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• Orbit
  ...t|400px|The [[Planets|planets]] depicted orbiting around the [[Sun]]. One orbit of the Earth around the Sun lasts a year.}} An '''orbit''' is a (nearly) closed or repeating path
  3 KB (423 words) - 19:29, 18 July 2021
• Orbit/Definition
  ...>https://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-orbit-58.html</ref> traveled by one object around another due to the force of gra
  419 bytes (64 words) - 18:16, 18 August 2020
• Earth orbit
  81 bytes (10 words) - 06:51, 8 January 2024
• Orbit/Related Articles
  == Some articles that refer to Orbit ==
  788 bytes (113 words) - 11:59, 31 December 2022
• Earth orbit/Definition
  139 bytes (20 words) - 22:24, 22 May 2008

Page text matches

• Near-Earth object/Definition
  ...eroid, whose orbit brings it into close proximity with the Earth, or whose orbit crosses that of Earth.
  189 bytes (30 words) - 06:49, 12 September 2009
• Kennedy Space Center/Definition
  ..., principally those not in [[satellite orbits#polar orbit|polar or Moliyna orbit]]; supported by [[Patrick Air Force Base]]
  392 bytes (57 words) - 14:30, 19 March 2023
• Lagrange points
  ...this is less cumbersome that talking about a "smaller celestial object in orbit about a larger celestial object." ...ut the center of mass of the two celestial objects, with the period of the orbit equal to that of the planet.
  1 KB (240 words) - 19:04, 30 August 2021
• Suborbital
  ...ne cuts off, will intersect the earth rather than fly high enough to enter orbit. ...borbital flights are intended to test vehicles that are planned to go into orbit on later flights. There have also been suborbital flights that fired additi
  1 KB (156 words) - 01:25, 27 July 2008
• CANYON satellite/Definition
  High-orbit U.S. [[communications intelligence]] satellite
  93 bytes (9 words) - 22:19, 28 February 2011
• Satellite/Definition
  An object that travels in orbit around a more massive body.
  95 bytes (14 words) - 16:24, 23 May 2008
• Orbit/Related Articles
  == Some articles that refer to Orbit ==
  788 bytes (113 words) - 11:59, 31 December 2022
• Asteroid/Definition
  <noinclude>{{Subpages}}</noinclude>Small, rocky bodies that orbit the Sun but have no atmosphere.
  97 bytes (14 words) - 23:36, 15 October 2011
• Ecliptic/Definition
  Great circle that apparent orbit of Sun makes on celestial sphere.
  102 bytes (14 words) - 11:32, 29 October 2008
• Hubble Space Telescope/Definition
  A [[telescope]] in [[orbit]] around the [[Earth]] that has made many important astronomical observatio
  141 bytes (17 words) - 23:26, 22 May 2008
• Space debris/Definition
  Man-made objects in earth orbit that no longer serve any useful purpose.
  108 bytes (15 words) - 16:42, 20 May 2008
• Comet/Definition
  ...{Subpages}}</noinclude>A ball of gas and ice that hurtles in an elliptical orbit around the Sun.
  108 bytes (18 words) - 13:25, 10 February 2012
• Orbit
  ...t|400px|The [[Planets|planets]] depicted orbiting around the [[Sun]]. One orbit of the Earth around the Sun lasts a year.}} An '''orbit''' is a (nearly) closed or repeating path
  3 KB (423 words) - 19:29, 18 July 2021
• NEO (disambiguation)
  {{rpl|Near Earth Orbit}}
  79 bytes (9 words) - 20:33, 26 September 2013
• Bohr radius/Definition
  Radius of the first Bohr orbit in the hydrogen atom.
  88 bytes (13 words) - 08:45, 29 August 2009
• International Space Station/Definition
  A space station currently in earth orbit assembled collaboratively by the space agencies of many nations.
  141 bytes (19 words) - 16:10, 23 May 2008
• Suborbital/Definition
  ...hat takes it into [[outer space]], but does not achieve [[satellite orbits|orbit]] or Earth escape velocity
  186 bytes (27 words) - 01:28, 27 July 2008
• Space debris/External Links
  ...t Ford] An article describing a project to scatter tiny copper antennas in orbit. ...com/SOCRATES SOCRATES] A free daily service predicting close encounters on orbit between satellites and the thousands of rocket bodies and other pieces of d
  991 bytes (141 words) - 16:09, 13 November 2007
• Space launch vehicle/Definition
  ...into [[outer space]]; it may return, go into [[satellite orbits|satellite orbit]], or into an [[escape trajectory]]. Ballistic missiles are excluded
  237 bytes (32 words) - 12:48, 26 July 2008
• Vostok 1/Definition
  ...into space; flown by cosmonaut Yuri Gagarin on 12th April 1961 on a single orbit of Earth in a mission lasting 108 minutes.
  215 bytes (33 words) - 13:18, 4 November 2013
• Milankovitch cycles/Definition
  cycles in the Earth's orbit that effect the amount of solar radiation striking the Earth at different t
  156 bytes (24 words) - 07:01, 20 January 2009
• Sputnik/Definition
  ...on, the first of these, Sputnik 1, launched the first human-made object to orbit the Earth, which took place on 4 October 1957.
  228 bytes (32 words) - 07:46, 12 September 2009
• Hopkins Ultraviolet Telescope/Definition
  ...in the far-ultraviolet region of the electromagnetic spectrum, flown into orbit on the Space Shuttle in December 1990, and in March 1995.
  234 bytes (30 words) - 06:11, 12 September 2009
• Ecliptic
  ...g. 2. [[Image:Orbit Earth.png|right|thumb|350px||Fig. 2. The Earth in its orbit around the Sun. The arrow on the Earth indicates the angle between the Eart
  2 KB (333 words) - 05:31, 24 March 2010
• Geostationary Operational Environmental Satellite/Definition
  ...nfrared imaging of earth atmosphere from [[satellite orbits|geosynchronous orbit]]; they carry secondary payloads in the [[COSPAS-SARSAT]] satellite constel
  283 bytes (35 words) - 12:13, 28 June 2009
• UHF Follow-On (satellite)
  ...ite)]]. They are in [[satellite orbits#geosynchronous orbit|geosynchronous orbit]].
  1 KB (150 words) - 10:20, 8 April 2024
• Hill sphere
  ...radius) is the maximum distance a satellite can be from a planet and still orbit the planet. ...force from Earth must dominate that of the Sun in order for a satellite to orbit it, which only happens if the satellite is close enough to Earth.
  6 KB (1,003 words) - 20:54, 29 August 2021
• Kuiper belt
  ...on miles)—30 and 50 AU— from the Sun. Most of these trans-Neptunian bodies orbit the Sun within a thick band around the ecliptic plane of the solar system. ...belt of icy bodies orbiting the Sun beyond Neptune. There are comets that orbit through the solar system every half-dozen years or so. They last a few thou
  3 KB (556 words) - 15:10, 2 December 2010
• Kepler's laws
  # The [[orbit]] of a planet is [[ellipse|elliptical]], with the sun at one of the two foc ...rectly proportional to the cube of the semi-major axis of its (elliptical) orbit.
  824 bytes (139 words) - 16:49, 16 January 2022
• Jet Propulsion Laboratory/Definition
  ...oncerned with the design and operation of deep space missions beyond Earth orbit
  296 bytes (38 words) - 15:30, 8 March 2023
• Didymos
  ...idymos' orbital location varies between Earth orbit and just outside Mars' orbit. Didymos orbits the [[Sun]] in an elliptical orbit, with a nearest and farthest distance from the sun of about 1 AU and about
  2 KB (224 words) - 17:47, 13 June 2022
• Sphere (geometry)
  ...more strongly influenced by the Sun's gravitational pull than Earth's, and orbit the Sun instead.
