Comet
Wild 2
TypeComet
Mass~2 × 10¹³ kg
Diameter5 km
Orbital Radius515 million km
Orbital Period2,334 days
Known Moons0
Surface Gravity~0.0001 m/s²
Average Temp-70 °C
AtmosphereH2O, organics (coma)
Discovered ByPaul Wild
Discovery Year1978
About Wild 2
Stardust flew through its coma in 2004 and returned comet grains to Earth in 2006. The samples carried glycine, an amino acid. Its surface pockmarks are up to 100 m deep.
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