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.
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).
Late-afternoon shadows add punch to a false-color vista of Endeavour Crater on Mars from NASA's Opportunity rover.
Engineers are installing the "nose cone" around NASA's NuSTAR, a black hole hunter. The mission is scheduled to launch no earlier than June 13.
A planet with a tail? NASA's Kepler mission has found evidence for what may be a disintegrating planet.
NASA's Cassini spacecraft beams back closest images of Methone as it approaches Saturn's largest moon, Titan.
The Herschel Space Observatory has discovered a giant, galaxy-packed filament ablaze with billions of new stars.
Observations from NASA's Wide-field Infrared Survey Explorer (WISE) have led to the best assessment yet of our solar system's population of potentially hazardous asteroids.