  1 KB (246 words) - 07:18, 12 August 2021
• Kuiper belt/Definition
  Region of the Solar System extending from the orbit of Neptune (at 30 AU) to approximately 55 AU from the Sun, containing thous
  286 bytes (43 words) - 06:24, 12 September 2009
• Moon/Definition
  a naturally-occurring [[satellite]] that is in [[orbit]] around a [[planet]]; ''the'' moon is the [[Earth (planet)|Earth's]] only
  176 bytes (22 words) - 10:36, 22 February 2023
• Polar Operational Environmental Satellite/Definition
  ...des nonimaging and environmental information from [[satellite orbits|polar orbit]], for applications including weather, forest fire and volcanic alerts, veg
  415 bytes (48 words) - 12:46, 28 June 2009
• COSPAS-SARSAT/Definition
  ...ite orbits#geosynchronous|geosynchronous]] or [[satellite orbits#low earth orbit|low earth orbits]], receiving stations, and [[search and rescue]] mission c
  358 bytes (44 words) - 21:25, 4 January 2009
• Asteroid
  An '''asteroid''' is any one of many rocky, metallic bodies that orbit the [[Sun]] but have no [[atmosphere]] and are too small to be classed as [ The [[Kuiper belt]], beyond the orbit of the [[Planet Neptune]], is also believed to contain tens of thousands of
  1 KB (207 words) - 16:01, 2 August 2020
• Astronomical Unit
  ...9895.</ref> Since an AU is based on the radius of a circular orbit and the orbit of the Earth is actually elliptical,<ref>an asymmetrical oval</ref> one AU ...surement unit for describing the distance between the Sun and objects that orbit it, such as planets, dwarf planets, comets, and asteroids. For objects outs
  4 KB (618 words) - 15:00, 10 January 2021
• COSPAS-SARSAT
  ...while the other is in [[satellite orbits#geostationary orbit|geostationary orbit]]. Since the LEOSAT constellation spiral in a "ball of twine" orbit around the earth, they do provide polar coverage. Since they move in relat
  3 KB (449 words) - 10:42, 8 April 2024
• Group action
  The '''orbit''' of any ''x'' in ''X'' is the subset of ''X'' which can be "reached" from If ''x'' and ''y'' are in the same orbit, their stabilisers are [[conjugate]].
  4 KB (727 words) - 12:37, 16 November 2008
• Space Race/Timelines
  ||Animal in orbit (dog) ||[[Yuri Gagarin|Human in orbit]]
  3 KB (456 words) - 11:20, 10 February 2023
• Atmospheric reentry
  ...intact. Vehicles that undergo this process include [[spacecraft]] from [[orbit]], as well as [[suborbital]] [[ballistic missile]] '''reentry vehicles'''.
  545 bytes (70 words) - 11:47, 31 December 2022
• Space debris/Related Articles
  {{r|Earth orbit}}
  356 bytes (47 words) - 06:41, 8 January 2024
• Bohr radius
  ...electron]] circulating the hydrogen [[nucleus]]. Today the radius of this orbit is called the '''Bohr radius'''. It is usually indicated by ''a''<sub>0</
  1 KB (231 words) - 08:53, 14 September 2013
• USS Long Beach (CGN-9)
  ...ne.jpg|thumb|300px|right|{{TaskForce One.jpg/credit}}<br />Operation ''Sea Orbit'': On July 31, [[USS Enterprise (CVN-65)|USS ''Enterprise'' (CVAN-65)]] (bo
  498 bytes (67 words) - 23:40, 13 June 2013
• Niels Bohr
  ...emitting a [[photon]] of discrete energy, or conversely move from an inner orbit to an outer one, absorbing energy. This also became the basis for quantum t
  3 KB (472 words) - 07:32, 20 April 2024
• Apollo program/Gallery
  ...trong are in the Lunar Module. Astronaut Michael Collins remained in lunar orbit with the Command Module to await return of Aldrin and Armstrong.}} ...trong are in the Lunar Module. Astronaut Michael Collins remained in lunar orbit with the Command Module to await return of Aldrin and Armstrong.}}
  5 KB (757 words) - 11:35, 27 June 2011
• Dimorphos
  ...an orbital location that varies between Earth orbit and just outside Mars' orbit.
  2 KB (262 words) - 14:07, 4 May 2023
• California Institute of Technology
  ...arch and operations center concerned with deep space missions beyond Earth orbit.
  616 bytes (90 words) - 15:28, 8 March 2023
• SpaceX
  * [[Falcon 1]] - A two stage to orbit rocket using one Merlin engine on the first stage. *Flight 4, reached orbit
  4 KB (503 words) - 08:17, 8 July 2009
• Ptolemy
  ...five planets known at the time (Mercury, Venus, Mars, Jupiter, and Saturn) orbit the Earth. ...s ([[epicycles]]) and that the centers of the epicycle move in a circular orbit (the deferent) around the Earth. With this model he was able to predict the
  3 KB (473 words) - 12:03, 6 December 2020
• Galileo probe
  ...of [[Venus (planet)|Venus]] and [[Earth]]. It was the first spacecraft to orbit Jupiter. In 2003, the spacecraft was deliberately sent into Jupiter's atmo
  593 bytes (87 words) - 21:55, 31 December 2022
• Earth (planet)/Related Articles
  {{rpl|Near Earth Orbit}}
  684 bytes (87 words) - 13:46, 21 November 2022
• Hund's rules
  ...coupling it is useful to diagonalize the matrix of the corresponding spin-orbit operator within the ''L-S'' basis [consisting of the (2''L''+1)×(2''S''+1) ...good quantum numbers). Then splittings after switching on first-order spin-orbit coupling (''J'' good quantum number). Finally on the right [[Zeeman]] split
  4 KB (593 words) - 09:31, 25 October 2009
• Dwarf planet
  *(a) is in orbit around a Sun; *(c) has cleared the neighborhood around its orbit.
  5 KB (825 words) - 05:19, 18 December 2020
• TIC 168789840
  ...ies, while the orbit of the third pair of binary stars took 2,000 years to orbit the barycenter.<ref name=nytimes2021-01-23/><ref name=SciNews2021-01-25/><r ...ystems orbit each other roughly every day and a half, and the two binaries orbit each other about every four years. The B binary’s members circle each oth
  7 KB (854 words) - 14:25, 2 February 2023
• Gamma Andromedae
  ...roughly 2.000 times that of the sun. The star is large enough to fill the orbit of Venus if it were in the sun's position.<ref name="Kaler" /> ...itself a double system with the stars an average of 0.3ˡˡ apart. The stars orbit each other every 63 years or so. Both stars are [[main sequence]] dwarfs. T
  2 KB (332 words) - 18:10, 29 May 2008
• Pluto (dwarf planet)
  ...e [[Sun]], taking 248.1 [[Earth]] years to complete one (admittedly odd) [[orbit]]. Like many other worlds in the region, it hosts [[natural satellite|moons ==Orbit and size==
  6 KB (989 words) - 08:07, 10 January 2021
• GALEX
  ...April 28]], 2003. A [[Pegasus rocket]] placed GALEX into a nearly circular orbit at an [[altitude]] of 697 [[kilometre|km]] (432 [[Mile|miles]]) and an [[in
  2 KB (315 words) - 13:38, 26 September 2007
• Spacecraft
  ...igned to fly in space. Normally this would apply to vehicles that reach [[orbit]], or travel beyond the Earth. However, '''spacecraft''' is also used to d ===Earth Orbit Satellites===
  4 KB (410 words) - 11:51, 31 December 2022
• Atomic units/Related Articles
  {{r|Reduced period of first Bohr orbit}} ℏ/Eh time 2.418 884 326 505(16) × 10−17 s
  683 bytes (86 words) - 05:29, 11 September 2011
• Conjugacy
  ...s [[group action]] of ''G'' on itself, and the conjugacy classes are the [[orbit]]s of this action.
