The MESSENGER spacecraft

This is a list of all probes which have escaped Earth orbit (which does not include probes orbiting at Lagrangian points L1 or L2). They are categorized by current operational status followed by mission progress. Landing vehicles are not listed independently of their transport craft if the two vehicles failed to successfully detached. Probes intended to escape orbit but which failed to do so are not included. For a list of probes organized by functional status and mission completion, see List of probes by operational status. ... Download high resolution version (1200x955, 57 KB)Mercury MESSENGER spacecraft -- public domain from NASA.gov File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Download high resolution version (1200x955, 57 KB)Mercury MESSENGER spacecraft -- public domain from NASA.gov File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... A contour plot of the effective potential (the Hills Surfaces) of a two-body system (the Sun and Earth here), showing the five Lagrange points. ...

Active Probes

This includes all craft which are still able to transmit usable data to Earth (whether or not they can receive commands). They are further grouped by mission status based on their primary mission. For example, though Voyager 1 is en route to the heliopause, it is listed as 'mission complete' because its primary task of studying Jupiter and Saturn has been accomplished. Once a probe has reached its first primary target, it is no longer listed as 'en route' whether or not further travel is involved. For the album by The Verve, see Voyager 1 (album). ... For other uses, see Jupiter (disambiguation). ... This article is about the planet. ...

En Route

• Rosetta, launched after several delays and mission changes, is currently on an intercept course with 67P/Churyumov-Gerasimenko. It will deploy a lander for further investigation after reaching the comet.

Launched: March 2, 2004 | Destination: 67P/Churyumov-Gerasimenko | Arrival: May 2015 | Institution: ESA

Lander Probe: Philae

• MESSENGER is to study Mercury, becoming only the second probe to do so. Technologically, it is far superior to its 1975 predecessor. Thus far passing Venus twice, it will complete three Mercurian flybys by 2009.

Launched: August 4, 2004 | Destination: Mercury | Arrival: January 14, 2008 | Institution: NASA

• New Horizons was the fastest artificially-accelerating object and will be the fifth probe to leave the solar system. It will be the first spacecraft to study Pluto, ultimately destined for the Kuiper Belt.

Launched: January 19, 2006 | Destination: Pluto, Charon | Arrival: 2015 | Institution: NASA

• Phoenix is to study the northern polar region of Mars and investigate the ice-soil boundary.

Launched: August 4, 2007 | Destination: Mars | Arrival: May 25, 2008 | Institution: NASA

Rosetta is a European Space Agency-led unmanned space mission launched in 2004 intended to study the comet 67P/Churyumov-Gerasimenko. ... Comet Hale-Bopp Comet West For other uses, see Comet (disambiguation). ... is the 61st day of the year (62nd in leap years) in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... 67P/Churyumov-Gerasimenko is the designation of a comet with a current orbital period of 6. ... “ESA” redirects here. ... Philae (or Pilak or Paaleq [Egyptian: remote place or the end or the angle island]; [Arabic: Anas el Wagud]) is an island in the Nile River and the previous site of an Ancient Egyptian temple complex in southern Egypt. ... This article is about the NASA space mission. ... The Mariner 10 probe. ... Adjectives: Venusian or (rarely) Cytherean Atmosphere Surface pressure: 9. ... is the 216th day of the year (217th in leap years) in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... This article is about the planet. ... is the 14th day of the year in the Gregorian calendar. ... 2008 (MMVIII) will be a leap year starting on Tuesday of the Gregorian calendar. ... This article is about the American space agency. ... New Horizons on the launchpad New Horizons is a robotic spacecraft mission conducted by NASA. It is expected to be the first spacecraft to fly by and study the dwarf planet Pluto and its moons, Charon, Nix and Hydra. ... The Kuiper belt, derived from data from the Minor Planet Center. ... is the 19th day of the year in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... For other uses, see Pluto (disambiguation). ... Charon may refer to: Charon (mythology) - the figure from Greek, and later Christian mythology, who ferried the dead across the river Acheron in the underworld Hades and Hell, respectively. ... 2015 (MMXV) will be a common year starting on Thursday of the Gregorian calendar. ... This article is about the American space agency. ... Phoenix is a robotic spacecraft on a space exploration mission to Mars under the Mars Scout Program. ... Adjectives: Martian Atmosphere Surface pressure: 0. ... is the 216th day of the year (217th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the. ... Adjectives: Martian Atmosphere Surface pressure: 0. ... is the 145th day of the year (146th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) will be a leap year starting on Tuesday of the Gregorian calendar. ... This article is about the American space agency. ...

