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Sep 18, 2014 06:54 AM ET // Ian O'Neill
NASA's Dawn spacecraft has resumed normal operations after a high-energy particle event forced the mission to enter safe mode, knocking its ion drive offline. Continue reading →
Jan 22, 2014 01:33 PM ET // Ian O'Neill
Astronomers analyzing data from the now defunct Herschel infrared space observatory have made a huge discovery deep inside the asteroid belt -- Ceres, the largest body in the region, is generating plumes of water vapor. Continue reading →
Dec 17, 2013 04:13 PM ET // Ian O'Neill
In new images of Vesta, an unusual, yet beautiful, look at the massive asteroid's mineral history has been made possible.
Sep 20, 2012 03:48 PM ET // Irene Klotz
In a surprise finding, NASA's Dawn spacecraft has discovered the protoplanet is rich in hydrogen, which most likely was delivered by water-bearing meteorites striking the body.
Sep 16, 2011 06:53 PM ET // Jason Major
NASA has created a virtual 3D tour of the famous protoplanet.