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searching for Orbit 297 found (27298 total)

alternate case: orbit

Moon landing (9,613 words) [view diff] exact match in snippet view article find links to article

from lunar mass concentrations ("masscons") to maintain their orbit. Japan's lunar orbiter Hiten impacted the Moon's surface on 10 April 1993. The European
Solar System (13,671 words) [view diff] exact match in snippet view article find links to article
bound system of the Sun and the objects that orbit it, either directly or indirectly. Of the objects that orbit the Sun directly, the largest are the eight
Jupiter (13,230 words) [view diff] exact match in snippet view article find links to article
with the gas disk orbiting the Sun and orbital resonances with Saturn caused it to migrate inward. This would have upset the orbits of what are believed
Pluto (12,366 words) [view diff] exact match in snippet view article find links to article
that's located in the Kuiper belt, which is a ring of bodies beyond the orbit of Neptune. It was the first and largest Kuiper belt object to be discovered
Orbit (anatomy) (1,484 words) [view diff] exact match in snippet view article
In anatomy, the orbit is the cavity or socket of the skull in which the eye and its appendages are situated. "Orbit" can refer to the bony socket, or
Group action (5,845 words) [view diff] exact match in snippet view article find links to article
belongs to ( H ) {\displaystyle (H)} . A maximal orbit type is often called a principal orbit type. Orbits and stabilizers are closely related. For a fixed
International Space Station (26,148 words) [view diff] exact match in snippet view article find links to article
is a modular space station (habitable artificial satellite) in low Earth orbit. It is a multinational collaborative project involving five participating
Space debris (15,099 words) [view diff] exact match in snippet view article find links to article
space garbage) is defunct artificial objects in space—principally in Earth orbit—which no longer serve a useful function. These include derelict spacecraft—nonfunctional
Saturn (9,987 words) [view diff] exact match in snippet view article find links to article
smaller amount of rocky debris and dust. At least 82 moons are known to orbit Saturn, of which 53 are officially named; this does not include the hundreds
Chandrayaan-1 (8,321 words) [view diff] exact match in snippet view article find links to article
October 2008, and operated until August 2009. The mission included a lunar orbiter and an impactor. India launched the spacecraft using a PSLV-XL rocket on
Zedd (3,081 words) [view diff] exact match in snippet view article find links to article
Perry, Alessia Cara, and Maren Morris. On 1 May 2019, Zedd announced the Orbit Tour, which kicks off in the fall of 2019. He will tour along with duo NOTD
Triton (moon) (7,211 words) [view diff] exact match in snippet view article
System with a retrograde orbit, an orbit in the direction opposite to its planet's rotation. Because of its retrograde orbit and composition similar to
Starlink (14,895 words) [view diff] exact match in snippet view article find links to article
consist of many thousands of mass-produced small satellites in low Earth orbit (LEO), which communicate with designated ground transceivers. While the
SpaceX (13,699 words) [view diff] exact match in snippet view article find links to article
orbital rocket (Falcon 9 in 2015), the first reuse of an orbital rocket (Falcon 9 in 2017), and the first private company to send astronauts to orbit
Apollo 11 (18,899 words) [view diff] exact match in snippet view article find links to article
module pilot Michael Collins flew the Command Module Columbia alone in lunar orbit while they were on the Moon's surface. Armstrong and Aldrin spent 21 hours
Apollo program (15,909 words) [view diff] exact match in snippet view article find links to article
and walked on the lunar surface, while Michael Collins remained in lunar orbit in the command and service module (CSM), and all three landed safely on
Comet (14,927 words) [view diff] exact match in snippet view article find links to article
religions. Comets usually have highly eccentric elliptical orbits, and they have a wide range of orbital periods, ranging from several years to potentially several
ArcelorMittal Orbit (5,580 words) [view diff] exact match in snippet view article find links to article
The ArcelorMittal Orbit (often referred to as the Orbit Tower or its original name, Orbit) is a 114.5-metre-high sculpture and observation tower in the
Minimum orbit intersection distance (697 words) [view diff] exact match in snippet view article find links to article
Minimum orbit intersection distance (MOID) is a measure used in astronomy to assess potential close approaches and collision risks between astronomical
William Orbit (2,072 words) [view diff] exact match in snippet view article find links to article
Mark Wainwright (born 15 December 1956), known professionally as William Orbit, is an English musician and record producer who has sold 200 million recordings
Launch vehicle (987 words) [view diff] exact match in snippet view article find links to article
used to carry a payload from Earth's surface to space, usually to Earth orbit or beyond. A launch system includes the launch vehicle, launch pad, vehicle
List of Falcon 9 and Falcon Heavy launches (22,951 words) [view diff] exact match in snippet view article find links to article
became the first rocket to land propulsively after delivering a payload into orbit. This achievement significantly reduced launch costs. Falcon family core
Apollo 8 (11,085 words) [view diff] exact match in snippet view article find links to article
leave low Earth orbit, and also the first human spaceflight to reach another astronomical object, namely the Moon, which the crew orbited without landing
Extraocular muscles (1,660 words) [view diff] exact match in snippet view article find links to article
eye. Four of the extraocular muscles have their origin in the back of the orbit in a fibrous ring called the annulus of Zinn: the four rectus muscles. The
Near-Earth object (13,228 words) [view diff] exact match in snippet view article find links to article
A near-Earth object (NEO) is any small Solar System body whose orbit brings it into proximity with Earth. By convention, a Solar System body is a NEO
Apollo Lunar Module (5,786 words) [view diff] exact match in snippet view article find links to article
Module (LEM), was the Lunar lander spacecraft that was flown between lunar orbit and the Moon's surface during the United States' Apollo program. It was
Mars (21,488 words) [view diff] exact match in snippet view article find links to article
in orbit – 2001 Mars Odyssey, Mars Express, Mars Reconnaissance Orbiter, MAVEN, Mars Orbiter Mission, ExoMars Trace Gas Orbiter, the Hope orbiter, and
Detached object (2,313 words) [view diff] exact match in snippet view article find links to article
the broader family of trans-Neptunian objects (TNOs). These objects have orbits whose points of closest approach to the Sun (perihelion) are sufficiently
Juno (spacecraft) (8,355 words) [view diff] exact match in snippet view article
Juno is a NASA space probe orbiting the planet Jupiter. It was built by Lockheed Martin and is operated by NASA's Jet Propulsion Laboratory. The spacecraft
Dawn (spacecraft) (8,159 words) [view diff] exact match in snippet view article
entered orbit around Vesta on July 16, 2011, and completed a 14-month survey mission before leaving for Ceres in late 2012. It entered orbit around Ceres
OSN (834 words) [view diff] exact match in snippet view article find links to article
Coordinates: 25°5′49″N 55°9′26″E / 25.09694°N 55.15722°E / 25.09694; 55.15722 Orbit Showtime Network (OSN HD, stylized as "osn") is a Middle Eastern multinational
Inspiration4 (2,382 words) [view diff] exact match in snippet view article find links to article
368 km (850 mi), the highest Earth orbit ever reached on a crewed flight. The Inspiration4 flight reached an orbital altitude of approximately 585 km (364 mi)
International Designator (581 words) [view diff] exact match in snippet view article find links to article
was designated 1957 Alpha 2. The launch vehicle, which was brighter in orbit, was designated 1957 Alpha 1. Brighter objects in the same launch were given
Cis-Neptunian object (170 words) [view diff] exact match in snippet view article find links to article
cis-Neptunian object is, literally, any astronomical body found within the orbit of Neptune. However, the term is typically used for those distant minor
OSN (834 words) [view diff] exact match in snippet view article find links to article
Coordinates: 25°5′49″N 55°9′26″E / 25.09694°N 55.15722°E / 25.09694; 55.15722 Orbit Showtime Network (OSN HD, stylized as "osn") is a Middle Eastern multinational
Spitzer Space Telescope (5,360 words) [view diff] exact match in snippet view article find links to article
and ISO (1995–98). It was the first spacecraft to use an earth-trailing orbit, later used by the Kepler planet-finder. The planned mission period was
Transiting Exoplanet Survey Satellite (6,257 words) [view diff] exact match in snippet view article find links to article
about 1,250 transiting exoplanets orbiting the targeted stars, and an additional 13,000 transiting planets orbiting additional stars in the fields that
The Jetsons (5,195 words) [view diff] exact match in snippet view article find links to article
Robo-WrestleMania!, was released in 2017. The Jetsons are a family residing in Orbit City. The city's architecture is rendered in the Googie style and all homes
Satellite Catalog Number (604 words) [view diff] exact match in snippet view article find links to article
satellite having been assigned catalog number 2. Objects that fail to orbit or orbit for a short time are not catalogued. The minimum object size in the
Iridium satellite constellation (5,342 words) [view diff] exact match in snippet view article find links to article
satellites in orbit, required for global coverage, and additional spare satellites to serve in case of failure. Satellites are in low Earth orbit at a height
Orbit Books (444 words) [view diff] exact match in snippet view article find links to article
Orbit Books is an international publisher that specialises in science fiction and fantasy books. It is a division of Lagardère Publishing. It was founded
List of Apollo missions (2,440 words) [view diff] exact match in snippet view article find links to article