  802 bytes (124 words) - 01:13, 18 February 2009
• Outer space
  ...issile]]s, whose trajectory goes through outer space, but does not achieve orbit. ...yer of the atmosphere and it is in this layer that our man-made satellites orbit the Earth. From this layer, atoms and molecules escape into the void of spa
  7 KB (1,143 words) - 19:29, 31 August 2009
• Comet
  ...ce]], [[gas]] and dust, and has a highly eccentric, [[ellipse|elliptical]] orbit around the [[Sun]]. Comets become visible as they approach the Sun and can
  856 bytes (132 words) - 15:36, 18 August 2020
• Defense Satellite Communications System
  DSCS satellites are in [[satellite orbits|geosynchronous orbit (GEO)]], and have six [[ITU frequency bands|Super High Frequency (SHF)]] co
  951 bytes (130 words) - 10:20, 8 April 2024
• Parallax
  ...n the angle between the plane of this ellipse and the plane of the Earth's orbit. The parallax angle &alpha; is used as a measure of distance: 1<nowiki>''</
  3 KB (470 words) - 12:45, 11 June 2009
• Space launch vehicle
  ...r [[satellite orbits|orbital]] path, or into an escape velocity from Earth orbit. The term explicitly excludes [[ballistic missile]]s used as weapons, in pa
  1,017 bytes (158 words) - 19:03, 31 January 2009
• Weight
  ...or objects to either pick up speed as they fall vertically, or maintain an orbit rather than travel in a straight line away from the planet. However, for a * As mentioned already, a person or object in vertical freefall or in orbit around a planet has zero apparent weight. A scale under the person or objec
  5 KB (793 words) - 07:03, 31 July 2022
• Neptune (planet)
  ...Galileo did record it as a fixed star in 1612 and 1613. Aberrations in the orbit of Uranus led French mathematician and astronomer Urbain Joseph Le Verrier ...d of 20 years, the orbit of [[Pluto (dwarf planet)|Pluto]] lies within the orbit of Neptune.<ref name=NASASSENeptune/>
  6 KB (904 words) - 19:12, 9 January 2021
• Global Positioning System
  ...inimum of 24 by satellites in full operation capability (FOC) status that orbit in six different planes. The exact number of satellites varies as satellite ...proximately 20,000 km with an inclination of 55 degrees, making a complete orbit in approx. 11 hours, 58 minutes. All Satellites are dual-frequency, in the
  5 KB (756 words) - 11:12, 24 August 2010
• Jupiter (planet)
  ...ded that, to be called a planet, an object must have three traits. It must orbit the sun, be massive enough that its own gravity pulls it into a nearly roun *Has mass sufficient for gravity to clear a path in its orbit.
  6 KB (921 words) - 08:26, 10 January 2021
• Tychonic system
  In his model, the Sun place is the centre of the [[orbit]]s of five [[planet]]s ([[Mercury]], [[Venus]], [[Mars]], [[Jupiter]], and
  1 KB (162 words) - 09:00, 8 June 2009
• Satellite
  ...[spaceflight]], '''satellites''' are objects which have been placed into [[orbit]] by human endeavor. They are sometimes called '''artificial satellites'''
  1 KB (125 words) - 14:12, 2 February 2023
• Lunar eclipse
  ...ould happen every month, as the Moon orbits the Earth; however, the Moon's orbit has a slight wobble so most months it is either too high or too low to be
  983 bytes (175 words) - 16:46, 7 December 2008
• Philae (comet lander)
  ...osetta (comet orbiter)|Rosetta]]'' spacecraft, which took up a position in orbit of comet [[67P/Churyumov–Gerasimenko]] prior to releasing the lander.
  1 KB (197 words) - 15:07, 10 December 2014
• USS Enterprise (CVN-65)
  ...ne.jpg|thumb|300px|right|{{TaskForce One.jpg/credit}}<br />Operation ''Sea Orbit'': On July 31, 1964 USS ''Enterprise'' (CVAN-65) (bottom), [[USS Long Beach
  1 KB (152 words) - 15:41, 8 April 2024
• Valery Menshikov
  ...launched into orbit almost a year ago. The satellite can now move from one orbit to another with the help of the engine, which discharges no reaction mass. </i></ref>. Menshikov claims that the device moves the satelite <i>from one orbit to another with the help of the engine, which discharges no reaction mass.<
  6 KB (486 words) - 21:37, 9 September 2020
• Maximov Space Systems Research Institute
  ...e perpetual motion machine [[Gravitsapa]] that was launched into the Earth orbit in 2008 and advertised in mass media as a great achievement of Russian scie ...launched into orbit almost a year ago. The satellite can now move from one orbit to another with the help of the engine, which discharges no reaction mass./
  5 KB (647 words) - 08:33, 9 September 2020
• Viking 1
  ...19 June 1976 and trimmed to a 1513 x 33,000 km, 24.66 h site certification orbit on [[21 June]]. Landing on Mars was planned for [[July 4]], 1976, the [[Uni ...gust 1980 Viking 1 Orbiter was running low on altitude control gas and its orbit was raised from 357 × 33943 km to 320 × 56000 km to prevent impact with M
  6 KB (935 words) - 07:34, 9 June 2009
• Apollo 13 (mission)
  ...cursion Module (LEM), which became accessible to the crew after launch and orbit; the airlock of the CM mated with that of the LEM.
  1 KB (186 words) - 04:39, 26 October 2013
• Defense Support Program
  ...ystem (SBIRS), one in satellite orbits#geosynchronous orbit|geosynchronous orbit as is DSP <ref name=>{{citation
  3 KB (494 words) - 12:18, 22 March 2024
• Milankovitch cycles
  .... D., John Imbrie, and N. J. Shackleton (1976). "Variations in the Earth's Orbit: Pacemaker of the Ice Ages". Science 194 (4270): 1121 - 1132.</ref> This th ...etting closer to the mid-interglacial peak, as the eccentricity of Earth's orbit will be almost halved, reducing the mean orbital radius.
  10 KB (1,472 words) - 08:34, 8 June 2009
• Uranus (planet)
  ...to be a [[comet]]. Upon tracking it for some time, he calculated that its orbit was nearly circular and, on that basis, concluded that it was a previously ...parently by a yet more distant object. Based on these perturbations in the orbit of Uranus, the approximate location of the hypothetical planet responsible
  8 KB (1,202 words) - 08:50, 10 January 2021
• Chinese Space Plane
  ...were {{convert | 332 | km | mi}} and {{convert | 348 | km | mi}}, and its orbit was titled 50.2 degrees to the equator.<ref name=spaceflightnow2020-09-08/> ...l = https://www.bollyinside.com/news/chinas-spacecraft-is-still-in-orbit-but-information-is-emerging-from-recovered-launch-debris
  10 KB (1,338 words) - 12:50, 10 February 2023
• Microsatellite cluster
  ...rrect for inaccuracies by using observations from multiple points in their orbit. In a sense, this is the reverse of [[radar#synthetic aperture radar|synthe ...overall cost would, in turn, give the opportunity to have more payloads in orbit or that could quickly be orbited, increasing flexibility of deployment.
  4 KB (536 words) - 06:04, 8 April 2024
• Colin Burgess/Bibliography
  * ''Oceans to Orbit: The Story of Australia's First Man in Space, Paul Scully-Power'', 1995
  1 KB (198 words) - 20:01, 14 September 2013
• Genesis probe
  ...tion/wlagran.html Further detail about Lagrangian points</ref>. During its orbit the craft collected solar wind samples during specific time periods when th
  4 KB (653 words) - 09:37, 8 August 2023
• Moon
  |Orbit distance around the Earth||2.4134×10⁶ km |Orbit velocity around the Earth||1.0224 km/s
  18 KB (2,977 words) - 10:50, 22 February 2023
• Global Navigation Satellite System
  ...proximately 20,000 km with an inclination of 55 degrees, making a complete orbit in approx. 11 hours, 58 minutes. All Satellites are dual-frequency and broa ...e orbital planes with an inclination of 64.8 degrees. They make a complete orbit in approx. 11 hours, 15.5 minutes. All satellites broadcast L1 and L2 signa
  10 KB (1,543 words) - 10:07, 28 February 2024
• Mercury (planet)
  ...ded that, to be called a planet, an object must have three traits. It must orbit the sun, be massive enough that its own gravity pulls it into a nearly roun *Has mass sufficient for gravity to clear a path in its orbit.