Mission in Progress

• The Cassini orbiter began studying Saturn and its moons after passing Venus & Jupiter and deploying the Huygens landing probe to Titan. It is primarily investigating Saturn's rings, its magnetosphere, and the geologic compsition of its satellites; its mission will continue to at least 2008, likely longer.

Launched: October 15, 1997 | Destination: Saturn | Arrival: July 1, 2004 | Institution: NASA, ESA, ASI

Lander Probe: Huygens [mission complete]

• 2001 Mars Odyssey, a tribute to the classic novel and film, is one of three currently-active Mars satellites. It will continue its mission to map the surface of Mars until September 2008

Launched: April 7, 2001 | Destination: Mars | Arrival: October 24, 2001 | Institution: NASA

• Hayabusa failed at two important mission tasks: its landing probe did not deploy correctly, and it was unable to collect ground samples. Nonetheless, it is believed that the probe managed to collect a sampling of the dust around the asteroid, and it is currently on a return course to Earth.

Launched: May 9, 2003 | Destination: 25143 Itokawa | Arrival: September, 2005 | Institution: JAXA

Lander Probe: Minerva mini-lander [mission failed]

• Mars Express: Mars orbiter designed to study the planet's atmosphere and geology, search for sub-surface water, and deploy the Beagle lander. Mission now extended until May 2009.

Launched: June 2, 2003 | Destination: Mars | Arrival: December 25, 2003 | Institution: ESA

Lander: Beagle 2 [mission failed; contact lost at landing]

• LANDER: Opportunity Rover landed on Meridiani Planum three weeks after its twin touched down on the opposite side of the planet. Expected to last 90 martian days, it continues to function effectively after 1000.

Launched: June 10, 2003 | Destination: Mars | Arrival: January 25, 2004 | Institution: NASA

• LANDER: Spirit Rover, like its twin robot, was designed primarily for geologic analysis on the Martian surface. It has exceeded its primary mission length thirteen times over.

Launched: June 10, 2003 | Destination: Mars | Arrival: January 4, 2004 | Institution: NASA

• Mars Reconnaissance Orbiter is the second NASA satellite orbiting Mars. It is specifically designed to analyze the landforms, stratigraphy, minerals, and ice of the red planet, which will aid in selecting a landing site for future landers Phoenix and Mars Science Laboratory.

Launched: August 12, 2005 | Destination: Mars | Arrival: March 10, 2006 | Institution: NASA

• Venus Express, modeled after the Mars Express, is currently undertaking its thousand-day mission to Venus. During this time, it will collect data on Venucian atmosphere and cloud conditions.

Launched: November 9, 2005 | Destination: Venus | Arrival: April 11, 2006 | Institution: ESA

• Ulysses was sent to study the 'northern' and 'southern' polar reigons of the sun. Gravity-assist from Jupiter hurled it over the lower extreme of our star; a second Jupiter loop sent it over the sun's upper reaches. Its mission has since been extended till 2008, shortly after which the probe will lose power.

Launched: October 6, 1990 | Destination: Sun | Arrival: 1994 | Institution: ESA

• SELENE (Kaguya), a lunar orbiter and two small co-satellites, is designed to carry out mineralogical, geographical, magnetic field and gravitational observations.