and walked on the lunar surface, while Michael Collins remained in lunar orbit in the command and service module (CSM), and all three landed safely on
Elon Musk's Tesla Roadster (4,983 words) [view diff] exact match in snippet view article find links to article
Earth's gravity and enter an elliptical heliocentric orbit crossing the orbit of Mars. The orbit reaches a maximum distance from the Sun at aphelion of
Sputnik 1 (8,143 words) [view diff] exact match in snippet view article find links to article
Earth orbit by the USSR on 4 October 1957 as part of the Soviet space program. It orbited for three weeks before its batteries died and then orbited silently
MESSENGER (6,892 words) [view diff] exact match in snippet view article find links to article
MESSENGER was a NASA robotic space probe that orbited the planet Mercury between 2011 and 2015, studying Mercury's chemical composition, geology, and
Energia (1,613 words) [view diff] exact match in snippet view article find links to article
to put the payload into orbit, and Energia-Buran, in which the Buran-class orbiters were the payload and the source of the orbit insertion impulse. The
Uranus (14,398 words) [view diff] exact match in snippet view article find links to article
working in Russia, was the first to compute the orbit of the new object. Its nearly circular orbit led him to a conclusion that it was a planet rather
Distant minor planet (215 words) [view diff] exact match in snippet view article find links to article
Center (MPC), which is responsible for the identification, designation and orbit computation of these objects. As of July 2020[update], the MPC maintains
Observation arc (740 words) [view diff] exact match in snippet view article find links to article
many different orbits, at many distances from Earth. In some cases, the initial arc was too short to determine if the object was in orbit around the Earth
Boeing X-37 (6,910 words) [view diff] exact match in snippet view article find links to article
The Boeing X-37, also known as the Orbital Test Vehicle (OTV), is a reusable robotic spacecraft. It is boosted into space by a launch vehicle, then re-enters
Solar eclipse (8,945 words) [view diff] exact match in snippet view article find links to article
obscured. If the Moon were in a perfectly circular orbit, a little closer to the Earth, and in the same orbital plane, there would be total solar eclipses every
James Webb Space Telescope (11,089 words) [view diff] exact match in snippet view article find links to article
gravitational pull, a halo orbit is not an orbit in the usual sense: the spacecraft is actually in orbit around the Sun, and the halo orbit can be thought of as
List of Solar System objects (466 words) [view diff] exact match in snippet view article find links to article
The following is a list of Solar System objects by orbit, ordered by increasing distance from the Sun. Most named objects in this list have a diameter
Space Race (16,057 words) [view diff] exact match in snippet view article find links to article
probes to the Moon, Venus, and Mars, and human spaceflight in low Earth orbit and ultimately to the Moon. The competition began in earnest on August 2
List of Mars orbiters (1,097 words) [view diff] exact match in snippet view article find links to article
following table is a list of Mars orbiters, consisting of space probes which were launched from Earth and are currently orbiting Mars. As of February 2021, there
Trackball (2,565 words) [view diff] exact match in snippet view article find links to article
movement of the ball could be determined. Since 1966, the American company Orbit Instrument Corporation produced a device named X-Y Ball Tracker, a trackball
List of space telescopes (3,842 words) [view diff] exact match in snippet view article find links to article
of the initial orbit. For telescopes in Earth orbit, the min and max altitude are given in kilometers. For telescopes in solar orbit, the minimum distance
Moons of Neptune (4,261 words) [view diff] exact match in snippet view article find links to article
Nereid. Neptune's outermost moon Neso, which has an orbital period of about 26 Julian years, orbits farther from its planet than any other moon in the
Polar Satellite Launch Vehicle (3,552 words) [view diff] exact match in snippet view article find links to article
launch its Indian Remote Sensing (IRS) satellites into sun-synchronous orbits, a service that was, until the advent of the PSLV in 1993, commercially
Exoplanet (10,742 words) [view diff] exact match in snippet view article find links to article
Earth-sized planets in the Milky Way, rising to 40 billion if planets orbiting the numerous red dwarfs are included. The least massive planet known is
BeiDou (5,077 words) [view diff] exact match in snippet view article find links to article
China in December 2011 with a partial constellation of 10 satellites in orbit. Since December 2012, it has been offering services to customers in the
Akatsuki (spacecraft) (3,774 words) [view diff] exact match in snippet view article
Akatsuki (あかつき, 暁, "Dawn"), also known as the Venus Climate Orbiter (VCO) and Planet-C, is a Japanese (JAXA) space probe tasked to study the atmosphere
Super heavy-lift launch vehicle (3,158 words) [view diff] exact match in snippet view article find links to article
Earth orbit (LEO), more than a heavy-lift launch vehicle. As of September 2021[update] only two super heavy launch vehicles have achieved orbit carrying
Neptune trojan (2,238 words) [view diff] exact match in snippet view article find links to article
the same orbital period as Neptune and follow roughly the same orbital path. Twenty-two Neptune trojans are currently known, of which 19 orbit near the
Trojan (celestial body) (1,352 words) [view diff] exact match in snippet view article
celestial body (mostly asteroids) that shares the orbit of a larger one, remaining in a stable orbit approximately 60° ahead of or behind the main body
Apollo 10 (3,750 words) [view diff] exact match in snippet view article find links to article
in the United States Apollo program, and the second (after Apollo 8) to orbit the Moon. It was the F mission: a "dress rehearsal" for the first Moon landing
Halley's Comet (9,089 words) [view diff] exact match in snippet view article find links to article
calculations. Halley's orbital period has varied between 74 and 79 years since 240 BC. Its orbit around the Sun is highly elliptical, with an orbital eccentricity
Project Mercury (11,380 words) [view diff] exact match in snippet view article find links to article
early highlight of the Space Race, its goal was to put a man into Earth orbit and return him safely, ideally before the Soviet Union. Taken over from
Space exploration (10,137 words) [view diff] exact match in snippet view article find links to article
Union and the United States. The launch of the first human-made object to orbit Earth, the Soviet Union's Sputnik 1, on 4 October 1957, and the first Moon
Halley's Comet (9,089 words) [view diff] exact match in snippet view article find links to article
calculations. Halley's orbital period has varied between 74 and 79 years since 240 BC. Its orbit around the Sun is highly elliptical, with an orbital eccentricity
Mir (13,027 words) [view diff] exact match in snippet view article find links to article
Earth orbit from 1986 to 2001, operated by the Soviet Union and later by Russia. Mir was the first modular space station and was assembled in orbit from
Lunar month (2,669 words) [view diff] exact match in snippet view article find links to article
Sun as seen from the Earth. While the Moon is orbiting the Earth, the Earth is progressing in its orbit around the Sun. After completing a sidereal month
Project Mercury (11,380 words) [view diff] exact match in snippet view article find links to article
early highlight of the Space Race, its goal was to put a man into Earth orbit and return him safely, ideally before the Soviet Union. Taken over from
Satellite navigation (3,335 words) [view diff] exact match in snippet view article find links to article
Earth orbit (MEO) satellites spread between several orbital planes. The actual systems vary, but use orbital inclinations of >50° and orbital periods
C/2014 UN271 (Bernardinelli-Bernstein) (1,957 words) [view diff] exact match in snippet view article
object was 29 AU (4.3 billion km) from the Sun, almost as far as Neptune's orbit and the greatest distance at which a comet has been discovered. During 2021
List of Solar System probes (2,457 words) [view diff] exact match in snippet view article find links to article
This is a list of space probes that have left Earth orbit (or were launched with that intention but failed), organized by their planned destination. It
Ceres (dwarf planet) (11,464 words) [view diff] exact match in snippet view article
designation: 1 Ceres) is the largest object in the asteroid belt between the orbits of Mars and Jupiter. Ceres was the first asteroid discovered, on 1 January
Cape Canaveral Space Force Station (4,200 words) [view diff] exact match in snippet view article find links to article
to orbit Mars (1971) and roam its surface (1996), the first American spacecraft to orbit and land on Venus (1978), the first spacecraft to orbit Saturn
Lunar Reconnaissance Orbiter (3,037 words) [view diff] exact match in snippet view article find links to article
Lunar Reconnaissance Orbiter (LRO) is a NASA robotic spacecraft currently orbiting the Moon in an eccentric polar mapping orbit. Data collected by LRO
Mercury-Atlas 6 (4,653 words) [view diff] exact match in snippet view article find links to article
Mercury-Atlas 6 (MA-6) was the first American orbital spaceflight, which took place on February 20, 1962. Piloted by astronaut John Glenn and operated
Aerospace engineering (2,270 words) [view diff] exact match in snippet view article find links to article
enter orbit around the Moon, with two, Neil Armstrong and Buzz Aldrin, visiting the lunar surface. The third astronaut, Michael Collins, stayed in orbit to
Bohr model (7,800 words) [view diff] exact match in snippet view article find links to article
in 1913, is a system consisting of a small, dense nucleus surrounded by orbiting electrons—similar to the structure of the Solar System, but with attraction
SpaceX Starship (8,988 words) [view diff] exact match in snippet view article find links to article
place more than 100 metric tons (220,000 lb) to low Earth orbit; higher Earth and other orbits are accessible after being refueled by tanker Starships.
