List of spacecraft intentionally crashed into extraterrestrial bodies

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Deep Impact at Comet 9P/Tempel 1 ITS Impact.gif
Deep Impact at Comet 9P/Tempel 1
Dart Impact at Dimorphos Dart impact replay.gif
Dart Impact at Dimorphos
Mars 2020 Skycrane descend stage crash smoke plume in the distance PIA24425-MarsPerseveranceRover-SmokePlumeFromDescentStageAfterLanding-20210218.jpg
Mars 2020 Skycrane descend stage crash smoke plume in the distance

This is a list of uncrewed spacecraft which have been intentionally destroyed at their objects of study, typically by hard landings or crash landings at the end of their respective missions and/or functionality. This list only includes spacecraft specifically instructed to crash into the surface of an astronomical body other than the Earth, and also does not include unintentionally crashed spacecraft, derelict spacecraft, or spacecraft designed as landers. Intentionally crashing spacecraft not only removes the possibility of orbital space debris and planetary contamination, but also provides the opportunity (in some cases) for terminal science given that the transient light released by the kinetic energy may be available for spectroscopy; the physical ejecta can be used for further study.

Contents

Even after soft landings had been mastered, NASA used crash landings to test whether Moon craters contained ice by crashing space probes into craters and testing the debris that got thrown out. [1] Several rocket stages utilized during the Apollo space program were intentionally crashed on the Moon to aid seismic research, and four of the ascent stages of Apollo Lunar Modules were intentionally crashed onto the Moon after they had fulfilled their primary mission. In total at least 47 NASA rocket bodies have impacted the Moon.

A recent impactor, the unusual double-crater of which was photographed on March 4, 2022 by the Lunar Reconnaissance Orbiter, is of unknown provenance; no space program has taken credit for it, [2] although a later study attributed it to a spent upper stage from the Chang'e 5-T1 mission. [3]

The Deep Impact mission had its own purpose-built impactor which hit Comet 9P/Tempel 1. Terminal approaches to gas giants which resulted in the destruction of the space probe count as crash landings for the purposes of this article. The crash landing sites themselves are of interest to space archeology.

Luna 1, not itself a lunar orbiter, was the first spacecraft designed as an impactor. It failed to hit the Moon in 1959, however, thus inadvertently becoming the first man-made object to leave geocentric orbit and enter a heliocentric orbit, where it remains.

Planets

Mercury

MissionCountry/AgencyDate of landing/impactCoordinatesNotes
MESSENGER Flag of the United States.svg United States30 April 2015Probably around 54.4° N, 149.9° W, near the crater JanáčekIntentionally crashed at end of mission.

Venus

MissionCountry/AgencyDate of landing/impactCoordinatesNotes
Venera 3 Flag of the Soviet Union.svg Soviet Union1 March 1966 20°N80°E / 20°N 80°E / 20; 80 First manmade object to hit another planet. Failed to transmit data.
Venera 4 Flag of the Soviet Union.svg Soviet Union18 October 1967 19°N38°E / 19°N 38°E / 19; 38 First probe to transmit data from another planet's atmosphere. Succumbed after 53 minutes, within 26 kilometres (16 mi) from the surface.
Venera 5 Flag of the Soviet Union.svg Soviet Union16 May 1969 3°S18°E / 3°S 18°E / -3; 18 Succumbed after 51 minutes, within 26 kilometres (16 mi) from the surface.
Venera 6 Flag of the Soviet Union.svg Soviet Union17 May 1969 5°S23°E / 5°S 23°E / -5; 23 Succumbed after 51 minutes, within 11 kilometres (6.8 mi) from the surface.
Venera 7 Flag of the Soviet Union.svg Soviet Union15 December 1970 5°S351°E / 5°S 351°E / -5; 351 Unexpectedly survived impact and generated extremely weak signal after landing. [a]
Pioneer Venus Large probe Flag of the United States.svg United States9 December 1978 4°24′N304°00′E / 4.4°N 304.0°E / 4.4; 304.0 Stopped transmitting on impact with surface.
Pioneer Venus Small Probe North Flag of the United States.svg United States9 December 1978 59°18′N4°48′E / 59.3°N 4.8°E / 59.3; 4.8 Stopped transmitting on impact with surface.
Pioneer Venus Small Probe Day Flag of the United States.svg United States9 December 1978 31°18′S317°00′E / 31.3°S 317.0°E / -31.3; 317.0 Unexpectedly survived impact and transmitted for another 68 minutes.
Pioneer Venus Small Probe Night Flag of the United States.svg United States9 December 1978 28°42′S56°42′E / 28.7°S 56.7°E / -28.7; 56.7 Unexpectedly survived impact and transmitted for another 2 seconds.
Pioneer Venus Multiprobe Bus Flag of the United States.svg United States9 December 1978Stopped transmitting within 110 kilometres (68 mi) from the surface.
Pioneer Venus Orbiter Flag of the United States.svg United States22 October 1992Intentionally held to lower orbit to facilitate orbital decay.
Magellan Flag of the United States.svg United States13 October 1994Controlled entry into Venus upon conclusion of mission.
  1. Venera 8-14 and Vega 1 and 2 were explicitly designed to land on Venus and are not included in this list.