  4 KB (617 words) - 12:36, 9 January 2021
• International Ultraviolet Explorer
  <th align="left">Orbit height</th><td>42,000 km apogee, 26,000 km perigee</td> ...align="left">Orbit period</th><td>One day ([[geosynchronous|geosynchronous orbit]])</td>
  7 KB (1,076 words) - 09:16, 6 March 2024
• STS-4
  ...e coating of some of the tiles. The water however did not freeze while in orbit because the water vaporized as the affected area was turned toward the sun.
  2 KB (223 words) - 21:10, 27 October 2007
• NewSpace
  ...by [[SpaceX]] hopes to be the first privately funded first rocket to reach orbit
  2 KB (204 words) - 09:29, 14 September 2013
• Earth (planet)
  ...harbour [[life]]. It is the third [[planet]] out from its [[sun]]. Earth [[orbit]]s around 93 million [[mile]]s (150 million km) from the sun, within a regi
  2 KB (275 words) - 19:38, 9 January 2021
• Benjamin Peirce
  ...espected theoretical astronomer who performed some significant work on the orbit of the newly discovered (1846) planet [[Neptune]]. ...ons which resulted in a wrong orbit; Peirce because he accepted this wrong orbit as mathematically valid, and from it derived a second solution. Le Verrier
  8 KB (1,209 words) - 08:09, 28 September 2013
• Satellite communications
  ...nic relay(s), most often artificial satellites in [[satellite orbits|Earth orbit]]. The article is not titled "communications satellite", since many applica
  2 KB (255 words) - 10:05, 10 February 2023
• Parsec
  ...''pc''') is the distance at which the [[parallax]] relative to the earth's orbit of an object is equal to one [[arc second]], or alternatively, the distance
  2 KB (249 words) - 14:20, 10 January 2021
• Planet
  ...rnational Astronomical Union]] (IAU), a '''planet''' is a celestial body [[orbit]]ing a [[star]] or [[Stellar evolution#Stellar remnants|stellar remnant]] t Bodies that [[Orbit|orbit]] the Sun and are rounded by their own gravity, but have not cleared the ne
  12 KB (1,829 words) - 10:07, 10 January 2021
• Near-Earth object
  ...ted to impact the Earth. One option is to develop some scheme to alter the orbit of the NEO. As Earth moves through its own diameter every six minutes, the
  2 KB (327 words) - 16:28, 13 March 2009
• Long Lehao
  ...ted 375 launches and stressed that the accuracy of putting satellites into orbit and the number of launch times are all first-class in the world.
  4 KB (329 words) - 13:08, 22 August 2022
• Space debris
  ...bris is a risk to both manned and unmanned spaceflight. Because objects in orbit travel at very high velocities, they release large amounts of energy in a c ...bjects in LEO.jpg|thumb|right|300px|Distribution of objects in [[low earth orbit]]]]
  19 KB (2,906 words) - 18:26, 25 August 2020
• Chen Hongbo
  | quote = The reusable launch vehicle can carry large payloads into orbit, return to the earth and be reused many times, said Chen Hongbo, director o ...Force's X-37B, an autonomous spaceplane made by Boeing that can remain in orbit for long periods of time before flying back to Earth on its own.
  7 KB (815 words) - 04:47, 12 February 2024
• Principal quantum number
  ...in the length ''a''_''n'' of the semi-major axis of the ''n''th orbit, ...a hydrogen-like atom satisfies the exact same equation, but the electron ''orbit'' is replaced by an [[atomic orbital|electron ''orbital'']]; the latter ha
  5 KB (873 words) - 15:11, 15 May 2022
• Alpha Andromedae
  ...ponent of magnitude 2.06 and a companion star of magnitude 11.4. The stars orbit each other with a period of 96.7 days.<ref>''The Washington Visual Double S
  2 KB (285 words) - 17:19, 29 May 2008
• L5 Society
  ...points of stable gravitational equilibrium located just inside the Moon's orbit at equal distances from both the Earth and the Moon. An object placed in orbit around L5 (or L4) will remain there indefinitely without having to expend f
  5 KB (746 words) - 20:52, 29 August 2021
• Dark matter
  ...mass that exerts the gravity necessary to hold the galaxy in such a stable orbit pattern. Further, her work led her to posit that 90% of the universe is mad
  10 KB (1,526 words) - 19:36, 18 August 2020
• Volcanically active worlds
  ...ivity, you would need to visit Io or Triton, [[natural satellite|moon]]s [[orbit]]ing [[Jupiter]] and [[Neptune]] respectively. However, it has recently bee
  2 KB (366 words) - 08:39, 6 June 2009
• Johannes Kepler
  ...the Martian orbit. It took Kepler eight years to discover that an elliptic orbit was needed to fit these data. In 1612 Kepler accepted a position in [[Linz] ...esulting from the action of physical causes expressed in laws of nature). "Orbit" was introduced into astronomy by Kepler in his ''Astronomia Nova'' (1609).
  8 KB (1,261 words) - 18:46, 9 August 2010
• Year
  ...as a consequence, the Earth completes this year before it completes a full orbit as measured in a fixed reference frame. Therefore a tropical year is shorte
  6 KB (968 words) - 01:12, 14 February 2010
• Black Sheep (Heyer novel)
  ...her niece from this hazard without alienating her, Abigail comes into the orbit of the London buck's older uncle, who while not a fortune hunter, has a che
  2 KB (364 words) - 09:02, 14 March 2024
• Ionizing radiation
  ...n interaction with an atom, it can remove tightly bound electrons from the orbit of an atom, causing the atom to become charged or ionized.<ref name=WHOion>
  3 KB (377 words) - 09:43, 29 March 2024
• Cyclic order
  This gives rise to a cyclic order if (and only if) for some element ''s'' the orbit under &sigma; is the whole set ''S'':
  2 KB (361 words) - 21:13, 6 January 2011
• TOI-561
  ...ta by both papers, Weiss proposes only a single third planet in a 16.3-day orbit, while Lacedelli argues that the system instead contains two further planet ...riod of 16 days on ExoFOP, but Lacedelli could not detect a planet in that orbit using radial velocity data from HARPS, and instead interpreted it as two se
  13 KB (1,765 words) - 11:12, 23 July 2022
• Galaxy rotation curve
  ...bution of the galaxy. A test particle of mass <math>m</math> on a circular orbit with radius <math>r</math> with velocity <math>v</math>, has an inward acce ...ibution would decrease inversely with the square root of the radius of the orbit (the dashed line in Fig. 1). At the time of the discovery of the discrepanc
  10 KB (1,575 words) - 06:30, 9 June 2009
• Russell's teapot
  ...and Mars there is a china teapot revolving about the sun in an elliptical orbit, nobody would be able to disprove my assertion provided I were careful to a
  3 KB (456 words) - 16:42, 27 July 2010
• Electron orbital
  ...rd as well, although he was the first to recognize (1913) that an electron orbit is not a trajectory, but a stationary state of the hydrogen atom.
  10 KB (1,514 words) - 19:38, 20 November 2009
• National Reconnaissance Office
  ..., JUMPSEAT/TRUMPET satellites were in [[satellite orbits#highly elliptical orbit|Moliyna]] orbits giving better polar coverage. <ref name=TalinnPSI>{{citati From 1972 to 1989, [[satellite orbits#low earth orbit|low earth orbit]] SIGINT satellites were launched only as secondary payloads with [[KH-9]]
  16 KB (2,303 words) - 06:04, 8 April 2024
• Black Dog/Catalogs
  * 2008: Ted Kooshian (''Ted Kooshian's Standard Orbit Quartet'')
  2 KB (289 words) - 08:13, 24 October 2009
• Electron shell
  ...nant]]s and that closed-shell Slater determinants are invariant under the orbit and spin rotation groups, SO(3) and SU(2), respectively.