Constellation program (5,562 words) [view diff] exact match in snippet view article find links to article
included the regaining of significant astronaut experience beyond low Earth orbit and the development of technologies necessary to enable sustained human
Spaceplane (4,764 words) [view diff] exact match in snippet view article find links to article
both aircraft and spacecraft. Orbital spaceplanes tend to be more similar to conventional spacecraft, while sub-orbital spaceplanes tend to be more similar
Lunar node (926 words) [view diff] exact match in snippet view article find links to article
A lunar node is either of the two orbital nodes of the Moon, that is, the two points at which the orbit of the Moon intersects the ecliptic. The ascending
Orbit of Mars (1,683 words) [view diff] exact match in snippet view article find links to article
Mars has an orbit with a semimajor axis of 1.524 astronomical units (228 million km), and an eccentricity of 0.0934. The planet orbits the Sun in 687 days
Exophthalmos (865 words) [view diff] exact match in snippet view article find links to article
out of the orbit. Exophthalmos can be either bilateral (as is often seen in Graves' disease) or unilateral (as is often seen in an orbital tumor). Complete
Two-body problem (2,334 words) [view diff] exact match in snippet view article find links to article
also Kepler problem), arising in astronomy for predicting the orbits (or escapes from orbit) of objects such as satellites, planets, and stars. A two-point-particle
Quantum chaos (3,771 words) [view diff] exact match in snippet view article find links to article
of the same Hamiltonian (system). Semiclassical methods such as periodic-orbit theory connecting the classical trajectories of the dynamical system with
CubeSat (9,730 words) [view diff] exact match in snippet view article find links to article
(COTS) components for their electronics and structure. CubeSats are put into orbit by deployers on the International Space Station, or launched as secondary
Libration (1,395 words) [view diff] exact match in snippet view article find links to article
the eccentricity of the Moon's orbit around Earth; the Moon's rotation sometimes leads and sometimes lags its orbital position. The lunar libration in
Skylab (11,640 words) [view diff] exact match in snippet view article find links to article
crews: Skylab 2, Skylab 3, and Skylab 4. Major operations included an orbital workshop, a solar observatory, Earth observation, and hundreds of experiments
Io (moon) (12,030 words) [view diff] exact match in snippet view article
4:1 mean-motion orbital resonance with Ganymede, completing two orbits of Jupiter for every one orbit completed by Europa, and four orbits for every one
Spacecraft propulsion (6,316 words) [view diff] exact match in snippet view article find links to article
decades, and newer Western geo-orbiting spacecraft are starting to use them for north–south station-keeping and orbit raising. Interplanetary vehicles
Defense Meteorological Satellite Program (2,331 words) [view diff] exact match in snippet view article find links to article
Defense. The program is managed by the United States Space Force with on-orbit operations provided by the National Oceanic and Atmospheric Administration
List of lunar probes (286 words) [view diff] exact match in snippet view article find links to article
This is a list of robotic space probes that have flown by, impacted, orbited or landed on the Moon for the purpose of lunar exploration, as well as probes
99942 Apophis (6,727 words) [view diff] exact match in snippet view article find links to article
on December 27, and an improved orbit solution was computed. Radar astrometry in January 2005 further refined its orbit solution. The discovery was notable
Lunar Gateway (6,273 words) [view diff] exact match in snippet view article find links to article
Lunar Gateway, or simply Gateway, is a planned small space station in lunar orbit intended to serve as a solar-powered communication hub, science laboratory
Human spaceflight (10,075 words) [view diff] exact match in snippet view article find links to article
Space Station (ISS). As of 2021, humans have not traveled beyond low Earth Orbit since the Apollo 17 lunar mission in December 1972. Currently, the United
Indian Regional Navigation Satellite System (3,435 words) [view diff] exact match in snippet view article find links to article
two additional satellites on ground as stand-by. The constellation is in orbit as of 2018, and the system was expected to be operational from early 2018
Earth trojan (1,232 words) [view diff] exact match in snippet view article find links to article
asteroid that orbits the Sun in the vicinity of the Earth–Sun Lagrangian points L4 (leading 60°) or L5 (trailing 60°), thus having an orbit similar to Earth's
The Lockdown Sessions (879 words) [view diff] exact match in snippet view article find links to article
Robert Trujillo and Chad Smith) Lars Ulrich James Hetfield Watt 6:35 9. "Orbit" (with SG Lewis) John Sophie Cooke Samuel George Lewis   3:28 10. "Simple
Co-orbital configuration (1,430 words) [view diff] exact match in snippet view article find links to article
astronomy, a co-orbital configuration is a configuration of two or more astronomical objects (such as asteroids, moons, or planets) orbiting at the same,
4 Vesta (8,357 words) [view diff] exact match in snippet view article find links to article
distance of Ceres from the Sun, though its orbit lies entirely within that of Ceres. NASA's Dawn spacecraft entered orbit around Vesta on 16 July 2011 for a one-year
Aten asteroid (501 words) [view diff] exact match in snippet view article find links to article
The Aten asteroids are a dynamical group of asteroids whose orbits bring them into proximity with Earth. By definition, Atens are Earth-crossing asteroids
Hubble Space Telescope (17,773 words) [view diff] exact match in snippet view article find links to article
as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope,
List of Apollo astronauts (3,931 words) [view diff] exact match in snippet view article find links to article
and 24, flying on nine missions between December 1968 and December 1972, orbited the Moon. During six two-man landing missions twelve astronauts walked
Europa Clipper (6,450 words) [view diff] exact match in snippet view article find links to article
Mission) is an interplanetary mission in development by NASA comprising an orbiter. Planned for launch in October 2024, the spacecraft is being developed
GLONASS (8,136 words) [view diff] exact match in snippet view article find links to article
achieved full coverage of Russia's territory and in October 2011 the full orbital constellation of 24 satellites was restored, enabling full global coverage
Gonets (500 words) [view diff] exact match in snippet view article find links to article
Gonets (Russian Гонец, for Messenger) is a Russian civilian low Earth orbit communications satellite system. It consists of a number of satellites, derived
Apollo 12 (7,545 words) [view diff] exact match in snippet view article find links to article
activity while Command Module Pilot Richard F. Gordon remained in lunar orbit. Apollo 12 would have attempted the first lunar landing had Apollo 11 failed
Space launch (2,091 words) [view diff] exact match in snippet view article find links to article
Theodore von Kármán calculated, a vehicle would have to travel faster than orbital velocity to derive sufficient aerodynamic lift from the atmosphere to support
THEMIS (2,070 words) [view diff] exact match in snippet view article find links to article
Titan Themis. Three of the satellites orbit the Earth within the magnetosphere, while two have been moved into orbit around the Moon. Those two were renamed
Earthrise (1,633 words) [view diff] exact match in snippet view article find links to article
photograph of Earth and some of the Moon's surface that was taken from lunar orbit by astronaut William Anders on December 24, 1968, during the Apollo 8 mission
Galileo (satellite navigation) (9,422 words) [view diff] exact match in snippet view article
from the IOV (In-Orbit Validation) types and 19 of the FOC types. Two test FOC satellites are orbiting the Earth in highly eccentric orbits whose orientation
Space tourism (6,601 words) [view diff] exact match in snippet view article find links to article
purposes. There are several different types of space tourism, including orbital, suborbital and lunar space tourism. Work also continues towards developing
Fobos-Grunt (5,879 words) [view diff] exact match in snippet view article find links to article
Phobos, one of the moons of Mars. Fobos-Grunt also carried the Chinese Mars orbiter Yinghuo-1 and the tiny Living Interplanetary Flight Experiment funded by
Soviet space program (6,193 words) [view diff] exact match in snippet view article find links to article
Earth orbit (the dog Laika on Sputnik 2), first human in space and Earth orbit (Yuri Gagarin on Vostok 1), first woman in space and Earth orbit (Valentina
Jupiter Icy Moons Explorer (2,198 words) [view diff] exact match in snippet view article find links to article
