06 March 2013, 09:27 AM ET
NASA's Messenger probe snapped photos of 100 percent of the planet's surface.
06 March 2013, 09:20 AM ET
Asteroid 2013 ET is about the size of a football field.
06 March 2013, 09:15 AM ET
Comet Siding Spring is expected to come within 30,000 miles of Mars in October next year.
06 March 2013, 09:08 AM ET
Europa's ocean seems to have contact with the surface, making all sorts of chemical reactions possible.
05 March 2013, 11:58 AM ET
The online Slooh Space Camera will offer a live webcast of the sun at 2:30 p.m. ET (1930 GMT) today.
05 March 2013, 11:50 AM ET
A distant galaxy spotted by the Hubble Telescope looks like an alien.
05 March 2013, 10:36 AM ET
Our star's current lull may just be the calm between two storms.
05 March 2013, 10:26 AM ET
This space wallpaper shows a deep-field image of what is known as a supercluster of galaxies — a giant group of galaxy clusters which are themselves clustered together.
05 March 2013, 10:19 AM ET
The 1-ton robot is out of safe mode and may be back in action as early as this weekend.
05 March 2013, 09:46 AM ET
A new proposal would establish a European space junk-surveillance program.
04 March 2013, 11:21 AM ET
The sun and its nearest twin, Alpha Centauri A, share a quirk: a puzzling cool layer in their wispy atmospheres.
04 March 2013, 10:27 AM ET
The spacecraft was captured by the space station's robotic arm
01 March 2013, 05:37 PM ET
The proposed spacecraft could hop from one piece of junk to the next without burning much fuel.
01 March 2013, 05:25 PM ET
The X-15 test program offers lessons for the emerging suborbital spaceflight industry.
01 March 2013, 03:31 PM ET
A thruster problem on SpaceX's Dragon spacecraft has delayed the spacecraft's arrival at the space station by at least a day.
01 March 2013, 02:49 PM ET
A thruster issue just after launch is stalling SpaceX's Dragon capsule flight to the International Space Station.
28 February 2013, 11:20 PM ET
This space wallpaper shows an artist’s impression of the surface of the distant dwarf planet Makemake.
28 February 2013, 06:34 PM ET
A comet proposed to have crashed into North America almost 13,000 years ago didn't do so, according to new research.
28 February 2013, 06:31 PM ET
An unusual vertical column hides the black hole in an X-ray binary system with a rare orientation.
28 February 2013, 06:24 PM ET
China will send three astronauts to space this summer on a docking mission to its orbiting lab, according to news reports.
28 February 2013, 06:16 PM ET
The waxing gibbous moon will be really close to the bright star Spica.
28 February 2013, 04:03 PM ET
NASA's twin Van Allen Probes discovered a short-lived radiation belt that flared up in 2012.
28 February 2013, 01:53 PM ET
Scientists on skidoos search for space rocks.
28 February 2013, 01:19 PM ET
A nonprofit group and two asteroid-mining companies are joining in.
28 February 2013, 12:52 PM ET
Commercial vehicles will have to be much safer than the space shuttle, experts say.