A scientist at NASA's Jet Propulsion Laboratory in Pasadena, Calif., has accurately determined the mass of a nearby asteroid from millions of miles away.
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NASA Scientist Figures Way to Weigh Space Rock
NASA to Hold News Conference About NuSTAR Launch
NASA will hold a news conference on Wednesday, May 30 at 10 a.m. PDT (1 p.m. EDT) to discuss the upcoming launch of the Nuclear Spectroscopic Telescope Array (NuSTAR).
Dark Shadows on Mars: Scene from Durable NASA Rover
Late-afternoon shadows add punch to a false-color vista of Endeavour Crater on Mars from NASA's Opportunity rover.