the spacecraft will enter orbit around Ganymede for its close up science mission, becoming the first spacecraft to orbit a moon other than the moon of
List of missions to Mars (3,074 words) [view diff] exact match in snippet view article find links to article
missions (including unsuccessful ones) relating to the planet Mars, such as orbiters and rovers. Mission Type Legend   Mission to Mars   Gravity assist, destination
Rocket Lab Electron (3,472 words) [view diff] exact match in snippet view article find links to article
Electron is a two-stage, partially recoverable orbital launch vehicle developed by Rocket Lab, an American aerospace company with a wholly owned New Zealand
Proton-M (2,733 words) [view diff] exact match in snippet view article find links to article
orbit). Subsequently, the Briz-M performs orbital maneuvers to place the payload into either its final orbit or a transfer orbit. If a transfer orbit
Vostok programme (2,771 words) [view diff] exact match in snippet view article find links to article
human spaceflight project to put the first Soviet citizens into low Earth orbit and return them safely. Competing with the United States Project Mercury
Turntablism (6,137 words) [view diff] exact match in snippet view article find links to article
click orbit, etc. Orbits can be performed once as a single orbit move, or sequenced to produce a cyclical never ending type of orbit sound. Flare is a
Turntablism (6,137 words) [view diff] exact match in snippet view article find links to article
click orbit, etc. Orbits can be performed once as a single orbit move, or sequenced to produce a cyclical never ending type of orbit sound. Flare is a
Lunar distance (astronomy) (3,646 words) [view diff] exact match in snippet view article
astronomy. More technically, it is the semi-major axis of the geocentric lunar orbit. The lunar distance is approximately 400,000 km, which is a quarter of a
Uncrewed spaceflights to the International Space Station (2,169 words) [view diff] exact match in snippet view article find links to article
achieve orbit". NASASpaceFlight.com. Retrieved 24 Aug 2011. "ISS On-Orbit Status 10/30/11". National Aeronautics and Space Administration. "ISS On-Orbit Status
Apollo 15 (10,965 words) [view diff] exact match in snippet view article find links to article
surface material. At the same time, Command Module Pilot Alfred Worden orbited the Moon, operating the sensors in the scientific instrument module (SIM)
Accessory visual structures (484 words) [view diff] exact match in snippet view article find links to article
and clean. One source defines "ocular adnexa" as the orbit, conjunctiva, and eyelids. The orbit and extraocular muscles allow for the smooth movement
Luna programme (1,263 words) [view diff] exact match in snippet view article find links to article
between 1959 and 1976. Fifteen were successful, each designed as either an orbiter or lander, and accomplished many firsts in space exploration. They also
Guiana Space Centre (3,139 words) [view diff] exact match in snippet view article find links to article
is required to manoeuvre a spacecraft into an equatorial, geostationary orbit. It has open sea to the east, so that lower stages of rockets and debris
Yinghuo-1 (1,185 words) [view diff] exact match in snippet view article find links to article
first Chinese planetary space probe and the first Chinese spacecraft to orbit Mars. It was launched from Baikonur Cosmodrome, Kazakhstan, on 8 November
Ulysses (spacecraft) (3,649 words) [view diff] exact match in snippet view article
UK: /ˈjuːlɪ-/) was a robotic space probe whose primary mission was to orbit the Sun and study it at all latitudes. It was launched in 1990 and made
Luna 1 (1,428 words) [view diff] exact match in snippet view article find links to article
of Earth's Moon, and the first spacecraft to be placed in heliocentric orbit. Intended as an impactor, Luna 1 was launched as part of the Soviet Luna
C/2021 A1 (Leonard) (493 words) [view diff] exact match in snippet view article
perihelion) when the comet was 5 AU (750 million km) from the Sun. Jupiter's orbit (5 AU from the Sun) is about the distance from the Sun that methanol (CH3OH)
Active asteroid (3,274 words) [view diff] exact match in snippet view article find links to article
Active asteroids are small Solar System bodies that have asteroid-like orbits but show comet-like visual characteristics. That is, they show comae, tails
Quantum number (2,499 words) [view diff] exact match in snippet view article find links to article
is called s orbital, ℓ = 1, p orbital, ℓ = 2, d orbital, and ℓ = 3, f orbital. The value of ℓ ranges from 0 to n − 1, so the first p orbital (ℓ = 1) appears
List of comets with no meaningful orbit (115 words) [view diff] exact match in snippet view article find links to article
positions of the comets to a high enough precision to generate any meaningful orbit. Later comets, observed in the 17th century or later, either did not have
Sputnik 2 (2,626 words) [view diff] exact match in snippet view article find links to article
into Earth orbit, on 3 November 1957, and the first to carry a living animal, a Soviet space dog named Laika. Laika died on the fourth orbit due to overheating
List of satellites in geosynchronous orbit (745 words) [view diff] exact match in snippet view article find links to article
This is a list of satellites in geosynchronous orbit (GSO). These satellites are commonly used for communication purposes, such as radio and television
Briz (rocket stage) (1,242 words) [view diff] exact match in snippet view article
and M meaning Breeze-K, KM and M) are Russian liquid-propellant rocket orbit insertion upper stages manufactured by Khrunichev State Research and Production
Apollo 17 (6,202 words) [view diff] exact match in snippet view article find links to article
and remains the most recent time humans have traveled beyond low Earth orbit and also the most recent time humans have set foot on the Moon. Its crew
Magellan (spacecraft) (4,408 words) [view diff] exact match in snippet view article
first spacecraft to test aerobraking as a method for circularizing its orbit. Magellan was the fifth successful NASA mission to Venus, and it ended an
Parker Solar Probe (5,610 words) [view diff] exact match in snippet view article find links to article
planned to be: the Solar Orbiter, the Pluto and Kuiper belt reconnaissance mission Pluto Kuiper Express, and the Europa Orbiter astrobiology mission focused
Lunar phase (2,554 words) [view diff] exact match in snippet view article find links to article
gradually change over a synodic month (about 29.53 days) as the Moon's orbital positions around Earth and Earth around the Sun shift. The visible side
Ka band (571 words) [view diff] exact match in snippet view article find links to article
internet access in geostationary orbit (GEO) by the Inmarsat I-5 system and Kacific K-1 satellite; in low Earth orbit (LEO) by the SpaceX Starlink system
Hugo Award for Best Novel (2,773 words) [view diff] exact match in snippet view article find links to article
Ancillary Sword Orbit Books 2016 N. K. Jemisin* The Fifth Season Orbit Books Naomi Novik Uprooted Del Rey Books Ann Leckie Ancillary Mercy Orbit Books Neal
NEAR Shoemaker (2,591 words) [view diff] exact match in snippet view article find links to article
near-Earth asteroid Eros from close orbit over a period of a year. It was the first spacecraft to successfully orbit an asteroid and also land on an asteroid
Interstellar Boundary Explorer (1,811 words) [view diff] exact match in snippet view article find links to article
Interstellar Boundary Explorer (IBEX) is a NASA satellite in Earth orbit that uses energetic neutral atoms (ENAs) to image the interaction region between
Hiten (787 words) [view diff] exact match in snippet view article find links to article
a small orbiter, Hagoromo (はごろも, named after the feather mantle of Hiten), into lunar orbit. The transmitter on Hagoromo failed, but its orbit was visually
Rings of Jupiter (5,328 words) [view diff] exact match in snippet view article find links to article
the system was more thoroughly investigated in the 1990s by the Galileo orbiter. The main ring has also been observed by the Hubble Space Telescope and
Milankovitch cycles (4,804 words) [view diff] exact match in snippet view article find links to article
are dominant. The Earth's orbit varies between nearly circular and mildly elliptical (its eccentricity varies). When the orbit is more elongated, there
BepiColombo (3,424 words) [view diff] exact match in snippet view article find links to article
satellites launched together: the Mercury Planetary Orbiter (MPO) and Mio (Mercury Magnetospheric Orbiter, MMO). The mission will perform a comprehensive
Comet Encke (2,443 words) [view diff] exact match in snippet view article find links to article
(official designation: 2P/Encke), is a periodic comet that completes an orbit of the Sun once every 3.3 years. (This is the shortest period of a reasonably
(121514) 1999 UJ7 (463 words) [view diff] exact match in snippet view article
asteroid orbiting near the L4 point of Mars (60 degrees ahead Mars on its orbit). As of September 2011, it is the only known asteroid to orbit the leading