Mars

MissionCountry/AgencyDate of landing/impactCoordinatesNotes
Mars Science Laboratory Sky crane Flag of the United States.svg United States6 August 2012 Bradbury Landing
4°35′09″N137°25′52″E / 4.5859°N 137.4312°E / 4.5859; 137.4312
Debris field created by the heat shield, sky crane, and other components.
Mars 2020 Sky crane Flag of the United States.svg United States18 February 2021 Octavia E. Butler Landing
18°27′11″N77°27′01″E / 18.453°N 77.4504°E / 18.453; 77.4504
Debris field created by the heat shield, sky crane, and other components.

Jupiter

MissionCountry/AgencyDate of landing/impactCoordinatesNotes
Galileo atmospheric probe Flag of the United States.svg United States7 December 1995Functioned for 57.6 minutes, disintegrated in the Jovian atmosphere
Galileo Flag of the United States.svg United States21 September 2003Disintegrated in the Jovian atmosphere.

Saturn

MissionCountry/AgencyDate of landing/impactCoordinatesNotes
Cassini orbiter Flag of the United States.svg United States15 September 20179.4° N, 53° W30 seconds of terminal data, more than anticipated, were received prior to Cassini's disintegration in Saturn's atmosphere.

Planetary moons

Earth's Moon

Other bodies

Asteroids

MissionCountry/AgencyDate of landing/impactCoordinatesNotes
NEAR Shoemaker Flag of the United States.svg United States12 February 2001 Eros Slow impact with asteroid surface, spacecraft operated for another two weeks on asteroid surface.
Hayabusa 2 Small Carry-On Impactor (SCI) Flag of Japan.svg Japan5 April 2019 Ryugu Copper projectile shot at surface with explosive charge to expose asteroid subsurface.
Double Asteroid Redirection Test (DART) Flag of the United States.svg United States26 September 2022 Dimorphos First attempt in history to redirect an asteroid.

Comets

MissionCountry/AgencyDate of landing/impactCoordinatesNotes
Deep Impact Flag of the United States.svg United States4 July 2005Tempel 1The "Smart Impactor" had a payload of 100 kg of copper, which at its closing velocity of 10.2 km/s had the kinetic energy equivalent to 4.8 tonnes of TNT.
Rosetta ESA logo simple.svg ESA 30 September 2016 67P/Churyumov–Gerasimenko Intentionally crashed at end of mission.

See also

References

  1. "Crash Landing on the Moon". NASA Science. Archived from the original on April 16, 2010. Retrieved April 20, 2016.
  2. Chron, Ariana Garcia (June 29, 2022). "'Mystery rocket' that crashed into the Moon baffles NASA scientists". Chron.
  3. Wall, Mike (16 November 2023). "Rogue rocket that slammed into the moon last year confirmed to be Chinese vehicle". Space.com. Future US Inc. Retrieved 28 February 2024.
  4. Robinson, Mark (November 14, 2019). "Longjiang-2 Impact Site Found!".