  3 KB (430 words) - 13:54, 3 March 2023
• Perpetual motion machine
  ...launched into orbit almost a year ago. The satellite can now move from one orbit to another with the help of the engine, which discharges no reaction mass."
  7 KB (1,041 words) - 13:05, 15 October 2010
• Sirius
  ...ously noted. Further observations confirmed Sirius B’s binary nature in an orbit with a period of about 50 years and at a distance from Sirius A of about 20
  3 KB (385 words) - 04:24, 7 October 2013
• Valentina Tereshkova
  ...she had had to keep what she was doing from her family. Tereshkova reached orbit and exchanged brief communications with Bykovsky as they brought their spac
  3 KB (466 words) - 13:17, 5 November 2013
• Year/Student Level
  ...as a consequence, the Earth completes this year before it completes a full orbit as measured in a fixed reference frame. Therefore a tropical year is shorte
  7 KB (1,171 words) - 00:02, 14 February 2010
• Russell-Saunders coupling
  ...ble [[block diagonalization]] of the matrix of a Hamiltonian in which spin-orbit coupling is absent. ...evant in calculations where both interactions&mdash;electrostatic and spin-orbit&mdash;are included on equal footing.
  22 KB (3,334 words) - 05:36, 6 March 2024
• Foucault pendulum
  ...arge amplitude, and the wire will stretch as the bob descends, meaning the orbit is not a circle. That complicates the analysis without adding to any insigh ...accounts for the Earth observation of a daily precession of the pendulum's orbit.
  12 KB (2,156 words) - 12:50, 6 March 2011
• Light year
  ...defined as the time for the [[Earth]] to complete one revolution of its [[orbit]] of the Sun, there are still several definitions depending on the frame of
  3 KB (367 words) - 20:56, 1 September 2020
• Reactionless propulsion
  ...launched into orbit almost a year ago. The satellite can now move from one orbit to another with the help of the engine, which discharges no reaction mass. ...8, the four inertioids were designed, manufactured and launched into Earth orbit by the [[Khrunichev State Research and Production Space Center]] and its br
  10 KB (1,424 words) - 12:41, 8 June 2011
• NGC 7089
  Messier 2 follows a highly elongated (e=0.76) orbit around the Milky Way Galaxy taking it from between 23.500 light years to up
  3 KB (450 words) - 11:11, 19 June 2008
• Sputnik
  ...nion'). Sputnik 1 was the first artificial satellite to achieve geocentric orbit, and was launched on October 4th 1957. Its more formal name was ''Object PS
  3 KB (489 words) - 19:13, 15 October 2013
• Ernest Rutherford
  ...ith a positive charge and electrons filled the bulk of the atom's space in orbit around the nucleus. ...must by definition be accelerating as they orbit if they are to remain in orbit. In the process of accelerating they must also necessarily radiate energy.
  10 KB (1,594 words) - 09:11, 12 October 2013
• Project Mercury
  |'''Orbit:''' || 2,986 lb || 1,354 kg ...program]]. It ran from 1959 through 1963 with the goal of putting a man in orbit around the Earth. Early planning and research was carried out by [[Nationa
  18 KB (2,573 words) - 14:08, 2 February 2023
• Copernicus - Orbiting Astronomical Observatory-3
  The Copernicus satellite was launched into a nearly circular 7123 km radius orbit, inclined at 35 degrees, on 21 August 1972. The main experiment was an [[ul
  3 KB (435 words) - 07:27, 26 September 2007
• Velocity
  If forces are in radial direction only, as in the case of a gravitational [[orbit]], angular momentum is constant, hence transverse speed is inversely propor
  4 KB (723 words) - 00:50, 1 November 2009
• Apollo program
  ...wn in space—less than a month earlier—and NASA had not yet sent a man into orbit. Some NASA employees disbelieved whether Kennedy's ambitious goal could be ...ave enabled the spacecraft to escape Earth orbit. After a docking in Earth orbit, the spacecraft would have landed on the Moon as a unit.
  31 KB (4,868 words) - 10:47, 9 September 2023
• Polynomial equation
  ...ing the existence of the five [[Lagrange points]] in the vicinity of two [[orbit]]ing [[mass]]es.
  4 KB (647 words) - 16:35, 22 December 2008
• Fisheries monitoring surveillance and control
  ...s#low earth orbit|low earth orbits]] and [[satellite orbits#geosynchronous orbit|geosynchronous orbits]] are the backbone of VMS communications with FMCs. R
  9 KB (1,282 words) - 10:13, 24 August 2010
• Gorgonopsia
  ...nout strongly convex, lateral face of snout strongly constricted dorsally, orbit small, temporal opening high, septomaxilla rather large, ridge on maxilla w ...ibution of frontal to supraorbital rim (except for the species S. terror), orbit comparatively large, nasal long and narrow, postfrontal broad, parietal sho
  9 KB (1,326 words) - 07:06, 10 July 2008
• Signals intelligence collection, space-based
  | journal = Red Orbit ...the French Space Agency (CNES), was launched into a Sun-synchronous polar orbit at an altitude of about 680 kilometers. There it will serve the French defe
  24 KB (3,507 words) - 20:52, 7 February 2010
• Starship
  ...e often more accurate. [[Space stations]] and other structures intended to orbit a heavenly body are not usually called starships, even if they can move und
  4 KB (588 words) - 09:13, 19 October 2009
• Chronology
  ...for a year is "orbital period". Earth orbits the Sun in 365.2425 days. The orbit is anti-clockwise as defined conventionally by a view from the North Pole, ...Sun or towards outer space, and the extent of tilt now begins to reduce as orbit continues. Six months later, on or about 21 December, the tilt reaches full
  17 KB (2,763 words) - 08:53, 2 March 2024
• Viking program
  ...had a [[satellite]] designed to [[photograph]] the surface of Mars from [[orbit]], and to act as a communication relay for the Viking lander that each miss ...rbiters continued imaging and other [[science|scientific]] operations from orbit while the landers deployed [[Measuring instrument|instrument]]s on the surf
  11 KB (1,602 words) - 01:59, 11 September 2013
• Jump cut
  ...ighest point, the shot cuts to that of a similarly-shaped space station in orbit above the earth. This edit has been described as a jump cut, including on t
  4 KB (698 words) - 18:34, 11 July 2009
• KH-4 CORONA
  ...perated by the U.S.A.F. After launch the satellites were placed in a polar orbit at an attitude of 100 nautical miles (185 km). Once the satellite had taken
  5 KB (677 words) - 10:29, 8 April 2024
• Atomic units
  ...atom, which required an integer number of wavelengths around the electron orbit.<ref name=Bohr_atom> ...the interpretation as the period of an electron circling in the first Bohr orbit divided by 2&pi;.<ref name=Schmidt>
  13 KB (1,945 words) - 19:19, 1 June 2022
• Wideband Global Satellite
  ...Frequency Bands|X- and Ka-bands]], these [[satellite orbits#geosynchronous orbit|geosynchronous satellites]] have approximately 10 times the bandwidth of th
  5 KB (664 words) - 10:20, 8 April 2024
• Bhangmeter
  ...ewhere between the surface of a remote area of the South Atlantic, and the orbit of VELA HOTEL satellites carrying the bhangmeters. Some intelligence analys
  5 KB (694 words) - 09:02, 4 May 2024
• James Croll
  ...ogical Epochs,'' where he proposed that periodic variations in the earth’s orbit around the sun accounted for the periodic variations in [[climate]] evidenc
  5 KB (823 words) - 07:21, 24 May 2011
• Hycean world
  ...lanets are likely to be [[tidally locked]] to the star, because they would orbit much more closely. A hycean world tidally locked to a red dwarf, that was
  7 KB (854 words) - 22:17, 1 March 2022
• Remote sensing
  .... Microsatellite constellations use multiple synchronized sensors in earth orbit. ...to the target, while lasers can illuminate a target from a high satellite orbit. While this discussion has emphasized the electromagnetic spectrum, there a
  11 KB (1,709 words) - 12:25, 22 March 2024
• RIM-161 Standard SM-3
  ...rie (CG-70)'' successfully destroyed a U.S. reconnaissance satellite whose orbit was decaying. The U.S. explanation was that if the satellite had entered an
  5 KB (718 words) - 16:23, 30 March 2024
• Galileo Galilei
  were in orbit around the Earth, but follows logically if both planets orbit the Sun. (It is also consistent with the system of [[Tycho Brahe]] in which planets orbit the Sun, which orbits the Earth.)
