NASA/Jet Propulsion Laboratory scientists unveil a detail image of the massive asteroid Vesta taken on July 24, by NASA's Dawn spacecraft, seen superimposed top left for scale, during a news ... more 
NASA/Jet Propulsion Laboratory scientists unveil a detail image of the massive asteroid Vesta taken on July 24, by NASA's Dawn spacecraft, seen superimposed top left for scale, during a news conference at JPL in Pasadena, Calif., on Monday, Aug. 1, 2011. Scientist from left: Colleen Hartman, assistant associate administrator, Science Mission Directorate, NASA Washington. Christopher Russell, Dawn principal investigator, UCLA. Marc Rayman, Dawn chief engineer and mission manager, JPL. Holger Sierks, framing camera team, Max Planck Society, Katlenburg-Lindau, Germany. Enrico Flamini, chief scientist, Italian Space Agency (ASI), Rome, Italy. (AP Photo/Damian Dovarganes) less 
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Associated Press | Photo By Damian Dovarganes
Mon, Aug 1, 2011 2:41 PM EDT