16 February 2009, 11:06 AM ET
New theory proposes ice fields responsible for sulfate deposits of Meridiani Planum.
12 February 2009, 05:34 PM ET
Mounds found on Mars resemble Earth hot springs, but case isn't closed yet.
03 February 2009, 02:16 PM ET
The rover is back in operation.
02 February 2009, 05:19 PM ET
NASA and Google launched Google Mars 3D for users to explore Mars via computer.
28 January 2009, 05:49 PM ET
NASA's Mars rover Spirit is displaying odd behavior that puzzled engineers.
28 January 2009, 11:54 AM ET
NASA's Opportunity rover set new distance records on Mars during 5 years of roving.
28 January 2009, 10:37 AM ET
Spirit, the first-born of the twin Mars rovers is still going 5 years after landing.
06 January 2009, 09:14 AM ET
Researchers and rover drivers look back on their unexpected scientific harvest.
03 January 2009, 09:20 AM ET
NASA's twin rovers Spirit and Opportunity have finished their fifth year on Mars.
30 December 2008, 09:01 AM ET
Phoenix, MRO, and rovers studied Mars' surface looking for signs of water and potential habitability.
24 December 2008, 11:03 AM ET
The legacy of NASA's historic Apollo 8 mission reaches out toward Mars.
05 December 2008, 01:15 PM ET
MSL rover's delay could impact other programs, is symptom of NASA budget overruns.
20 November 2008, 10:16 AM ET
NASA reduces list of potential landing sites for Mars Science Laboratory to four spots.
12 November 2008, 03:11 PM ET
Spirit Mars rover may be facing near-death.
11 November 2008, 01:38 PM ET
Despite its early demise, Phoenix Mars Lander gathered trove of new data.
10 November 2008, 05:11 PM ET
Mission controllers lose contact with Phoenix Mars Lander, science operations over.
04 November 2008, 12:27 PM ET
Phoenix lander still communicating with Earth but power decreasing each day.
04 November 2008, 08:29 AM ET
Images give scientists more information on unusual sand features on Mars.
31 October 2008, 02:55 PM ET
A new television documentary chronicles the stunning success of NASA's twin Mars rover.
30 October 2008, 09:56 AM ET
Poor weather, dwindling power at Phoenix landing site forces spacecraft into safe mode.
29 October 2008, 11:26 AM ET
Phoenix scientists begin shutting down heaters to keep lander alive longer.
28 October 2008, 04:19 PM ET
MRO finds more recently-deposited water-bearing minerals on Mars.
15 October 2008, 04:08 PM ET
Over the weekend, a dust storm blew over Phoenix's landing site, diminishing its solar power.
10 October 2008, 03:44 PM ET
The longest-serving Mars probe receives a two-year mission extension.
09 October 2008, 11:06 AM ET
With its time left on Mars dwindling, Phoenix investigates underneath rock.
08 October 2008, 06:55 AM ET
Setting sun, freezing temperatures will likely spell the end for Phoenix mission.
01 October 2008, 06:59 AM ET
Phoenix mission scientists will try to switch on lander's microphone, hear Mars.
29 September 2008, 05:10 PM ET
As winter approaches, Mars lander squeezing in science, turning on mic.
23 September 2008, 10:10 AM ET
NASA scientists sent commands to Phoenix to nudge aside a Martian rock.
23 September 2008, 10:05 AM ET
After a two-year stay in Mar's Victoria Crater, NASA's Opportunity rover will be moving on to an even bigger playground.
18 September 2008, 07:00 AM ET
As NASA turns 50, here's a look at some of its most memorable missions.
10 September 2008, 09:16 AM ET
Phoenix team plans to get as many samples to lander as possible before Martian summer ends.
05 September 2008, 10:03 AM ET
Phoenix lander detects changes in air humidity but finds on film of water on ground.
02 September 2008, 03:49 PM ET
Phoenix images Martian clouds, analyzes deepest trench sample.
29 August 2008, 06:49 PM ET
NASA's Mars rover Opportunity is moving on after a year at Victoria Crater.
26 August 2008, 05:43 PM ET
The Mars rover Opportunity begins its ascent out of Victoria crater.