  14 KB (2,123 words) - 13:30, 8 November 2012
• Vacuum (partial)
  ...marking the point where lift cannot support a vehicle, and it must go into orbit.<ref name=O'Leary>{{cite book |title=Handbook of space engineering, archaeo
  5 KB (754 words) - 15:12, 4 August 2011
• N1 rocket
  ..., eventually known as [[Soyuz spacecraft|Soyuz]], that was designed for on-orbit rendezvous. Several launches would be used to build up a complete moon pack ...landing before the US. Since there were a number of unknowns in the Earth-Orbit-Rendezvous profile that could not be tested in time, a direct-launch profil
  18 KB (2,946 words) - 11:47, 2 February 2023
• Saturn (planet)
  ...]] in the 19th century, is that the rings were once a moon of Saturn whose orbit decayed until it came close enough to be ripped apart by [[tidal force]]s ( ...uperimposed on this is variability due to the eccentricity of the planet’s orbit that causes the planet to display brighter oppositions in the northern hemi
  23 KB (3,601 words) - 18:46, 13 January 2021
• Emergency Position Indicating Radio Beacon
  *[[satellite orbits|Geosynchronous orbit]] satellites (GEOSAR) aboard [[GOES]] and other satellites
  5 KB (814 words) - 10:02, 24 August 2010
• Venetian Blind (novel)
  ...s of a search for security leaks bring barrister Wakeley into the official orbit that is circling give-aways on "Negative Gravity", take him from England to
  5 KB (781 words) - 04:31, 21 March 2024
• Nuclear magnetic resonance/Catalogs/Magnetic nuclei
  ...common to refer to ''I'' as nuclear ''spin'', although it contains also orbit contributions of the nucleons.</ref>
  15 KB (2,459 words) - 17:02, 7 March 2024
• Copernican revolution (book)
  ...e assumed that the direction of the Earth's axis changes during its annual orbit, whereas in reality it makes a constant angle with the invariant ecliptic. ...mental way. He discarded all epicycles and let the Earth and other planets orbit the stationary Sun in elliptic orbits. His work the ''Rudolphine Tables'' (
  23 KB (3,632 words) - 18:47, 8 April 2014
• Primate
  ...aws, a thumb and a generalized body plan. All primates share a similar eye orbit morphology and have a [[post-orbital bar]]<ref name="Szalay"/>. All primate ...<ref name="Szalay"/>. In these earliest primates the bony ring around the orbit was complete like in modern primates, nails replaced claws and larger brain
  15 KB (2,156 words) - 10:52, 2 March 2021
• Nasal fracture
  ...mask more severe facial fractures- like that of the zygoma (cheekbone) or orbit (eye socket). These bones, like the nasal bones, are more amenable to being
  6 KB (1,047 words) - 04:51, 8 June 2009
• Atomic number
  ...arged nucleus with ''Z'' protons and ''A''&minus;''Z'' neutrons; around it orbit ''Z'' electrons, each of charge &minus;''e''.
  7 KB (1,066 words) - 05:40, 6 March 2024
• Vessel monitoring system
  ...w commercial, Inmarsat has a constellation of [[Satellite orbits#Low earth orbit|geosynchronous]] communications satellites. ...opean and US satellites in polar orbit, which is an especially appropriate orbit for vessels operating in high latitudes.
  24 KB (3,694 words) - 10:10, 24 August 2010
• Symmetric group
  ...s''. <math>G</math> is called ''transitive'' if {1,...,n} forms one single orbit.
  8 KB (1,392 words) - 20:52, 25 June 2009
• National Aeronautics and Space Administration
  ...08 to celebrate NASA's 50th anniversary. John Glenn, the first American to orbit Earth, Neil Armstrong, the first person to walk on the moon, Jim Lovell, ve ...a 15-minute suborbital flight. [[John Glenn]] became the first American to orbit the Earth on February 20, 1962 during the 5-hour flight of [[Mercury-Atlas
  22 KB (3,282 words) - 12:00, 9 March 2021
• Space law
  ...nerally begins at the lowest altitude above sea level at which objects can orbit the [[Earth]], (approximately 100 km or 62.1 miles). The inception of the
  8 KB (1,291 words) - 14:49, 24 February 2023
• Andromeda Galaxy
  ...h and six minutes to arrive at the Moon.) The fastest stars complete their orbit of the black hole in 100 years.<ref>[http://hubblesite.org/newscenter/archi Composed of about 300,000 old stars, G1 is a dwarf elliptical in orbit around the Andromeda galaxy at about 170,000 light-years from Andromeda's n
  15 KB (2,298 words) - 20:14, 10 January 2021
• Space Race
  ...wess and military potential. The same rockets that might send a human into orbit or hit a specific spot on the Moon could send an atom bomb to a specific en ...ion successfully launched [[Sputnik 1]], the first artificial satellite to orbit the Earth, thus beginning the Space Race.<ref>
  37 KB (5,685 words) - 17:13, 22 March 2024
• Cryogenics
  ...ttle]] uses cryogenic hydrogen fuel as its primary means of getting into [[orbit]], as did all of the rockets built for the [[Soviet space program]] by [[Se
  7 KB (1,043 words) - 09:37, 6 March 2024
• Intelligent Transportation Systems
  ...([[GPS]]) is a navigation system made up of a network of 24 satellites in orbit above Earth placed by the United States [[Department of Defense]] (US DoD).
  7 KB (1,090 words) - 08:23, 9 September 2020
• Venus (planet)
  ==Orbit and rotation== ...l]], Venus' is the closest to [[circle|circular]], with an [[eccentricity (orbit)|eccentricity]] of less than 1%. When Venus lies between the Earth and the
  41 KB (6,454 words) - 10:12, 28 February 2024
• Gravitation
  ...the other planets in their [[orbit]]s around the sun, the [[moon]] in its orbit around the earth, for the formation of [[tides]], and for various other nat
  17 KB (2,543 words) - 19:59, 19 March 2023
• Solar System
  The planets orbit the Sun in the following order: [[Mercury_(planet)|Mercury]], [[Venus_(plan *(a) in orbit around the Sun
  76 KB (11,605 words) - 21:48, 1 September 2020
• Mars (planet)
  ==Orbit and rotation== ...are on the opposite side of the Sun, minimising the perturbation of Ceres' orbit by Mars.
  44 KB (6,986 words) - 09:16, 6 March 2024
• Doppler effect
  As for binary stars, the case considered by Doppler, as the stars orbit each other, they are alternately moving toward and away from the observing
  10 KB (1,763 words) - 13:45, 25 September 2022
• Milky Way
  ...al Galaxy]] came the discovery of a ribbon of galactic debris as the polar orbit of [[Sagittarius (constellation)|Sagittarius]] and its interaction with the ...tes up and down relative to the galactic plane approximately 2.7 times per orbit. This is very similar to how a [[harmonic oscillator (classical))|simple ha
  37 KB (5,756 words) - 13:14, 10 January 2021
• Intelligence collection ontology
  ...ude Long Endurance (HALE) UAV, which are designed to function as Low Earth Orbit satellites.
