Updated February 11, 2017 | Infoplease Staff
Destination: Vesta and Ceres. Launch: June 20, 2007. Arrival: Sept. 2011 (Vesta), 2015 (Ceres). Mission: To examine two of the largest asteroids and study the formation and evolution of planets.
|Herschel Space Observatory (European Space Agency)||Future Missions||Phoenix (U.S.)|