Target Spacecraft Organization Date Type Status Notes Image Ref 21P/Giacobini-Zinner ICE (formerly ISEE3) NASA 11 September 1985 flyby success previously solar monitor ISEE3; went on to observe Halley's Comet 1978-079A 1P/Halley Vega 1 SAS 6 March 1986 flyby success minimum distance 8,890 km; previously visited Venus 1984-125A 1P/Halley Suisei ISAS 8 March 1986 flyby success 151,000 km 1985-073A 1P/Halley Vega 2 SAS 9 March 1986 flyby success minimum distance 8,890 km; previously visited Venus 1984-128A 1P/Halley Sakigake ISAS March 1986 distant flyby partial success minimum distance 6.99 million km 1985-001A 1P/Halley Giotto ESA 14 March 1986 flyby success minimum distance 596 km; went on to visit comet 26P/Grigg-Skjellerup 1985-056A 1P/Halley ICE (formerly ISEE3) NASA 28 March 1986 distant obser- vations success minimum distance 32 million km; previously visited comet 21P/Giacobini-Zinner 1978-079A 26P/Grigg-Skjellerup Giotto ESA 10 July 1992 flyby success previously visited Halley's Comet 1985-056A 45P/ Honda-Mrkos-Pajdusakova Sakigake ISAS 1996 flyby failure contact lost; previously visited Halley's Comet 1985-001A 21P/Giacobini-Zinner Sakigake ISAS 1998 flyby failure 55P/Tempel-Tuttle Suisei ISAS 1998 flyby failure abandoned due to lack of fuel; previously visited Halley's Comet 1985-073A 21P/Giacobini-Zinner Suisei ISAS 1998 flyby failure 19P/Borrelly Deep Space 1 NASA 22 September 2001 flyby success previously visited asteroid 9969 Braille 1998-061A 2P/Encke CONTOUR NASA 2003 flyby failure contact lost shortly after launch 2002-034A 81P/Wild Stardust NASA 2 January 2004 flyby, sample return success sample returned January 2006; also visited asteroid 5535 Annefrank 1999-003A 9P/Tempel Deep Impact NASA July 2005 flyby success 2005-001A Impactor NASA 4 July 2005 impactor success 73P/ Schwassmann-Wachmann CONTOUR NASA 2006 flyby failure contact lost shortly after launch 2002-034A 6P/d'Arrest CONTOUR NASA 2008 flyby failure contact lost shortly after launch 2002-034A 103P/Hartley Deep Impact (redesignated EPOXI) NASA 4 November 2010 flyby success mission extension (target changed from comet Boethin) 2005-001A 9P/Tempel Stardust (redesignated NExT) NASA 14 February 2011 flyby success mission extension 1999-003A 67P/Churyumov– Gerasimenko Rosetta ESA 6 August 2014 – 30 September 2016 orbiter success flybys of asteroids 2867 Šteins and 21 Lutetia completed; intentionally impacted at end of mission 2004-006A Philae ESA 12 November 2014 – 9 July 2015 lander success 2004-006C T.B.D. (potentially an interstellar object) Comet Interceptor ESA 2028 (launch) flyby planned flyby of a pristine comet, will initially be parked at the Sun-Earth L2 point until a suitable destination is identified [62]