Apollo (spacecraft) (2,423 words) [view diff] exact match in snippet view article
design was based on the lunar orbit rendezvous approach: two docked spacecraft were sent to the Moon and went into lunar orbit. While the LM separated and
Geosynchronous satellite (1,034 words) [view diff] exact match in snippet view article find links to article
A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth's rotation period. Such a satellite returns
Season (5,486 words) [view diff] exact match in snippet view article find links to article
daylight hours in a given region. On Earth, seasons are the result of Earth's orbit around the Sun and Earth's axial tilt relative to the ecliptic plane. In
Herschel Space Observatory (3,658 words) [view diff] exact match in snippet view article find links to article
Search at the Infrared Science Archive. The observatory was carried into orbit in May 2009, reaching the second Lagrangian point (L2) of the Earth–Sun
GIOVE (1,837 words) [view diff] exact match in snippet view article find links to article
Galileo In-Orbit Validation Element, is the name for two satellites built for the European Space Agency (ESA) to test technology in orbit for the Galileo
Lexell's Comet (1,716 words) [view diff] exact match in snippet view article find links to article
D/1770 L1, popularly known as Lexell's Comet after its orbit computer Anders Johan Lexell, was a comet discovered by astronomer Charles Messier in June
Exploration of Mars (9,470 words) [view diff] exact match in snippet view article find links to article
eight orbiters surveying the planet: Mars Odyssey, Mars Express, Mars Reconnaissance Orbiter, Mars Orbiter Mission, MAVEN, the Trace Gas Orbiter, the Tianwen-1
Dysnomia (moon) (1,585 words) [view diff] exact match in snippet view article
optics system. Observations taken on September 10, 2005, revealed a moon in orbit around Eris, provisionally designated S/2005 (2003 UB313) 1. In keeping
Stability theory (1,586 words) [view diff] exact match in snippet view article find links to article
Gromov–Hausdorff distance. In dynamical systems, an orbit is called Lyapunov stable if the forward orbit of any point is in a small enough neighborhood or
Long March 5 (2,869 words) [view diff] exact match in snippet view article find links to article
000 kg (55,000 lb) to low Earth orbit (for CZ-5B) and approximately 14,000 kg (31,000 lb) to geostationary transfer orbit (for CZ-5). The Long March 5 roughly
Jason-3 (1,772 words) [view diff] exact match in snippet view article find links to article
GPS satellites in orbit to constantly determine its position in orbit. Similarly, DORIS is another system to help determine orbit positioning. Designed
Kosmos 382 (277 words) [view diff] exact match in snippet view article find links to article
N1/L3 spacecraft's Block D lunar orbit insertion/descent stage by simulating the lunar orbit insertion burn, the lunar orbit circularization burn and the
Trans-lunar injection (1,370 words) [view diff] exact match in snippet view article find links to article
Moon by more than three times its radius and was sent into a heliocentric orbit. Luna 2 performed the same maneuver more accurately on September 12, 1959
Tianlian I (819 words) [view diff] exact match in snippet view article find links to article
Tianlian I-04 on 22 November 2016. The satellites are in geostationary orbit. Tianlian I-01 Tianlian I-02 Tianlian I-03 Tianlian I-04 Tianlian I-01 (Simplified
Shtil' (623 words) [view diff] exact match in snippet view article find links to article
(weather)), is a converted SLBM used for launching artificial satellites into orbit. It is based on the R-29RM designed by State Rocket Center Makeyev and related
Apollo 14 (8,912 words) [view diff] exact match in snippet view article find links to article
While Shepard and Mitchell were on the surface, Roosa remained in lunar orbit aboard the Command and Service Module, performing scientific experiments
I-Space (Chinese company) (1,357 words) [view diff] exact match in snippet view article
Hyperbola-1 and reached low Earth orbit on its maiden flight, becoming the first private company from China to achieve orbit. A second launch of the Hyperbola-1
Arab Satellite Communications Organization (1,552 words) [view diff] exact match in snippet view article find links to article
2019. Some of the later satellites in the series remain operational in orbit, while others have been retired and are derelict. The foundation of Arab
QuickBird (836 words) [view diff] exact match in snippet view article find links to article
satellite, owned by DigitalGlobe, launched in 2001 and reentered after orbit decay in 2015. QuickBird used Ball Aerospace's Global Imaging System 2000
Tiangong space station (6,078 words) [view diff] exact match in snippet view article find links to article
(Chinese: 天宫空间站), is a space station being constructed by China in low Earth orbit between 340 and 450 km (210 and 280 mi) above the surface. Being China's
Enophthalmos (144 words) [view diff] exact match in snippet view article find links to article
the eyeball within the orbit due to changes in the volume of the orbit (bone) relative to its contents (the eyeball and orbital fat), or loss of function
Billionaire space race (1,365 words) [view diff] exact match in snippet view article find links to article
involves sending rockets to the ionosphere (mesosphere and thermosphere), orbital launch rockets, and suborbital tourist spaceflights. Among the billionaires
Celestis (827 words) [view diff] exact match in snippet view article find links to article
Star Trek creator Gene Roddenberry and 1960s icon Timothy Leary into Earth orbit. Also on board were remains of physicist and space visionary Gerard K. O'Neill
178P/Hug–Bell (224 words) [view diff] exact match in snippet view article find links to article
Hug-Bell's orbital period is about seven years; its orbit is eccentric, though less so than many comets. Hug-Bell's orbit lies entirely outside the orbit of Mars
15P/Finlay (683 words) [view diff] exact match in snippet view article find links to article
Comet Finlay is a periodic comet with an orbital period of 6 years discovered by William Henry Finlay (Royal Observatory, Cape of Good Hope, South Africa)
Intelsat 28 (132 words) [view diff] exact match in snippet view article find links to article
positioned in geosynchronous orbit at 33 degrees east, serving TV and broadband communications to Africa. Intelsat 28 was built by Orbital Sciences Corporation
Inertial Upper Stage (1,180 words) [view diff] exact match in snippet view article find links to article
Air Force beginning in 1976 for raising payloads from low Earth orbit to higher orbits or interplanetary trajectories following launch aboard a Titan 34D
Plutino (874 words) [view diff] exact match in snippet view article find links to article
trans-Neptunian objects that orbit in 2:3 mean-motion resonance with Neptune. This means that for every two orbits a plutino makes, Neptune orbits three times. The
Mariner program (2,426 words) [view diff] exact match in snippet view article find links to article
number of firsts, including the first planetary flyby, the first planetary orbiter, and the first gravity assist maneuver. Of the 10 vehicles in the Mariner
96P/Machholz (1,345 words) [view diff] exact match in snippet view article find links to article
considerably closer to the Sun than the orbit of Mercury. It is also the only known short-period comet with both high orbital inclination and high eccentricity
Apollo 16 (11,591 words) [view diff] exact match in snippet view article find links to article
spent 126 hours and 64 revolutions in lunar orbit. After Young and Duke rejoined Mattingly in lunar orbit, the crew released a subsatellite from the service
Chandrayaan-2 (10,409 words) [view diff] exact match in snippet view article find links to article
Research Organisation (ISRO), after Chandrayaan-1. It consists of a lunar orbiter, and also included the Vikram lander, and the Pragyan lunar rover, all
Meteosat (1,258 words) [view diff] exact match in snippet view article find links to article
metres in diameter and 3.195 metres long. Its initial mass in orbit is 282 kg, and in orbit, the satellite spins at 100 rpm around its main axis. The contract
O3b (2,783 words) [view diff] exact match in snippet view article find links to article
O3b is a satellite constellation in Medium Earth orbit (MEO) owned and operated by SES, and designed to provide low-latency broadband connectivity to
541132 Leleākūhonua (1,292 words) [view diff] exact match in snippet view article find links to article
Goblin" by its discoverers and later named Leleākūhonua, comparing its orbit to the flight of the Pacific golden plover. It was the third sednoid discovered
Chang'e 2 (2,068 words) [view diff] exact match in snippet view article find links to article
Lunar Exploration Program, and conducted research from a 100-km-high lunar orbit in preparation for the December 2013 soft landing by the Chang'e 3 lander
111P/Helin–Roman–Crockett (386 words) [view diff] exact match in snippet view article find links to article
