Credit: NASA/JPLPublic Domain — NASA Media Usage Guidelines
ASTEROID
Gaspra
The first asteroid ever visited by a spacecraft — Galileo flyby, October 1991.
Orbits Sun
About Gaspra
951 Gaspra is an S-type main-belt asteroid that on 29 October 1991 became the first asteroid ever visited by a spacecraft, when NASA’s Galileo flew past it on its way to Jupiter.
Physical Properties
6 km
7.042 h
0.22
Orbit
Sun
2.21 AU
0.173
4.1°
3.29 yr
Gallery
Hand-picked mission imagery of Gaspra sourced from NASA and partner archives. Click any photo for full resolution and source attribution.
Asteroid 951 Gaspra, imaged by Galileo during its 1991 flyby.
NASA/JPL · Public Domain u2014 NASA Media Usage Guidelines
Imagery on this page is provided by the original mission teams. Full attribution terms: Image Rights & Credits.