Launched: September 14, 2007 | Destination: Moon | Orbit insertion: October 3, 2007 | Institution: JAXA

Cassini–Huygens is a joint NASA/ESA/ASI unmanned space mission intended to study Saturn and its moons. ... The Saturnian system (photographic montage) Saturn has 60 confirmed natural satellites, plus three hypothetical moons. ... The Huygens probe, supplied by the European Space Agency (ESA) and named after the Dutch 17th century astronomer Christiaan Huygens, is an atmospheric entry probe carried to Saturns moon Titan as part of the Cassini-Huygens mission. ... Titan may mean: // Titan (mythology), a class of deities who preceded the Olympians in Greek mythology Helios, Greek sun-deity sometimes referred to as Titan (Mahler), nicknamed Titan Titan (satellite), largest satellite of the planet Saturn Titan beetle, the largest beetle in the Amazon rainforest USS Titan (AGOS-15), a... A magnetosphere is the region around an astronomical object in which phenomena are dominated or organized by its magnetic field. ... is the 288th day of the year (289th in leap years) in the Gregorian calendar. ... For the band, see 1997 (band). ... This article is about the planet. ... is the 182nd day of the year (183rd in leap years) in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... This article is about the American space agency. ... This article is about the European Space Agency. ... ASI can refer to: Access Solutions, Inc. ... The Huygens probe, supplied by the European Space Agency (ESA) and named after the Dutch 17th century astronomer Christiaan Huygens, is an atmospheric entry probe carried to Saturns moon Titan as part of the Cassini-Huygens mission. ... Artists concept of the 2001 Mars Odyssey Spacecraft 2001 Mars Odyssey is an unmanned spacecraft orbiting the planet Mars. ... A movie poster from the original release of 2001 2001: A Space Odyssey (1968) is an immensely popular and influential science fiction film and book; the film directed by Stanley Kubrick and the book written by Arthur C. Clarke. ... April 7 is the 97th day of the year in the Gregorian calendar (98th in leap years). ... Year 2001 (MMI) was a common year starting on Monday (link displays the 2001 Gregorian calendar). ... Adjectives: Martian Atmosphere Surface pressure: 0. ... is the 297th day of the year (298th in leap years) in the Gregorian calendar. ... Year 2001 (MMI) was a common year starting on Monday (link displays the 2001 Gregorian calendar). ... This article is about the American space agency. ... For other uses, see Hayabusa (disambiguation). ... 253 Mathilde, a C-type asteroid. ... is the 129th day of the year (130th in leap years) in the Gregorian calendar. ... Year 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... Image:25143 Itokawa 051101-2 ISAS-JAXA.jpg Hayabusa image of 25143 Itokawa. ... The Japan Aerospace Exploration Agency ), or JAXA, is Japans national aerospace agency. ... For other uses, see Hayabusa (disambiguation). ... Concept model of the Mars Express spacecraft Main Engine Thrust for braking manouevre Mars Express is a Mars exploration mission of the European Space Agency and the first planetary mission attempted by the agency. ... is the 153rd day of the year (154th in leap years) in the Gregorian calendar. ... Year 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... Adjectives: Martian Atmosphere Surface pressure: 0. ... is the 359th day of the year (360th in leap years) in the Gregorian calendar. ... Year 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... This article is about the European Space Agency. ... Beagle 2 as it would have looked on Mars Beagle 2 was an unsuccessful British landing spacecraft that formed part of the European Space Agencys 2003 Mars Express mission. ... The launch patch for Opportunity, featuring Duck Dodgers (Daffy Duck). ... Mars Exploration Rover Opportunity looks southwest across Meridiani Planum; the Rovers discarded backshell and parachute are visible in the distance Hematite deposits in Meridiani Planum mapped from orbit, with Opportunity rover landing site ellipse Meridiani Planum is a plain located 2 degrees south of Mars equator, in the westernmost... Standards Of Learning SOL stands for The Standards Of Learning. ... is the 161st day of the year (162nd in leap years) in the Gregorian calendar. ... Year 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... Adjectives: Martian Atmosphere Surface pressure: 0. ... is the 25th day of the year in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... This article is about the American space agency. ... The launch patch for Spirit, featuring Marvin the Martian. ... is the 161st day of the year (162nd in leap years) in the Gregorian calendar. ... Year 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... Adjectives: Martian Atmosphere Surface pressure: 0. ... is the 4th day of the year in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... This article is about the American space agency. ... NASAs Mars Reconnaissance Orbiter (MRO) is a multipurpose spacecraft designed to conduct reconnaissance and exploration of Mars from orbit. ... Phoenix is a robotic spacecraft on a space exploration mission to Mars under the Mars Scout Program. ... 2007 Mars Science Laboratory concept Schematic diagram of the planned rover components The Mars Science Laboratory (or MSL for short) is a NASA rover scheduled to launch in September 2009 and perform a precision landing on Mars in July-September 2010. ... is the 224th day of the year (225th in leap years) in the Gregorian calendar. ... Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ... Adjectives: Martian Atmosphere Surface pressure: 0. ... March 10 is the 69th day of the year (70th in leap years) in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... This article is about the American space agency. ... Venus Express is the first Venus exploration mission of the European Space Agency. ... is the 313th day of the year (314th in leap years) in the Gregorian calendar. ... Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ... Adjectives: Venusian or (rarely) Cytherean Atmosphere Surface pressure: 9. ... is the 101st day of the year (102nd in leap years) in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... This article is about the European Space Agency. ... Ulysses spacecraft Ulysses is an unmanned probe designed to study the Sun at all latitudes. ... is the 279th day of the year (280th in leap years) in the Gregorian calendar. ... Year 1990 (MCMXC) was a common year starting on Monday (link displays the 1990 Gregorian calendar). ... Sol redirects here. ... Year 1994 (MCMXCIV) The year 1994 was designated as the International Year of the Family and the International Year of the Sport and the Olympic Ideal by the United Nations. ... This article is about the European Space Agency. ... This article is about the lunar spacecraft. ... is the 257th day of the year (258th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the. ... This article is about Earths moon. ... is the 276th day of the year (277th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the. ... The Japan Aerospace eXploration Agency (JAXA) is Japans aerospace agency. ...

