19 March 2013, 09:15 AM ET
A minor computer error has sent Curiosity back into safe mode.
19 March 2013, 09:08 AM ET
The 3-mile-high Mount Sharp is Curiosity's ultimate destination.
19 March 2013, 08:59 AM ET
Nearly 2,000 scientists at the Lunar and Planetary Science Conference this week will reveal the latest finds on the moon, Mars and the solar system.
18 March 2013, 10:15 AM ET
This spectacular space wallpaper shows Hubble’s view of massive galaxy cluster MACS J0717.5+3745. The large field of view is a combination of 18 separate Hubble images.
18 March 2013, 10:05 AM ET
Comet ISON may become one of the brightest comets ever seen this coming November.
18 March 2013, 09:56 AM ET
Canadian astronaut Chris Hadfield is decked out in green on the International Space Station.
18 March 2013, 09:50 AM ET
The massive solar eruption on March 15 sent charged particles toward the Earth at 3.2 million mph, NASA says.
18 March 2013, 08:01 AM ET
Gone are the days of dreaming of little green men on the Red Planet.
16 March 2013, 07:31 PM ET
Grasshopper reached an altitude of 263 feet before returning to Earth in a soft landing.
16 March 2013, 07:17 PM ET
The celestial duo will dance together Sunday evening.
15 March 2013, 03:41 PM ET
The Keck Observatory will be looking for more donations to counteract a freeze on federal grant spending.
15 March 2013, 11:58 AM ET
This spectacular space wallpaper is a map of a section of the Universe showing the positions of thousands of galaxies that were measured as part of the VIPERS survey with ESO’s Very Large Telescope.
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.