Data from Voyager 1, now more than 11 billion miles (18 billion kilometers) from the sun... is closer to becoming the first human-made object to reach interstellar space.
More than 10,000 asteroids and comets that can pass near Earth have now been discovered.
NASA's Hubble Space Telescope will have two opportunities in the next few years to hunt for Earth-sized planets
The radar imagery revealed that 1998 QE2 is a binary asteroid.
Because of GRAIL's findings, spacecraft on missions to other celestial bodies can navigate with greater precision in the future.
Mars rover, Opportunity, is driving to a new study area after a dramatic finish to 20 months on "Cape York" with examination of a rock intensely altered by water.
Apparently even NASA can't avoid the zombie craze: the agency announced their selection of programs for launch in 2017
Astronomers have spotted the most distant massive star explosion of its kind, a supernova that could help scientists better understand the nature of the universe.
We were too far away to try to stop it. All we could do is watch, helpless, horrified, and secretly delighted, as the event unfolded beyond our reach.
An analysis of a rock sample collected by NASA's Curiosity rover shows ancient Mars could have supported living microbes.
The space agency will hold a press conference to reveal the results of the analysis of the grey-green dust it drilled from a rock on 8 February.
The nearest potentially habitable, Earth-like planet may be a scant 13 light-years away
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.
43-55 of 55