Mission Complete

Standby mode

• Stardust was the first unmanned spacecraft to return a sample to Earth. The craft rendevoused with Earth in 2006, releasing a pod which contained samples of comet coma and interstellar dust. Returning to heliocentric orbit, it awaits reactivation. NASA is considering deploying the spacecraft to Tempel 1, the comet targeted by Deep Impact.

Launched: February 7, 1999 | Destination: Wild 2 | Arrival: January 2, 2004 | Institution: NASA

Mission Completion: January 15, 2006 | Current Trajectory: heliocentric orbit

An artists rendering of Stardust (NASA image) The Stardust capsule with cometary and interstellar samples landed at the U.S. Air Force Utah Test and Training Range at 10:10 UTC (15 January 2006) in the Bonneville Salt Flats. ... The comet Ikeya-Zhang exhibiting a bright, condensed coma (march 2002) In astronomy, the nebulous envelope around the nucleus of a comet is called its coma (from the Latin word for hair). It is formed when the comet passes close to the sun on its highly elliptical orbit; as the... Interstellar cloud is the generic name given to accumulations of gas and dust in our galaxy. ... is the 38th day of the year in the Gregorian calendar. ... This article is about the year. ... is the 2nd day of the year in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... This article is about the American space agency. ... is the 15th day of the year in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... Heliocentric Solar System Heliocentrism (lower panel) in comparison to the geocentric model (upper panel) In astronomy, heliocentrism is the theory that the sun is at the centre of the Universe and/or the Solar System. ...

New mission in progress

• Voyager 2 has not yet left the solar system, but will become one of only five to do so eventually. Its mission to study all four gas giants was one of NASA's most successful, yielding a wealth of new information. It is currently some 80.5 AUs from the sun, and will continue to operate until at least 2020. As with Voyager 1, scientists are now using Voyager 2 to learn what the solar system is like beyond the heliosphere.

Launched: August 20, 1977 | Destination: Jupiter, Saturn, Uranus, Neptune| Arrival: July 9, 1979 | Institution: NASA

Mission Completion: August 1989 | Current Trajectory: bound for heliosheath

• Voyager 1 is currently the furthest man-made object from space at more than 9.5 billion miles (0.0016 light years) from the sun, and it will not be overtaken by any other craft. It was originally tasked with investigating Jupiter and Saturn, and the moons of these planets. Its continuing data feed offeres the first direct measurements of the heliosheath and may eventually provide data on the heliopause. Voyager 1 shall continue operating until at least 2020.

