15 March 2013, 11:51 AM ET
Russian and European space officials signed a deal to launch a Red Planet orbiter in 2016 and a rover in 2018 as part of the ExoMars program.
15 March 2013, 11:44 AM ET
Curiosity is not yet ready to start the trek to Mount Sharp.
15 March 2013, 11:37 AM ET
The Virtual Telescope Project in Italy will webcast live views of Comet Pan-STARRS at 1 p.m. EDT (1700 GMT).
14 March 2013, 03:36 PM ET
We have the technical know-how, but getting the world to come together in time could be tough.
13 March 2013, 06:02 PM ET
Study of plant reproduction in zero gravity raises questions about sex in space.
13 March 2013, 02:12 PM ET
Quantum satellites may beam down powerful data encryption keys.
13 March 2013, 11:53 AM ET
Most attempts to define it come up short, scientists say.
13 March 2013, 08:04 AM ET
A new exhibition in Santiago's Metro opened Monday, focusing on radio astronomy.
13 March 2013, 07:56 AM ET
The Red Planet was habitable long, long ago, scientists say.
13 March 2013, 07:38 AM ET
The NASA/ESA Hubble Space Telescope took this striking space wallpaper of the planetary nebula NGC 5189. The intricate structure of the stellar eruption looks like a giant and brightly coloured ribbon in space. This image was released Dec. 18, 2012.
12 March 2013, 01:45 PM ET
A rock sample collected by Mars rover Curiosity revealed ancient Mars could have supported microbes.
12 March 2013, 12:43 PM ET
Solar sailing holds promise for interstellar flight, though daunting challenges must be overcome.
12 March 2013, 12:34 PM ET
When finished, the ALMA observatory in Chile will see protoplanets being born, researchers say.
12 March 2013, 10:05 AM ET
The moon maybe the perfect guide to spot Comet Pan-STARRS in the night sky on Tuesday night (March 12).
12 March 2013, 09:36 AM ET
Even if the mini monsters were created, they'd be destroyed before gobbling anything up.
11 March 2013, 05:34 PM ET
The violent shaking during the Tohoku earthquake two years ago today sent acoustic waves into space.
11 March 2013, 11:39 AM ET
This space wallpaper combines Hubble observations of M 106 with additional information captured by amateur astronomers Robert Gendler and Jay GaBany. Gendler combined Hubble data with his own observations to produce this stunning color image.
11 March 2013, 11:09 AM ET
The first spacecraft to orbit Mercury will have to shut down soon, unless it gets a mission extension.
11 March 2013, 11:01 AM ET
The January incident is the fourth known case of an active satellite being struck by orbital debris.
11 March 2013, 10:50 AM ET
The asteroids included small space rocks and one asteroid the size of a city block, all of them discovered just days ago.
11 March 2013, 10:40 AM ET
We have yet to detect a signal from an alien civilization -- so scientists are thinking up novel (and often extreme) ways we may make first contact.
11 March 2013, 01:13 AM ET
Abell 68, pictured in this stunning space wallpaper here in infrared light, is a galaxy cluster.
11 March 2013, 01:03 AM ET
In this space wallpaper, a Landsat image from July 19, 2011 shows Lake Powell, a reservoir on the Colorado River in the southwestern United States.
10 March 2013, 07:10 PM ET
The Russian nanosatellite was struck on Jan. 22 by space junk from China's 2007 anti-satellite weapon test.
10 March 2013, 06:47 PM ET
Impacts may have delivered the complex molecules needed for life to get started.