14 October 2014, 05:49 PM ET
At first glance you'd be forgiven for thinking NASA's Mars rover Curiosity had stumbled across a wind-rippled lake or sea at the base of Mount Sharp.
14 October 2014, 05:33 PM ET
NASA's MAVEN Mars orbiter has been busy since it arrived at the Red Planet late last month, collecting detailed data about Mars' upper atmosphere.
14 October 2014, 03:28 PM ET
Canadian astronaut Chris Hadfield shares his favorite images of Earth from space in a new book, "You Are Here: Around the World in 92 Minutes."
14 October 2014, 12:49 PM ET
Boo! An amazing new photo taken by a NASA spacecraft seems to show the sun with creepy jack-o-lantern grin just in time for Halloween.
14 October 2014, 07:37 AM ET
Scientists previously thought that the moon's volcanic activity died down a billion years ago. But new data from NASA's Lunar Reconnaissance Orbiter, or LRO, hints that lunar lava flowed much more recently, perhaps less than 100 million years ago.
14 October 2014, 07:00 AM ET
The upcoming launch, expected to take place Oct. 23 from China's Xichang Satellite Launch Center, will apparently send an experimental, recoverable probe to lunar orbit and back to validate tech needed for a lunar sample-return mission.
14 October 2014, 07:00 AM ET
Models using a century-old equation suggest that the Milky Way contains only half the dark matter than scientists had previously thought.
14 October 2014, 06:50 AM ET
A new photo of a huge galaxy cluster under construction in the early universe shows star formation happening in unexpected places, scientists have found.
13 October 2014, 05:46 PM ET
The first meeting of 'The Astronaut Wives Club' — the made-for-TV-version, that is — has convened in New Orleans. Filming has begun on the 10-episode ABC series, which tells the real story of the women who stood beside the United States' first spacemen.
13 October 2014, 05:20 PM ET
Rosetta team members have named the 82-foot-tall boulder on Comet 67P/Churyumov-Gerasimenko "Cheops," after the largest pyramid in Egypt's famous Giza complex.
13 October 2014, 02:04 PM ET
NASA needs your help to name a new robot, and you could win some money doing it.
13 October 2014, 07:00 AM ET
Comet Siding Spring, also known as C/2013 A1, will miss the Red Planet by just 87,000 miles (140,000 kilometers) at 2:27 p.m. EDT (1827 GMT) Sunday. For comparison, the moon orbits Earth at an average distance of 239,000 miles (384,600 km).
13 October 2014, 12:38 AM ET
NASA's Hubble Space Telescope has spotted a few objects that the New Horizons probe might be able to explore after it zooms past the Pluto system during a highly anticipated flyby on July 14, 2015.
12 October 2014, 11:03 AM ET
From spacewalks and sun tentacles to a wild total lunar eclipse, it's been an amazing week for space photography. Check out our favorite space images
12 October 2014, 10:44 AM ET
Monday marks Columbus Day for people in the United States, but did you know there was a lunar twist to the famous explorer's journey?
12 October 2014, 08:44 AM ET
The U.S. Air Force's mysterious X-37B space plane will return to Earth this week, possibly Tuesday (Oct. 14), after 22 months in orbit on a secret mission.
10 October 2014, 05:56 PM ET
A NASA astronaut living and working on the International Space Station captured an incredible image of Typhoon Vongfong brewing in the Western Pacific.
10 October 2014, 04:43 PM ET
Nichelle Nichols promotes the next-generation NASA capsule and its possible missions.
10 October 2014, 04:03 PM ET
A new role-playing game set for release next year aims to bring fans of the series 'Firefly' back into the space western universe years after the show went off the air.
10 October 2014, 01:03 PM ET
NASA announced Oct. 9 that it has lifted an order that halted work on commercial crew contracts awarded last month to Boeing and SpaceX, saying that delaying work during an ongoing contract protest could jeopardize the operation of the ISS.
10 October 2014, 12:07 PM ET
In an event titled “Go for Payload,” the California Science Center added a Spacehab module to the open hold of the retired space shuttle Endeavour.
10 October 2014, 11:47 AM ET
Forget Saturn's rings. The jewel of the solar system has another stunning feature that only faraway spacecraft can see clearly: a hexagon-shaped vortex that's been swirling above Saturn's north pole for at least 30 years.
10 October 2014, 11:45 AM ET
An excerpt from Marc Kaufman's 'Mars Up Close: Inside the Curiosity Mission,' which was published in August 2014 by National Geographic.
10 October 2014, 10:30 AM ET
NASA's fleet of Red Planet orbiters will be hiding behind the planet when the debris from Comet Siding Spring comes swarming in. The comet will fly within 87,000 miles of the planets surface on October 19th, 2014.
10 October 2014, 10:06 AM ET
Australian astronomers have 'weighed' dark matter associated with the Milky Way, with a surprising result. There is half as much as previously thought, easing the fit between theory and observation.
10 October 2014, 08:01 AM ET
The moon, the famous Pleiades star cluster and the red star Aldebaran will dance together in the night sky this Saturday.
10 October 2014, 08:00 AM ET
NASA made a cameo in the first teaser trailer for the new, highly secretive Disney movie "Tomorrowland."
10 October 2014, 08:00 AM ET
Researchers are developing new types of robotic systems inspired by elephant trunks, octopus arms and giraffe tongues. These flexible, maneuverable "tentacle robots" could have a variety of space applications, scientists say.
09 October 2014, 11:17 PM ET
This space wallpaper from the NASA/ESA Hubble Space Telescope shows a cosmic oddity, dwarf galaxy DDO 68.
09 October 2014, 05:06 PM ET
NASA's fleet of Red Planet orbiters and rovers will be watching on Oct. 19, when Comet Siding Spring zooms within 87,000 miles of Mars.
09 October 2014, 02:15 PM ET
A strange exoplanet 260 light-years from Earth is showing signs of water vapor in its atmosphere, despite scorching temperatures that are hot enough to melt steel, scientists say.
09 October 2014, 02:01 PM ET
A densely packed star-forming galaxy is reproducing the events that brought light to the early universe.