NASA's exoplanet-hunting Kepler Space Telescope has completed its mission and is starting an extended mission.
New stars can be seen bubbling up around the remains of a dramatic stellar explosion in this new portrait from two space telescopes.
NASA will host a media teleconference at 11 a.m. PST (2 p.m. EST) on Thursday, Nov. 15, to provide an update about the Curiosity rover's mission to Mars' Gale Crater.
A pinch of fine sand and dust became the first solid Martian sample deposited into the biggest instrument on NASA's Mars rover Curiosity: the Sample Analysis at Mars, or SAM.
The NASA Mars Odyssey orbiter has resumed duty after switching to a set of redundant equipment that had not be used since before the spacecraft's 2001 launch.
While Arctic sea ice cover is declining dramatically under the effects of climate change, Antarctic sea ice cover has increased in recent years. A new study examines why.
A new, interactive version of a timeline of NASA's Cassini mission to Saturn is now available online.
A new NASA-funded study finds future warming of Earth's climate is likely to be on the high side of current projections.
After three months working on "Mars time," the team operating NASA Mars rover Curiosity has switched to more regular hours, as planned.
Scientists working with NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif., have obtained several radar images depicting near-Earth asteroid 2007 PA8.
Comet 168P/Hergenrother is breaking up, right before our very eyes.
NASA's car-sized rover, Curiosity, has taken significant steps toward understanding how Mars may have lost much of its original atmosphere.
A new analysis led by NASA's Jet Propulsion Laboratory has estimated how much the growth of plants worldwide is limited by the amount of nutrients available in their soil.
Solar systems with life-bearing planets may be rare if they are dependent on the presence of asteroid belts of just the right mass, according to a new study.
Like a Hollywood starlet constantly retouching her makeup, the giant asteroid Vesta is constantly stirring its outermost layer to present a young face.
NASA's Mars rover Curiosity has completed initial experiments showing the mineralogy of Martian soil is similar to weathered basaltic soils of volcanic origin in Hawaii.
NASA satellites are observing extremely dangerous and historic Hurricane Sandy as it moves into the northeastern U.S.
NASA's Mars Rover Curiosity on Sol 82 (Oct. 29, 2012) photographed diverse rocks in the "Rocknest" area and prepared for overnight soil sample analysis.
NASA will host a media teleconference at 11:30 a.m. PDT (2:30 p.m. EDT) on Tuesday, Oct. 30, to provide an update about the Curiosity rover's mission to Mars' Gale Crater.
Researchers at JPL and Caltech have developed a method to use a specialized NASA 3-D imaging radar to characterize the oil in oil spills like the 2010 BP Deepwater Horizon spill.