15 April 2009, 04:56 AM ET
"To a certain extent, you make your own luck," says Rover boss Steve Squyres. The bet his team places, by placing one rover down on the plains of Meridiani, begins to pay big immediately; filling in whole chapters of Mars' water story.
15 April 2009, 04:53 AM ET
Yes, they're identical twins. But they've gone in very different directions; done diverse things, in distinctive ways. Members of the Rovers' human family describe dealing with these two robotic characters in their singular situations on Mars.
14 April 2009, 10:53 AM ET
"You really get the sense you can feel those Rovers," claims Arthur Amador as he and other mission managers put themselves in their robotic children's' places: Safe driving from 100 million miles away, across a gulf of complex software and hardware.
14 April 2009, 10:04 AM ET
How does it feel to be standing on another world; one you've thought and dreamed about for decades? Emotional stories of the most poignant pictures from the Mars Exploration Rovers' Panoramic Cameras told by Jim Bell, imaging leader.
14 April 2009, 09:32 AM ET
NASA's Mars Exploration Rover Spirit mysteriously rebooted its computer twice over the weekend; mission controllers are examining data sent back by Spirit to see if they can diagnose the problem behind the glitch.
14 April 2009, 07:28 AM ET
It's a nasty surprise. Scientists target what they think is an old lake-bed. But all Spirit can find is volcanic lava; at least at first. Then their luck changes...
01 April 2009, 09:36 AM ET
Spirit looks back on tracks, sees bright dirt churned up by wheel.
30 March 2009, 09:19 AM ET
Spirit and Opportunity head for next targets; how long they'll last is anyone's guess.
19 March 2009, 04:19 PM ET
ESA's Mars Express finds concentration of rust in Aram Chaos crater.
18 March 2009, 06:12 PM ET
Opportunity's camera caught its first glimpse of the rover's next target, Endeavour Crater.
13 March 2009, 02:07 PM ET
Update for Google Mars 3-D gives access to raw spacecraft data from NASA.
06 March 2009, 09:46 AM ET
The 10 most groundbreaking science missions NASA's ever sent to space.
05 March 2009, 04:01 PM ET
Loose soil piled against a low plateau has blocked NASA’s Mars Exploration Rover Spirit from taking the shortest route to its summer destinations.
19 February 2009, 06:40 PM ET
The Mars rover Spirit more power under its hood thanks to some Martian winds.
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.