Launched: September 5, 1977 | Destination: Jupiter & Saturn | Arrival: January 1979 | Institution: NASA

Mission Completion: November, 1980 | Current Trajectory: bound for heliopause

• Deep Impact, light-heartedly named for the eponymous disaster movie, was designed to study the comet Tempel 1 by impacting it with a high-speed projectile and photographing the results. This accomplished, its course was changed to rendezvous with Comet Boethin in 2008.

Launched: January 12, 2005 | Destination: Tempel 1 | Arrival: -- | Institution: NASA

Mission Completion: -- | Current Trajectory: heliocentric orbit

Trajectory Voyager 2 is an unmanned interplanetary spacecraft, launched on August 20, 1977. ... This article is about the Solar System. ... A gas giant is a large planet that is not composed mostly of rock or other solid matter. ... Look up Au, au in Wiktionary, the free dictionary. ... is the 232nd day of the year (233rd in leap years) in the Gregorian calendar. ... Also: 1977 (album) by Ash. ... For other uses, see Jupiter (disambiguation). ... This article is about the planet. ... For other uses, see Uranus (disambiguation). ... For other uses, see Neptune (disambiguation). ... is the 190th day of the year (191st in leap years) in the Gregorian calendar. ... Also: 1979 by Smashing Pumpkins. ... This article is about the American space agency. ... The locations of Voyagers 1 and 2 as of 2005 The heliosheath is the zone between the termination shock and the heliopause at the outer border of the solar system. ... For the album by The Verve, see Voyager 1 (album). ... The heliopause is the boundary between the heliosphere and the interstellar medium outside the solar system. ... is the 248th day of the year (249th in leap years) in the Gregorian calendar. ... Also: 1977 (album) by Ash. ... For other uses, see Jupiter (disambiguation). ... This article is about the planet. ... This article is about the American space agency. ... The heliopause is the boundary between the heliosphere and the interstellar medium outside the solar system. ... Illustration of the Deep Impact space probe after impactor separation (artists conception) Deep Impact is a NASA space probe designed to study the composition of the interior of the comet Tempel 1. ... Deep Impact is a 1998 disaster film/science fiction film released by Paramount Pictures and DreamWorks Pictures. ... Comet Hale-Bopp Comet West For other uses, see Comet (disambiguation). ... Comet Boethin (or 85P/Boethin) is a periodic comet and the possible future target of NASAs Deep Impact comet-exploration mission. ... is the 12th day of the year in the Gregorian calendar. ... Year 2005 (MMV) was a common year starting on Saturday (link displays full calendar) of the Gregorian calendar. ... Tempel 1 is a periodic comet (formally designated 9P/Tempel 1). ... This article is about the American space agency. ... Heliocentric Solar System Heliocentrism (lower panel) in comparison to the geocentric model (upper panel) In astronomy, heliocentrism is the theory that the sun is at the centre of the Universe and/or the Solar System. ...

No future missions projected

• Pioneer 6, launched in 1965, is the oldest functioning probe (if still operating). Contact was last attemped December 8, 2000 to celebrate its thirty-fifth anniversery, and the attempt was successful.^[1] Like the three craft which superseded it, it took measurements of the solar wind, solar magnetic field and cosmic rays.

Launched: December 16, 1965 | Destination: heliocentric orbit | Arrival: ? | Institution: NASA

Mission Completion: ? | Current Trajectory: heliocentric orbit

• Pioneer 7 was last contacted March 31, 1995; no attempt has been made since, and this probe may or may not be operational.

Launched: August 17, 1966 | Destination: heliocentric orbit | Arrival: ? | Institution: NASA

Mission Completion: ? | Current Trajectory: heliocentric orbit

• Pioneer 8 was last contacted in August 22, 1996; no attempt has been made since, and this probe may or may not be operational.

