# List of missions to comets

As of 2024, the United States, the Soviet Union, Japan, and the European Space Agency have conducted missions to comets.

## List of missions

| Spacecraft | Launch date | Operator | Comet | Mission | Outcome | Remarks | Carrier rocket |
| ICE (ISEE-3) | 12 August 1978 | NASA United States / ESA | 21P/Giacobini–Zinner | Flyby | Successful | Extended mission; Closest approach of 7,862 kilometres (4,885 mi) at 11:02 UTC on 11 September 1985. Also made distant observations of 1P/Halley in May 1986. | Delta 2914 |
| Vega 1 (5VK No.901) | 15 December 1984 | Soviet Union | 1P/Halley | Flyby | Successful | Flew past Halley after visiting Venus; closest approach 8,889 kilometres (5,523 mi) at 07:20:06 UTC on 6 March 1986. | Proton-K/D-1 |
| Vega 2 (5VK No.902) | 21 December 1984 | Soviet Union | 1P/Halley | Flyby | Successful | Flew past Halley after visiting Venus; closest approach at 07:20 UTC on 9 March 1986. | Proton-K/D-1 |
| Sakigake (MS-T5) | 7 January 1985 | ISAS Japan | 1P/Halley | Flyby | Successful | Closest approach of 6.99 million kilometres (4.34 million miles) at 04:18 UTC on 11 March 1986. | Mu-3S-II |
| Giotto | 2 July 1985 | ESA | 1P/Halley | Flyby | Successful | Closest approach of 605 kilometres (376 mi) at 00:03:02 UTC on 14 March 1986. | Ariane 1 |
| Giotto | 2 July 1985 | ESA | 26P/Grigg–Skjellerup | Flyby | Successful | Extended mission. Closest approach of 200 kilometres (120 mi) at 15:30 UTC on 10 July 1992. | Ariane 1 |
| Suisei (PLANET-A) | 19 August 1985 | ISAS Japan | 1P/Halley | Flyby | Successful | Closest approach of 152,400 kilometres (94,700 mi) at 13:06 UTC on 8 March 1986 | Mu-3S-II |
| Suisei (PLANET-A) | 19 August 1985 | ISAS Japan | 21P/Giacobini–Zinner | Flyby | Spacecraft failure (Extended mission) | Extended mission, spacecraft ran out of fuel en route; flyby had been scheduled for 24 November 1998 | Mu-3S-II |
| Deep Space 1 | 24 October 1998 | NASA United States | 107P/Wilson–Harrington | Flyby | Spacecraft failure | Spacecraft was unable to reach Wilson–Harrington due to ion engine operation being suspended while a problem with the probe's star tracker was investigated. | Delta II 7326 |
| Deep Space 1 | 24 October 1998 | NASA United States | 19P/Borrelly | Flyby | Successful | Extended mission | Delta II 7326 |
| Stardust (Discovery 4) | 7 February 1999 | NASA United States | 81P/Wild | Flyby | Successful | | Delta II 7426 |
| Stardust (Discovery 4) | 7 February 1999 | NASA United States | 81P/Wild | Sample return | Successful | | Delta II 7426 |
| Stardust (Discovery 4) | 7 February 1999 | NASA United States | 9P/Tempel | Flyby | Successful | Extended mission, Stardust-NExT, to survey crater caused by Deep Impact | Delta II 7426 |
| CONTOUR (Discovery 6) | 3 July 2002 | NASA United States | 2P/Encke | Flyby | Spacecraft failure | | Delta II 7425 |
| CONTOUR (Discovery 6) | 3 July 2002 | NASA United States | 73P/Schwassmann–Wachmann | Flyby | Spacecraft failure | | Delta II 7425 |
| CONTOUR (Discovery 6) | 3 July 2002 | NASA United States | 6P/d'Arrest | Flyby | Spacecraft failure | Flyby provisionally scheduled at time of spacecraft's failure | Delta II 7425 |
| Rosetta | 2 March 2004 | ESA | 67P/Churyumov–Gerasimenko | Orbiter | Successful | Entered orbit around 67P at 09:06 UTC on 6 August 2014. On 30 September 2016 mission ended in an attempt to slow land on the comet's surface near a 130 m (425 ft) wide pit called Deir el-Medina. | Ariane 5G+ |
| Philae | 2 March 2004 | ESA / DLR Germany | 67P/Churyumov–Gerasimenko | Lander | Successful | Carried by Rosetta. Came to rest on the surface of 67P at 17:32 UTC on 12 November 2014. Communications ceased with the loss of battery power at 00:36 UTC on 15 November 2014 and the lander began hibernating. Reactivated on solar power and briefly established contact with ground control again at 20:28 UTC on 13 June 2015, and sporadically until 9 July 2015 when the last communication was received. | Ariane 5G+ |
| Deep Impact (Discovery 7) | 12 January 2005 | NASA United States | 9P/Tempel | Flyby | Successful | | Delta II 7925 |
| Deep Impact (Discovery 7) | 12 January 2005 | NASA United States | 9P/Tempel | Impactor | Successful | Impact occurred at 05:52 UTC on 4 July 2005. | Delta II 7925 |
| Deep Impact (Discovery 7) | 12 January 2005 | NASA United States | 103P/Hartley | Flyby | Successful | Extended mission (EPOXI) | Delta II 7925 |