  8 KB (1,249 words) - 11:14, 19 July 2013
• Molecular Hamiltonian
  ...ia [[Spin-orbit interaction|spin-orbit coupling]]. In analogy [[spin-other-orbit coupling]] was introduced. The fact that particle spin has some of the char
  31 KB (4,757 words) - 02:20, 27 October 2013
• Fritz Leiber
  ** ''The Snowbank Orbit'' (''[[If (Science Fiction Magazine)|If]]'', September 1962) ...(Science Fiction Anthology)|Andromeda 3]]'', edited by [[Peter Weston]], Orbit, 0-7088-8032-0, 1978)
  23 KB (3,042 words) - 04:00, 9 August 2012
• International Space Station
  ...ace Station''' ('''ISS''') is a research facility currently in low earth [[orbit]]. It is being assembled with international cooperation between the [[Unite The first section, [[Zarya]], was put in orbit in November 1998 on a Russian [[Proton rocket]]. Two further pieces, the [[
  39 KB (5,847 words) - 04:37, 23 February 2024
• Electro-optical MASINT
  ...em that operates from geosynchronous orbit, but the names of the low earth orbit components keep changing.
  20 KB (2,899 words) - 07:03, 4 April 2024
• Warfighter Information Network–Tactical
  ...lites. These allow operations when insufficient satellite capability is in orbit, or when ground operations are on a part of the earth that is not well cove
  11 KB (1,530 words) - 10:20, 8 April 2024
• Ballistic missile
  ...pending at least part of its flight in [[outer space]], but not going into orbit. The WWII German [[V-2]] was the first operational cruise missile; a number
  9 KB (1,327 words) - 07:27, 25 March 2024
• Aerospace engineering
  ...uary 21st, the [[USSR]] — [[N-1]] rocket lunar test flight failed to reach orbit. As of September 2007, this was the heaviest flying object ever launched, b
  9 KB (1,256 words) - 07:31, 20 April 2024
• Year 2038 bug
  ...03:14:07, Tuesday, January 19, 2038, satellites will start falling out of orbit, massive power outages (like the 2003 North American blackout) will occur,
  9 KB (1,386 words) - 09:02, 2 March 2024
• Apollo Command-Service Module
  ...th="75" colspan="1" |'''Role:'''||width="200" colspan="2"| Earth and Lunar Orbit ...am and for the [[Apollo-Soyuz Test Project]] where a CSM rendezvoused in [[orbit]] with a [[Soviet Union|Soviet]] [[Soyuz spacecraft]].
  24 KB (3,494 words) - 07:31, 20 April 2024
• Signals intelligence from 1990 to the present
  ...the French Space Agency (CNES), was launched into a Sun-synchronous polar orbit at an altitude of about 680 kilometers. There it will serve the French defe ...tional, with three satellites in operation and the fourth considered an in-orbit spare.
  21 KB (2,986 words) - 06:04, 8 April 2024
• Nicolaus Copernicus
  ...a special position in the cosmos, but is just one of the six planets that orbit the sun (the discoveries of Uranus and Neptune were a few hundred years lat
  10 KB (1,519 words) - 13:20, 8 November 2012
• Group theory
  ...f its maximal p-subgroups. Group actions also give rise to the so-called ''orbit-stabilizer theorem'', a very powerful counting theorem. As an application o
  15 KB (2,535 words) - 20:29, 14 February 2010
• Signals intelligence from 1980 to 1989
  ...atellite, codenamed Zircon. Proposed in 1983 to be in a [[geosynchronous]] orbit over the Soviet Union, it was cancelled, principally on grounds of cost, in
  12 KB (1,726 words) - 18:15, 10 February 2010
• Homo ergaster
  ...y Richard Leakey, the ER 3883 is a skull cap which retains an intact right orbit. ER 3883 has no sulcus or depression behind its large browridges.
  14 KB (2,051 words) - 10:59, 15 September 2013
• Bertrand Russell
  ...and Mars there is a china teapot revolving about the sun in an elliptical orbit, nobody would be able to disprove my assertion provided I were careful to a
  12 KB (1,964 words) - 11:47, 2 February 2023
• Benchmark quantities
  | Kinetic energy of 1000 kg satellite in 400 km altitude low-Earth orbit | Satellite in geosynchronous orbit (rela. to Earth)
  45 KB (6,572 words) - 12:36, 9 March 2024
• Jay Treaty
  ...to improve relations with the U.S. lest that country fall into the French orbit. From the American viewpoint, the most pressing foreign policy issues were
  13 KB (2,009 words) - 13:53, 16 October 2010
• Star
  ...le star. However, about 75 % of all stars are binary stars, two stars that orbit each other. The star nearest the Sun, [[Proxima Centauri]], is part of a mu
  14 KB (2,338 words) - 10:18, 23 November 2011
• Work (physics)
  ...lar motion and the gravitational force acting on a satellite in a circular orbit. If a body is in uniform (i.e., has constant speed) straight motion and t
  17 KB (2,892 words) - 23:00, 26 May 2010
• History of astronomy
  ...ew planets are discovered, there is a growing amount of data on planets in orbit around other stars.<ref>[http://www.astro.washington.edu/labs/clearinghouse ...r of other contributions: recognising that the Earth is a sphere, that the orbit of the Moon was inclined to the equator of the Earth and that the Morning S
  51 KB (8,075 words) - 05:28, 17 October 2013
• Quantum mechanics/Advanced
  ...s. However, in the natural world the electron normally remains in a stable orbit around a nucleus -- seemingly defying classical electromagnetism. ...ld be thought of as "clouds" of negative charge spread out over the entire orbit. These clouds represent the regions around the nucleus where the so-called
  37 KB (5,578 words) - 04:54, 21 March 2024
• Angular momentum (classical)
  ...tion]] is central-symmetric (rotationally invariant) and hence the earth's orbit is characterized by a conserved angular momentum, i.e., the time derivative
  23 KB (3,890 words) - 10:45, 11 June 2009
• Leopards as taphonomic agents
  ...ase had been chewed away, and a punctuate mark was present below the right orbit. All of the right and most of the left ascending mandibular rami had been c
  16 KB (2,478 words) - 06:34, 8 January 2008
• Angular momentum coupling
  ...e is no electron-electron interaction (or other interactions such as spin-orbit coupling), but that only the electron-nucleus [[Coulomb force|Coulomb attra
  21 KB (3,338 words) - 10:45, 11 June 2009
• Magnetic moment
  ...ecause spin and orbital angular momentum are coupled (the so-called [[spin-orbit coupling]]), an important influence in heavier atoms or highly ionized atom
  20 KB (3,045 words) - 11:21, 29 June 2011
• Pythagoras
  ...world-view of his age, but on the other hand he recognised that the Moon's orbit around the Earth was inclined towards the equator of the earth.
  17 KB (2,671 words) - 23:35, 25 October 2013
• Galaxy (astronomy)
  ...he Milky Way, containing only a few billion stars. Many dwarf galaxies may orbit a single larger galaxy; the Milky Way has at least a dozen such satellites.