Launched: November 8, 1967 | Destination: heliocentric orbit | Arrival: ? | Institution: NASA

Mission Completion: ? | Current Trajectory: heliocentric orbit

Pioneer 6, 7, 8 and 9 were all part of the Pioneer program, and together formed a series of solar-orbiting, spin-stabilized, solar-cell and battery-powered satellites designed to obtain measurements on a continuing basis of interplanetary phenomena from widely separated points in space. ... is the 342nd day of the year (343rd in leap years) in the Gregorian calendar. ... Year 2000 (MM) was a leap year starting on Saturday (link will display full 2000 Gregorian calendar). ... is the 350th day of the year (351st in leap years) in the Gregorian calendar. ... Year 1965 (MCMLXV) was a common year starting on Friday (link will display full calendar) of the 1965 Gregorian calendar. ... Heliocentric Solar System Heliocentrism (lower panel) in comparison to the geocentric model (upper panel) In astronomy, heliocentrism is the theory that the sun is at the centre of the Universe and/or the Solar System. ... This article is about the American space agency. ... Heliocentric Solar System Heliocentrism (lower panel) in comparison to the geocentric model (upper panel) In astronomy, heliocentrism is the theory that the sun is at the centre of the Universe and/or the Solar System. ... Pioneer 6, 7, 8 and 9 were all part of the Pioneer program, and together formed a series of solar-orbiting, spin-stabilized, solar-cell and battery-powered satellites designed to obtain measurements on a continuing basis of interplanetary phenomena from widely separated points in space. ... is the 90th day of the year (91st in leap years) in the Gregorian calendar. ... Year 1995 (MCMXCV) was a common year starting on Sunday (link will display full 1995 Gregorian calendar). ... is the 229th day of the year (230th in leap years) in the Gregorian calendar. ... Year 1966 (MCMLXVI) was a common year starting on Saturday (link will display full calendar) of the 1966 Gregorian calendar. ... Heliocentric Solar System Heliocentrism (lower panel) in comparison to the geocentric model (upper panel) In astronomy, heliocentrism is the theory that the sun is at the centre of the Universe and/or the Solar System. ... This article is about the American space agency. ... Heliocentric Solar System Heliocentrism (lower panel) in comparison to the geocentric model (upper panel) In astronomy, heliocentrism is the theory that the sun is at the centre of the Universe and/or the Solar System. ... Pioneer 6, 7, 8 and 9 were all part of the Pioneer program, and together formed a series of solar-orbiting, spin-stabilized, solar-cell and battery-powered satellites designed to obtain measurements on a continuing basis of interplanetary phenomena from widely separated points in space. ... is the 234th day of the year (235th in leap years) in the Gregorian calendar. ... Year 1996 (MCMXCVI) was a leap year starting on Monday (link will display full 1996 Gregorian calendar). ... is the 312th day of the year (313th in leap years) in the Gregorian calendar. ... Year 1967 (MCMLXVII) was a common year starting on Sunday (link will display full calendar) of the 1967 Gregorian calendar. ... Heliocentric Solar System Heliocentrism (lower panel) in comparison to the geocentric model (upper panel) In astronomy, heliocentrism is the theory that the sun is at the centre of the Universe and/or the Solar System. ... This article is about the American space agency. ... Heliocentric Solar System Heliocentrism (lower panel) in comparison to the geocentric model (upper panel) In astronomy, heliocentrism is the theory that the sun is at the centre of the Universe and/or the Solar System. ...

Inactive Probes

This includes all craft which are no longer able to transmitt usable data to Earth (whether or not they can receive commands) but are not necessarily destroyed. They are further grouped by the cause of their inactivity. 'Loss of power' refers to power loss in craft which have exceeded their predicted lifespan, not due to unpredicted electrical failure.

Mission Incomplete

Known failure

• Lander Probe: MINERVA mini-lander'

For other uses, see Hayabusa (disambiguation). ...

Unknown failure

No data available

Mission Complete

Unknown failure

Loss of power

Huygens probe

No data available

Destroyed Probes

This includes all craft which are known to have been destroyed, intentionally or otherwise, or have permenatly returned to Eartht.

Mission Incomplete

Mission Complete

Intentionally destroyed

Returned to Earth

References

1. ^ http://solarsystem.nasa.gov/missions/profile.cfm?Sort=Alpha&Alias=Pioneer%206&Letter=P&Display=ReadMore