List of missions to comets

 As of 2013, the United States, the Soviet Union, Japan, and the European Space Agency have conducted missions to comets.

Spacecraft	Launch Date[1]	Operator	Comet	Mission	Outcome	Remarks	Carrier rocket[2]
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.[3]	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.[4]	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.[5]	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.[6]	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.[7]	Ariane 1
			26P/Grigg–Skjellerup	Flyby	Successful	Extended mission. Closest approach of 200 kilometres (120 mi) at 15:30 UTC on 10 July 1992.[7]
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[8]	Mu-3S-II
			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[8]
Deep Space 1	24 October 1998	NASA United States	107P/Wilson–Harrington[9]	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.[10]	Delta II 7326
			19P/Borrelly	Flyby	Successful	Extended mission
Stardust (Discovery 4)	7 February 1999	NASA United States	81P/Wild	Flyby	Successful		Delta II 7426
				Sample return	Successful
			9P/Tempel	Flyby	Successful	Extended mission, Stardust-NExT, to survey crater caused by Deep Impact
CONTOUR (Discovery 6)	3 July 2002	NASA United States	2P/Encke	Flyby	Spacecraft failure		Delta II 7425
			73P/Schwassmann–Wachmann	Flyby	Spacecraft failure
			6P/d'Arrest	Flyby	Spacecraft failure	Flyby provisionally scheduled at time of spacecraft's failure
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.[11][12]	Ariane 5G+
Deep Impact (Discovery 7)	12 January 2005	NASA United States	9P/Tempel	Flyby	Successful		Delta II 7925
				Impactor	Successful	Impact occurred at 05:52 UTC on 4 July 2005.
			103P/Hartley	Flyby	Successful	Extended mission (EPOXI)

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