  17 KB (2,688 words) - 22:56, 16 January 2021
• Atom (science)
  ...omic orbital]]s and are organized from the lowest energy to highest. Each orbit can be uniquely defined by four quantum numbers: 'n' the [[electron shell|s
  18 KB (2,789 words) - 20:34, 27 October 2020
• Neil Armstrong
  ...xploring while [[Michael Collins (astronaut)|Michael Collins]] remained in orbit in the Command Module. Armstrong was awarded the [[Presidential Medal of Fr ...Armstrong and Scott ignited at 11:41:02&nbsp;am EST, putting them into an orbit from where they would chase the Agena.<ref>Hansen 2005, ch. 19.</ref>
  68 KB (10,486 words) - 15:04, 15 April 2024
• Dokdo (Takeshima)/Debate Guide
  ...shifted its allegiance to [[Goryeo]] in 930 CE, thereby staying within the orbit of the Korean mainland when Goryeo defeated Silla in 935 CE. But during the
  20 KB (2,972 words) - 10:08, 28 February 2024
• Origin of life
  ...nto increasingly complex, sentient and intelligent animals on worlds which orbit within the habitable zone of their sun. This would mean that intelligent be
  17 KB (2,563 words) - 15:36, 28 June 2012
• STS-118/Timelines
  There are three different on-orbit repair techniques available to the crew. Both post-''Columbia'' [[Return to ...ering Independent Group advised NASA managers that repairing the damage on-orbit could assist with mission turn-around time once the orbiter was on the grou
  46 KB (7,033 words) - 09:14, 4 September 2023
• Earth's atmosphere
  ...yer of the atmosphere and it is in this layer that our man-made satellites orbit the Earth. The density of the exosphere is so low that particles within it
  22 KB (3,363 words) - 19:40, 9 January 2021
• Centrifugal force
  ...equilibrium results when the bead is positioned in the particular circular orbit for which the weight provides the correct centripetal force. By observing h
  26 KB (4,204 words) - 22:33, 28 November 2011
• Signals intelligence from 1954 to 1979
  ...satellites into initially low orbits and then raised into a polar working orbit at an altitude of 300 to 800 km using on-board engines ...sibly the translator's version of COMINT?) satellites, which were put into orbit at an altitude of around 500 km using a Thor-Agena booster. The Soviet sour
  74 KB (11,149 words) - 11:11, 4 April 2024
• National Security Agency
  ...satellites into initially low orbits and then raised into a polar working orbit at an altitude of 300 to 800 km using on-board engines ...sibly the translator's version of COMINT?) satellites, which were put into orbit at an altitude of around 500 km using a Thor-Agena booster. The Soviet sour
  72 KB (10,689 words) - 08:11, 4 May 2024
• John W. Campbell, Jr.
  ..._Orbit.jpg|thumb|right|200px|A United States submarine in [[Mars|Martian]] orbit, propelled there by a [[Dean drive]], on an ''Astounding'' cover.]]
  23 KB (3,560 words) - 17:18, 3 April 2010
• Electroconvulsive therapy
  ...CT in which electrodes are placed 2 inches above the lateral angle of each orbit. It appears to have less effect on memory than bitemporal ECT, and it incre
  23 KB (3,486 words) - 05:29, 2 August 2011
• Airship
  ...ions but also an "orbital airship" capable of lifting cargo into low earth orbit with a marginal transportation cost of $1 per short ton per mile of altitud
  23 KB (3,524 words) - 07:41, 12 April 2014
• Coriolis force
  ...orce of the path and [[Lift (force)|aeronautical lift]] are countered by [[Orbit|gravitational attraction]].<ref name=Ogden/><ref name= McCully2/>
  31 KB (5,049 words) - 11:55, 17 October 2021
• Tycho Brahe
  ...n maintained since [[Ancient history|antiquity]] that the world beyond the orbit of the moon, i.e. that of the fixed stars, was eternal and unchangeable (a
  23 KB (3,568 words) - 10:30, 2 April 2024
• The Oldest Confession
  ...t of most of those people unlucky enough to have found themselves in their orbit.
  26 KB (4,293 words) - 23:34, 6 October 2013
• Chemical elements
  ...egative ''e'', and of mass much smaller than the proton) "[[Atomic orbital|orbit]]" the nucleus of an atom, so that an atom as a whole is electrically neutr
  39 KB (5,559 words) - 09:16, 6 March 2024
• Intelligence cycle management
  ...INT, MASINT, and IMINT sensors, appropriate to a satellite orbits| type of orbit, on common platforms.
  60 KB (8,909 words) - 18:47, 3 April 2024
• Jet engine
  ...er wide range of airspeeds (Mach 0-5.5+). Features may permit launching to orbit, single stage, or very rapid, very long distance intercontinental travel. ...gines SABRE]], that might permit [[Reaction Engines Skylon|single-stage-to-orbit launch vehicles]],<ref>Paul Sutherland (July 11, 2012), [http://www.sen.com
  63 KB (9,748 words) - 13:17, 2 February 2023
• Restructuring of the United States Army
  ...the "mobile infantry" dropped, in powered exoskeletons, from spaceships in orbit. Even if that could be done today, it probably would be less effective than
  34 KB (5,015 words) - 08:09, 20 March 2024
• Chemical bond
  ...ord]]-[[Bohr]] planetary model of the atom in which the negative electrons orbit a positive nucleus. Both chemists believed electrons to be stationary on t
  37 KB (5,836 words) - 05:36, 6 March 2024
• Signals intelligence collection, ground-based
  ...at the same time as the first generation of INTELSAT satellites went into orbit, and the general description of the tasks of the 544th Intelligence Group,
  32 KB (4,630 words) - 06:04, 8 April 2024
• Pope
  ...ic Students (FFEC) was formed in 1922 to keep college graduates within the orbit of the Church, shield them from hostile ideological and political influence
  29 KB (4,702 words) - 09:23, 28 November 2022
• Neanderthal
  ...tes and Significant Fossils]]) Shanidar 1 took a crushing blow to his left orbit, probably blinding him and potentially causing brain damage; he also had on
  32 KB (5,017 words) - 18:41, 3 March 2024
• James Clerk Maxwell/Citable Version
  ...ngs must consist of myriad small particles, or moonlets, each in their own orbit around the planet, and that the ring could neither be solid nor fluid. Maxw
  35 KB (5,595 words) - 12:26, 6 September 2013
• James Clerk Maxwell
  ...ngs must consist of myriad small particles, or moonlets, each in their own orbit around the planet, and that the ring could neither be solid nor fluid. Maxw
  35 KB (5,571 words) - 12:27, 6 September 2013
• Soviet support for Iraq during the Iran-Iraq War
  ...t to over the battlefield between Iraq and Iran. Similarly, it altered the orbit of Kosmos 1985 in a way that implied it either had night coverage of the ba
  38 KB (5,854 words) - 07:02, 4 April 2024
• Measurement and signature intelligence
  ...to the target, while lasers can illuminate a target from a high satellite orbit. While this discussion has emphasized the electromagnetic spectrum, there a
  40 KB (5,946 words) - 12:21, 22 March 2024
• Marshall Plan
  ...after the Marshall Plan threatened to lure eastern Europe into the western orbit.<ref> Michael Cox and Caroline Kennedy-Pipe. "The Tragedy of American Dipl
  34 KB (5,164 words) - 01:13, 9 February 2024
• Astronomy
  Comets and asteroids that travel in an orbit that takes them into the Earth's neighborhood are called [[Near Earth Objec
  46 KB (6,796 words) - 10:08, 28 February 2024
• United States intelligence community oversight
  ...epiping, in which SIGINT and IMINT satellites, in a given satellite orbits|orbit, were launched by different agencies.
  47 KB (7,075 words) - 15:49, 1 April 2024
• Global warming
  ...ns, but also solar activity, volcanic emissions, variations in the Earth's orbit, and variations in atmospheric composition. The scientific consensus<ref>{{
  54 KB (8,007 words) - 06:42, 7 April 2014
• Cosmology
  ...blished, at long last, the heliocentric theory putting the solar system in orbit around the sun and thereby resolving many of the problems that Ptolemy and
  46 KB (7,449 words) - 19:49, 26 October 2020
• Death
  [[Space burial]] uses a rocket to launch the cremated remains of a body into orbit. This has been done at least 150 times.
  49 KB (7,496 words) - 10:16, 24 March 2024
• Mathematical biology/Signed Articles/Biology's next microscope: Mathematics
  ...ater 17th century were stimulated by physical problems such as [[planetary orbit]]s and [[optics|optical calculations]].
  46 KB (6,635 words) - 13:25, 14 April 2021