these approaches, it actually orbits Jupiter. The last such approach was in 1976, the next will be in 2071. The Jovian orbits are highly elliptical and subject
Small satellite (3,834 words) [view diff] exact match in snippet view article find links to article
unique orbital and launch-timing requirements. Companies offering smallsat launch vehicles include: Rocket Lab's Electron (225 kg) Virgin Orbit's LauncherOne
Elevation (551 words) [view diff] exact match in snippet view article find links to article
points above the surface, such as an aircraft in flight or a spacecraft in orbit, and depth is used for points below the surface. Elevation is not to be
Arthur C. Clarke Award (1,246 words) [view diff] exact match in snippet view article find links to article
People Orbit Books M. John Harrison Light Victor Gollancz Ltd China Miéville The Scar Macmillan Publishers Elizabeth Moon Speed of Dark Orbit Books Kim
Venus Express (2,975 words) [view diff] exact match in snippet view article find links to article
April 2006 and began continuously sending back science data from its polar orbit around Venus. Equipped with seven scientific instruments, the main objective
Mars monolith (189 words) [view diff] exact match in snippet view article find links to article
cliff, from which it likely fell. The Mars Reconnaissance Orbiter took pictures of it from orbit, roughly 180 miles (300 km) away. The HiRISE camera that
Orbit (gum) (687 words) [view diff] exact match in snippet view article
Orbit is a brand of sugarless chewing gum from the Wrigley Company. In the United States, where it was re-launched in 2001, it is sold in cardboard boxes
Ray of Light (9,614 words) [view diff] exact match in snippet view article find links to article
English producer William Orbit. The recording process was the longest of Madonna's career, and she experienced problems with Orbit's hardware arrangement
International Cometary Explorer (3,131 words) [view diff] exact match in snippet view article find links to article
(ISEE-3) satellite), was launched August 12, 1978, into a heliocentric orbit. It was one of three spacecraft, along with the mother/daughter pair of
List of active Solar System probes (2,309 words) [view diff] exact match in snippet view article find links to article
space probes which have escaped Earth orbit. It includes lunar space probes, but does not include space probes orbiting at the Sun–Earth Lagrangian points
Proxima Centauri b (5,657 words) [view diff] exact match in snippet view article find links to article
Centauri b (also called Proxima b or Alpha Centauri Cb) is an exoplanet orbiting in the habitable zone of the red dwarf star Proxima Centauri, which is
Irregular moon (3,339 words) [view diff] exact match in snippet view article find links to article
eccentric and retrograde orbit. They have been captured by their parent planet, unlike regular satellites, which formed in orbit around them. Irregular
Yahsat 1A (177 words) [view diff] exact match in snippet view article find links to article
Middle East, Africa, Europe and Southwest Asia. It is in geosynchronous orbit at 52.5 degrees East. McDowell, Jonathan. "Launch Log". Jonathan's Space
Orbcomm (satellite) (1,641 words) [view diff] exact match in snippet view article
Orbcomm is a family of low Earth orbit communications satellites, operated by the United States satellite communications company Orbcomm. As of July 2014[update]
List of Satish Dhawan Space Centre launches (2,054 words) [view diff] exact match in snippet view article find links to article
occurs when the payload is placed into an orbit where it was still usable even though the intended height or orbit was not reached, or which could be corrected
Lockheed Martin X-33 (1,997 words) [view diff] exact match in snippet view article find links to article
Initiative program. The X-33 was a technology demonstrator for the VentureStar orbital spaceplane, which was planned to be a next-generation, commercially operated
Orbital Sciences Corporation (4,438 words) [view diff] exact match in snippet view article find links to article
Orbital Sciences Corporation (commonly referred to as Orbital) was an American company specializing in the design, manufacture and launch of small- and
International Cometary Explorer (3,131 words) [view diff] exact match in snippet view article find links to article
(ISEE-3) satellite), was launched August 12, 1978, into a heliocentric orbit. It was one of three spacecraft, along with the mother/daughter pair of
Lost comet (805 words) [view diff] exact match in snippet view article find links to article
compared to lost asteroids (lost minor planets), although calculation of comet orbits differs because of nongravitational forces, such as emission of jets of
P/2011 NO1 (Elenin) (364 words) [view diff] exact match in snippet view article
P/2011 NO1 (Elenin) is a periodic comet with a preliminary orbital period estimated at 13 ± 0.16 years. It came to perihelion (closest approach to the
Heavy-lift launch vehicle (1,530 words) [view diff] exact match in snippet view article find links to article
A heavy-lift launch vehicle, HLV or HLLV, is an orbital launch vehicle capable of lifting between 20,000 to 50,000 kg (44,000 to 110,000 lb) (by NASA
List of Satish Dhawan Space Centre launches (2,054 words) [view diff] exact match in snippet view article find links to article
occurs when the payload is placed into an orbit where it was still usable even though the intended height or orbit was not reached, or which could be corrected
Apollo 9 (6,515 words) [view diff] exact match in snippet view article find links to article
the third human spaceflight in NASA's Apollo program. Flown in low Earth orbit, it was the second crewed Apollo mission that the United States launched
STS-51-L (1,320 words) [view diff] exact match in snippet view article find links to article
Shuttle program, the program to carry out routine transportation for Earth-to-orbit crew and cargo; as well as the final flight of Space Shuttle Challenger
List of crewed spacecraft (3,595 words) [view diff] exact match in snippet view article find links to article
all crewed spacecraft types that have flown into space, including sub-orbital flights above 80 km, Space Stations that have been visited by at least
Stellar parallax (2,276 words) [view diff] exact match in snippet view article find links to article
object) against the background of distant objects. Created by the different orbital positions of Earth, the extremely small observed shift is largest at time
Emirates Mars Mission (4,057 words) [view diff] exact match in snippet view article find links to article
mission to Mars. The Hope orbiter (Arabic: مسبار الأمل‎, Misbar Al-Amal) was launched on 19 July 2020, and went into orbit around Mars on 9 February 2021
Hydra (moon) (2,561 words) [view diff] exact match in snippet view article
mythology. By distance, Hydra is the fifth and outermost moon of Pluto, orbiting beyond Pluto's fourth moon Kerberos. Hydra has a highly reflective surface
67P/Churyumov–Gerasimenko (5,128 words) [view diff] exact match in snippet view article find links to article
Jupiter-family comet, originally from the Kuiper belt, with a current orbital period of 6.45 years, a rotation period of approximately 12.4 hours and
C/2000 U5 (LINEAR) (441 words) [view diff] exact match in snippet view article
comet has an observation arc of 362 days allowing a good estimate of the orbit. C/2000 U5 is, as of 2015, the 13th most hyperbolic comet ever discovered
Vulcanoid (2,383 words) [view diff] exact match in snippet view article find links to article
a hypothetical population of asteroids that orbit the Sun in a dynamically stable zone inside the orbit of the planet Mercury. They are named after the
Planet Labs (3,213 words) [view diff] exact match in snippet view article find links to article
Triple-CubeSat miniature satellites called Doves that are then delivered into orbit as secondary payloads on other rocket launch missions. Each Dove is equipped
SES-8 (1,280 words) [view diff] exact match in snippet view article find links to article
a supersynchronous transfer orbit, an orbit with a somewhat larger apogee than the more usual geostationary transfer orbit (GTO) typically utilised for
Ofeq (888 words) [view diff] exact match in snippet view article find links to article
in Israel, on the Mediterranean coast. The low Earth orbit satellites complete one Earth orbit every 90 minutes. The satellite launches made Israel the
Fractional Orbital Bombardment System (4,496 words) [view diff] exact match in snippet view article find links to article
The Fractional Orbital Bombardment System (FOBS) was a nuclear-weapons delivery system developed in the 1960s by the Soviet Union. One of the first Soviet
Safir (rocket) (1,015 words) [view diff] exact match in snippet view article
Iranian expendable launch vehicle able to place a satellite in orbit. The first successful orbital launch using the Safir launch system took place on 2 February
Artemis (satellite) (788 words) [view diff] exact match in snippet view article
geostationary earth orbit satellite (GEOS) for telecommunications, built by Alenia Spazio for ESA. The Artemis satellite operated at the 21.5E orbital position until
