NASA's Stardust NExT mission principal investigators Joseph Veverka, left, and Dr. Donald Brownlee react as the sound of the Stardust NExT craft is broadcast during a news conference at the California... more 
NASA's Stardust NExT mission principal investigators Joseph Veverka, left, and Dr. Donald Brownlee react as the sound of the Stardust NExT craft is broadcast during a news conference at the California Institute of Technology's Jet Propulsion Laboratory in Pasadena, Calif., Tuesday, Feb. 15, 2011. Barreling along at 24,000 mph, NASA's Stardust craft swoop within 110 miles of comet Tempel 1, close enough to take high-resolution images of the surface. less 
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Associated Press | Photo By Damian Dovarganes
Thu, Feb 17, 2011 10:44 AM EST