Non-exhaustive list of artificial objects that are travelling faster than the Sun’s escape velocity: they are on their way to leave the solar system.

Although both Voyager 1 and 2 have left the heliosphere to coast into interstellar space (in August 25, 2012 and November 5, 2018 respectively), they will physically leave the solar system after going past the Oort Cloud in several thousands of years. There are no means of tracking the spent stages and mission-related debris (e.g. de-spin weights) but they are probably on a similar trajectory.

Additionally, other objects will probably acquire enough kinetic energy to leave the Solar system after one or several close fly-bys of planets. For instance, the Ulysses Solar probe is thought to be slingshot out of heliocentric orbit during one of its next encounters with the Jovian system.

Approx. number of artificial objects: 17
Approx. total mass: 2.6 tons

COSPAR IDnametypemissionquantitymass (kg)statusdate/epoch (UTC)
1972-012CSTAR-37E (TE-M-364-4)Booster (3rd stage)PIONEER 10183.1discardedMarch 3, 1972
1972-012CYO-YO DE-SPIN MASS (STAR-37E)Cables w/ weightsPIONEER 102-discardedMarch 3, 1972
1972-012APIONEER 10 (PIONEER F)Deep space probePIONEER 101222EOM, defunctJanuary 23, 2003
1972-012APIONEER PLAQUE 1Commemorative itemsPIONEER 101-fixed to the probeJanuary 23, 2003
1973-019AYO-YO DE-SPIN MASS (STAR-37E)Cables w/ weightsPIONEER 112-discardedApril 6, 1973
1973-019APIONEER 11 (PIONEER G)Deep space probePIONEER 111222EOM, defunctSeptember 3, 1995
1973-019APIONEER PLAQUE 2Commemorative itemsPIONEER 111-fixed to the probeSeptember 3, 1995
1977-076CSTAR-37E (TE-M-364-4)Booster (4th stage)VOYAGER 2183.1discardedAugust 20, 1977
1977-076AINFRARED INTERFEROMETER SPECTROMETER AND RADIOMETER (IRIS) DUST COVERSpacecraft instrument dust coverVOYAGER 21-discarded, possibly in heliocentric orbitAugust 20, 1977
1977-076AVOYAGER 2Deep space probe VOYAGER 21735activeAugust 20, 1977
1977-076AVOYAGER GOLDEN RECORD 1 + SMALL DACRON U.S. FLAGCommemorative itemsVOYAGER 21-fixed to the probeAugust 20, 1977
1977-084CSTAR-37E (TE-M-364-4)Booster (4th stage)VOYAGER 1183.1discardedSeptember 5, 1977
1977-084AINFRARED INTERFEROMETER SPECTROMETER AND RADIOMETER (IRIS) DUST COVERSpacecraft instrument dust coverVOYAGER 11-discarded, possibly in heliocentric orbitSeptember 5, 1977
1977-084AVOYAGER 1Deep space probe VOYAGER 11735activeSeptember 5, 1977
1977-084AVOYAGER GOLDEN RECORD 2 + SMALL DACRON U.S. FLAGCommemorative itemsVOYAGER 11-fixed to the probeSeptember 5, 1977
2006-001CSTAR 48BBooster (3rd stage)NEW HORIZONS (NEW FRONTIERS 1)1123.8discardedJanuary 19, 2006
2006-001CYO-YO DE-SPIN MASS (NEW HORIZONS)Cables w/ weightsNEW HORIZONS (NEW FRONTIERS 1)2-discardedJanuary 19, 2006
2006-001ANEW HORIZONSDeep space probeNEW HORIZONS (NEW FRONTIERS 1)1401activeJanuary 19, 2006
2006-001AMEMORIAL CAPSULE (CLYDE TOMBAUGH)Burial ashes space capsuleNEW HORIZONS (NEW FRONTIERS 1)1-fixed to the probeJanuary 19, 2006
2006-001A2 CD-ROMS + FLORIDA & MARYLAND STATE QUARTERS + SPACESHIP ONE CARBON PIECE + 2 U.S. FLAGS + U.S. STAMPCommemorative itemsNEW HORIZONS (NEW FRONTIERS 1)8-fixed to the probeJanuary 19, 2006