C/1999 F1 (Catalina) (405 words) [view diff] exact match in snippet view article
(original) and outbound (future) orbits. The orbit of a long-period comet is properly obtained when the osculating orbit is computed at an epoch after leaving
Azimuth (1,943 words) [view diff] exact match in snippet view article find links to article
two-body orbits, by eccentricity Circular orbit Elliptic orbit Transfer orbit (Hohmann transfer orbit Bi-elliptic transfer orbit) Parabolic orbit Hyperbolic
Queqiao relay satellite (1,647 words) [view diff] exact match in snippet view article find links to article
types of orbits near the equilibrium points, include Lyapunov orbits, halo orbits, Lissajous orbits, and quasi-halo orbits. Lyapunov orbits pass behind
European Data Relay System (959 words) [view diff] exact match in snippet view article find links to article
provide almost full-time communication, even with satellites in low Earth orbit that often have reduced visibility from ground stations. It makes on-demand
Lunar Orbiter 1 (523 words) [view diff] exact match in snippet view article find links to article
The Lunar Orbiter 1 robotic spacecraft, part of NASA's Lunar Orbiter program, was the first American spacecraft to orbit the Moon. It was designed primarily
Apollo command and service module (7,343 words) [view diff] exact match in snippet view article find links to article
astronauts and the second Apollo spacecraft, the Apollo Lunar Module, to lunar orbit, and brought the astronauts back to Earth. It consisted of two parts: the
Habitability of binary star systems (981 words) [view diff] exact match in snippet view article find links to article
negligible on a planet orbiting an otherwise suitable star, and habitability potential will not be disrupted unless the orbit is highly eccentric (see
Cartoon Orbit (2,561 words) [view diff] exact match in snippet view article find links to article
Cartoon Orbit was a children's online gaming network created by Turner Online to promote its shows and partners. Created as an addition to the Cartoon
C/2015 ER61 (PanSTARRS) (644 words) [view diff] exact match in snippet view article
most eccentric orbit of any known minor planet, with its distance from the Sun varying by about 99.9% during the course of its orbit, followed by 2005
Schwarzschild radius (1,884 words) [view diff] exact match in snippet view article find links to article
Properties of the Milky Way's Central Supermassive Black Hole with Stellar Orbits". Astrophysical Journal. 689 (2): 1044–1062. arXiv:0808.2870. Bibcode:2008ApJ
Exoplanet Data Explorer (207 words) [view diff] exact match in snippet view article find links to article
The Exoplanet Data Explorer / Exoplanet Orbit Database lists extrasolar planets up to 24 Jupiter masses. "We have retained the generous upper mass limit
List of PSLV launches (5,850 words) [view diff] exact match in snippet view article find links to article
vehicle. The Mars Orbiter Mission (MOM), informally called Mangalyaan is a Mars orbiter that was successfully injected into Earth orbit on 5 November 2013
C/2017 U7 (700 words) [view diff] exact match in snippet view article find links to article
C/2017 U7's orbit is no longer bound to the Solar System, unlike ʻOumuamua, it is probably not an interstellar object. It had an inbound orbital period of
Kosmos 21 (725 words) [view diff] exact match in snippet view article find links to article
remain in geocentric orbit. In any case, the spacecraft never left Earth orbit after insertion by the Molniya launcher. The orbit decayed on 14 November
Arcadia of My Youth: Endless Orbit SSX (2,089 words) [view diff] exact match in snippet view article find links to article
Arcadia of My Youth: Endless Orbit SSX (わが青春のアルカディア·無限軌道SSX, Waga Seishun no Arukadia - Mugen Kidō Esu Esu Ekkusu) is an animated television series created
List of objects at Lagrange points (1,172 words) [view diff] exact match in snippet view article find links to article
late 2004 before being pushed into heliocentric orbit in early 2005. LISA Pathfinder The Chang'e 5 orbiter The Solar and Heliospheric Observatory (SOHO)
Lists of comets (192 words) [view diff] exact match in snippet view article find links to article
near-parabolic orbits that will not return to the vicinity of the Sun for thousands of years, if ever. Periodic comets usually have elongated elliptical orbits, and
Chang'e 1 (1,708 words) [view diff] exact match in snippet view article find links to article
traditional Chinese: 嫦娥一號; pinyin: Cháng'é yī hào) was an unmanned Chinese lunar-orbiting spacecraft, part of the first phase of the Chinese Lunar Exploration Program
53P/Van Biesbroeck (199 words) [view diff] exact match in snippet view article find links to article
parent comet that split around March 1845. The orbit of 53P/Van Biesbroeck has a Jupiter Minimum orbit intersection distance (MOID) of only 0.009 AU (1
Orel (spacecraft) (1,793 words) [view diff] exact match in snippet view article
Soyuz spacecraft developed by the former Soviet Union to support low Earth orbit and lunar operations. It is similar in function to the US Orion or Commercial
Fengyun (481 words) [view diff] exact match in snippet view article find links to article
FY, are China's weather satellites. China has launched polar orbit and geosynchronous orbit meteorological satellites since 1988. On 11 January 2007 China
Cassini retirement (972 words) [view diff] exact match in snippet view article find links to article
stages were aerobraking into orbit around Titan, leaving the Saturn system, or making close approaches and/or changing its orbit. For example, it could have
List of BeiDou satellites (229 words) [view diff] exact match in snippet view article find links to article
orbits (GEO), 10 in 55° inclined geosynchronous orbits (IGSO) and 26 in Medium Earth orbits (MEO). Furthermore, 6 satellites (2 in Medium Earth orbit
List of extraterrestrial orbiters (294 words) [view diff] exact match in snippet view article find links to article
extraterrestrial orbiters is a listing of spacecraft that achieved an extraterrestrial orbit. First artificial object on heliocentric orbit was Luna 1 (1959)
Doppler spectroscopy (2,231 words) [view diff] exact match in snippet view article find links to article
example, would cause its parent star to wobble slightly as the two objects orbit around their center of mass. He predicted that the small Doppler shifts
5D/Brorsen (483 words) [view diff] exact match in snippet view article find links to article
apparition the orbital period was calculated as 5.5 years. It was discovered that a close approach to Jupiter in 1842 put it in its discovery orbit. The comet's
Dynamical system (5,513 words) [view diff] exact match in snippet view article find links to article
collection of points known as a trajectory or orbit. Before the advent of computers, finding an orbit required sophisticated mathematical techniques
Small Astronomy Satellite 3 (1,071 words) [view diff] exact match in snippet view article find links to article
of each orbit, so that SAS 3 had essentially no expendables to limit its lifetime beyond the life of the tape recorders, batteries, and orbital drag. The
Corona (satellite) (5,602 words) [view diff] exact match in snippet view article
mice in this case) failed to achieve orbit when its Agena crashed into the Pacific Ocean. The pressure to orbit a photographic surveillance satellite
Mars Reconnaissance Orbiter (6,838 words) [view diff] exact match in snippet view article find links to article
Mars Reconnaissance Orbiter (MRO) is a spacecraft designed to study the geology and climate of Mars, provide reconnaissance of future landing sites, and
HiRISE (2,373 words) [view diff] exact match in snippet view article find links to article
Science Experiment is a camera on board the Mars Reconnaissance Orbiter which has been orbiting and studying Mars since 2006. The 65 kg (143 lb), US$40 million
Planck (spacecraft) (2,934 words) [view diff] exact match in snippet view article
At the end of its mission Planck was put into a heliocentric graveyard orbit and passivated to prevent it from endangering any future missions. The final
Thor (satellite) (672 words) [view diff] exact match in snippet view article
junk orbit in early January 2003. Thor 2 was launched on 21 May 1997, and retired in 2008 although it remained in an inclined geostationary orbit until
Gliese 876 e (251 words) [view diff] exact match in snippet view article find links to article
Gliese 876 e is an exoplanet orbiting the star Gliese 876 in the constellation of Aquarius. It is in a 1:2:4 Laplace resonance with the planets Gliese
OneWeb satellite constellation (5,276 words) [view diff] exact match in snippet view article find links to article
satellites was launched in February 2020, and another 34 were put into orbit in March 2020. These were followed by more launches in 2021. The small satellites
SES-11 (151 words) [view diff] exact match in snippet view article find links to article
has placed the satellite into a high-altitude supersynchronous transfer orbit. Spaceflight portal SES S.A. List of SES satellites "SES 11". SatBeams.
Kosmos 482 (578 words) [view diff] exact match in snippet view article find links to article
04:02:33 UTC, was an attempted Venus probe which failed to escape low Earth orbit. It is expected to crash back to Earth between 2023 and 2025. Its landing
RazakSAT (1,046 words) [view diff] exact match in snippet view article find links to article
high-resolution camera. It was launched into low Earth orbit on 14 July 2009. It was placed into a near-equatorial orbit that presents many imaging opportunities for
C/2000 W1 (Utsunomiya-Jones) (253 words) [view diff] exact match in snippet view article
has an observation arc of 58 days allowing a reasonable estimate of the orbit. But the near-parabolic trajectory with an osculating perihelion eccentricity
243 Ida (5,602 words) [view diff] exact match in snippet view article find links to article
have a natural satellite. Ida's orbit lies between the planets Mars and Jupiter, like all main-belt asteroids. Its orbital period is 4.84 years, and its
Comet Hale–Bopp (4,925 words) [view diff] exact match in snippet view article find links to article
announced in International Astronomical Union circular 6187. Hale–Bopp's orbital position was calculated as 7.2 astronomical units (AU) from the Sun, placing
Venera 2 (352 words) [view diff] exact match in snippet view article find links to article
Blok-L upper stage into a low Earth parking orbit before the Blok-L fired to propel Venera 2 into heliocentric orbit bound for Venus, with perihelion of 0.716
BioSentinel (1,163 words) [view diff] exact match in snippet view article find links to article
impact of deep space radiation on DNA repair over long time beyond low Earth orbit. Selected in 2013 for a 2022 launch, the spacecraft will operate in the
38P/Stephan–Oterma (229 words) [view diff] exact match in snippet view article find links to article
38P/Stephan–Oterma (also known as Comet Stephan–Oterma) is a periodic comet with an orbital period of 38 years. It fits the classical definition of a Halley-type comet
RazakSAT (1,046 words) [view diff] exact match in snippet view article find links to article
high-resolution camera. It was launched into low Earth orbit on 14 July 2009. It was placed into a near-equatorial orbit that presents many imaging opportunities for
Pioneer 6, 7, 8, and 9 (1,342 words) [view diff] exact match in snippet view article find links to article
Pioneer program, launched between 1965 and 1969. They were a series of solar-orbiting, spin-stabilized, solar cell- and battery-powered satellites designed to
Timeline of Solar System exploration (5,817 words) [view diff] exact match in snippet view article find links to article
notable Earth-orbiting craft.[vague] It does not include: Centuries of terrestrial telescopic observation. The great majority of Earth-orbiting satellites
In Orbit (Clark Terry album) (180 words) [view diff] exact match in snippet view article
In Orbit is an album by jazz trumpeter Clark Terry, also featuring Thelonious Monk, which was recorded in New York on May 7 & 12, 1958. It was Monk's
Venera 2 (352 words) [view diff] exact match in snippet view article find links to article
Blok-L upper stage into a low Earth parking orbit before the Blok-L fired to propel Venera 2 into heliocentric orbit bound for Venus, with perihelion of 0.716
243 Ida (5,602 words) [view diff] exact match in snippet view article find links to article
have a natural satellite. Ida's orbit lies between the planets Mars and Jupiter, like all main-belt asteroids. Its orbital period is 4.84 years, and its
SES-3 (203 words) [view diff] exact match in snippet view article find links to article
satellite operated by SES World Skies, then by SES S.A. SES-3 was built by Orbital Sciences Corporation (OSC), and is based on the Star-2.4 satellite bus
38P/Stephan–Oterma (229 words) [view diff] exact match in snippet view article find links to article
38P/Stephan–Oterma (also known as Comet Stephan–Oterma) is a periodic comet with an orbital period of 38 years. It fits the classical definition of a Halley-type comet
Satellite Internet access (7,601 words) [view diff] exact match in snippet view article find links to article
new satellite internet constellations are being developed in low-earth orbit to enable low-latency internet access from space. Following the launch of
Chang'e 4 (5,105 words) [view diff] exact match in snippet view article find links to article
A communication relay satellite, Queqiao, was first launched to a halo orbit near the Earth–Moon L2 point in May 2018. The robotic lander and Yutu-2
Solar sail (10,233 words) [view diff] exact match in snippet view article find links to article
pressure affects all spacecraft, whether in interplanetary space or in orbit around a planet or small body. A typical spacecraft going to Mars, for example
BioSentinel (1,163 words) [view diff] exact match in snippet view article find links to article
impact of deep space radiation on DNA repair over long time beyond low Earth orbit. Selected in 2013 for a 2022 launch, the spacecraft will operate in the
40P/Väisälä (363 words) [view diff] exact match in snippet view article find links to article
40P/Väisälä is a periodic comet that was discovered on February 8, 1939. Its orbit was determined on April 26, 1939. In 1994, the diameter of its nucleus was
PAS-22 (870 words) [view diff] exact match in snippet view article find links to article
satellite, which was salvaged from an unusable geosynchronous transfer orbit (GTO) by means of the Moon's gravity. AsiaSat 3 was launched for AsiaSat
Caesar's Comet (1,917 words) [view diff] exact match in snippet view article find links to article
and Rome (July 23), an infinite number of orbit determinations can fit the observations, but a retrograde orbit is inferred based on available notes. The
Comet Shoemaker–Levy 9 (5,370 words) [view diff] exact match in snippet view article find links to article
Levy in 1993. Shoemaker–Levy 9 (SL9) had been captured by Jupiter and was orbiting the planet at the time. It was located on the night of March 24 in a photograph
Hot Jupiter (4,824 words) [view diff] exact match in snippet view article find links to article
inferred to be physically similar to Jupiter but that have very short orbital periods (P < 10 days). The close proximity to their stars and high surface-atmosphere
SPOT (satellite) (1,169 words) [view diff] exact match in snippet view article
launched on June 30, 2014. The SPOT orbit is polar, circular, sun-synchronous, and phased. The inclination of the orbital plane combined with the rotation
Satellite phone (2,985 words) [view diff] exact match in snippet view article find links to article
that connects to other phones or the telephone network by radio through orbiting satellites instead of terrestrial cell sites, as cellphones do. The advantage
Intelsat 23 (499 words) [view diff] exact match in snippet view article find links to article
Africa. It is in a geosynchronous orbit located at 307° east and will replace Intelsat 707. It was built by Orbital Sciences and has a designed life of
Artemis 1 (4,531 words) [view diff] exact match in snippet view article find links to article
will be sent on a mission of 25.5 days, 6 of those days in a retrograde orbit around the Moon. The mission will certify the Orion spacecraft and Space
Human mission to Mars (9,835 words) [view diff] exact match in snippet view article find links to article
conducted by Mariner 9 and Viking 1 and two orbiters, which supported the Viking landers. Later orbiters, such as Mars Global Surveyor, 2001 Mars Odyssey
N1 (rocket) (7,422 words) [view diff] exact match in snippet view article
heavy-lift launch vehicle intended to deliver payloads beyond low Earth orbit. The N1 was the Soviet counterpart to the US Saturn V and was intended to
Methods of detecting exoplanets (13,601 words) [view diff] exact match in snippet view article find links to article
billion times as bright as the reflected light from any of the planets orbiting it. In addition to the intrinsic difficulty of detecting such a faint light