06 May 2011, 04:32 PM ET
Just after the anniversary of Alan Shepard's flight, scientists named a crater in his honor
29 March 2011, 09:00 AM ET
It's now been a full year since NASA's Mars rover Spirit last communicated with Earth, and the odds that the robot will ever wake up aren't looking so good.
10 March 2011, 03:49 PM ET
Analog trials like this will help prepare scientists and their gear for real missions to the Red Planet.
09 March 2011, 05:26 PM ET
NASA's Mars rover Opportunity rover has been photographed by a probe orbiting the Red Planet. The new photo shows Opportunity near the Martian crater.
25 January 2011, 05:54 PM ET
Starting next week, NASA's Mars rover Opportunity will get a temporary respite from its bossy operators here on Earth. But the rover won't be able to slack off.
05 January 2011, 05:47 PM ET
With spring on Mars in full swing, NASA is taking advantage of the Martian season's ever-longer periods of daylight to try to reawaken its stuck rover, Spirit, after months of silence.
04 January 2011, 05:58 PM ET
NASA's mired Spirit rover remains in a nine-month slumber as it begins the eighth year of its Mars mission, but its twin, Opportunity, keeps chugging along.
01 January 2011, 10:20 AM ET
A Q & A with John Callas, Mars Exploration Rover project manager, about the achievements and legacy of NASA's twin rovers Spirit and Opportunity, which dropped onto the Red Planet in January 2004.
01 January 2011, 10:20 AM ET
As folks here on Earth prepare to mark the passage of another year, two robots a world away are creeping up on a big milestone of their own: seven years on the surface of Mars.
29 December 2010, 02:01 PM ET
NASA's Mars rover Opportunity has its plans for New Year's Eve all sorted out — poking around a football-field-size crater called Santa Maria.
23 December 2010, 07:55 AM ET
Two new movie clips transport regular Earthbound folks to the Martian surface, giving them a rover's-eye view of a bluish Martian sunset and a partial solar eclipse.
22 December 2010, 11:38 AM ET
The larger of the two moons of Mars, Phobos, passes in front of the sun in this approximately true-speed movie simulation using images from the panoramic camera
on NASA's Mars Exploration Rover Opportunity.
22 December 2010, 11:23 AM ET
The sun descends to the Martian horizon and sets in this 30-second movie simulation using images from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Opportunity.
16 December 2010, 06:58 PM ET
NASA's Mars rover Opportunity is chugging toward some interesting mineral deposits on the rim of a fresh crater, guided by a sharp set of eyes from above.
10 December 2010, 07:42 AM ET
A NASA spacecraft is coming up on a record-breaking milestone: Next week, the space agency's Mars Odyssey orbiter will have worked longer at Mars than any other spacecraft in history.
22 November 2010, 07:00 AM ET
NASA's Spirit rover currently exploring Mars completed one full swing around the Sun Monday, giving researchers a year-long look at the Martian seasons.
28 October 2010, 04:51 PM ET
NASA's stuck Mars rover Spirit has found more evidence that water trickled beneath the Red Planet's surface in the past — perhaps even within the last few hundred thousand years.
08 October 2010, 07:32 AM ET
A new photo yields an up-close view of a meteorite the Mars rover Opportunity found on the Red Planet last month.
27 September 2010, 06:00 PM ET
After spending the weekend studying a meteorite on Mars, NASA's rover Opportunity headed to yet another space rock — the sixth it has discovered on the Red Planet.
21 September 2010, 06:28 PM ET
NASA Mars rover Opportunity has apparently found another meteorite on the surface of the Red Planet.
09 September 2010, 09:41 AM ET
Two years after setting out for a big Martian crater that could hold clues about the Red Planet's potential to support life, NASA's rover Opportunity has hit a milestone: It's more than halfway there.
30 July 2010, 03:40 PM ET
NASA's beleaguered Mars rover Spirit, which has been hibernating on the surface of Mars since March, is facing its toughest challenge yet – the harsh conditions of the Martian winter. And the rover may lose.
29 July 2010, 03:33 PM ET
After six-and-a-half years roaming the surface of Mars, a NASA rover has spotted its first dust devil on the red planet.
30 June 2010, 04:11 PM ET
NASA's intrepid Opportunity rover currently rolling across the surface of Mars has just caught its best-yet glimpse of its next stop – the huge Endeavour Crater.
14 June 2010, 09:45 AM ET
A small capsule containing dust from the asteroid Itokawa touched down Sunday at the Woomera test range in the Australian Outback. Launched in May 2003, Hayabusa suffered a host of technical problems and malfunctions, but in the end came home.
20 May 2010, 08:28 AM ET
NASA's long-lived twin Mars rovers Spirit and Opportunity have set a new endurance record on Mars, with Opportunity hot on the heels of its sister robot for the title of longest-running mission on the Martian surface.
14 May 2010, 09:56 AM ET
Today the European Space Agency unveiled new pictures of a windswept crater in the same region of Mars the rover Opportunity has explored. More than simply good looking, the pictures also provide scientists with new data about Martian weather.
03 May 2010, 03:31 PM ET
NASA’s Opportunity Mars rover snaps new image of Endeavour crater.
30 April 2010, 05:42 AM ET
Today marks the day that Spirit takes over the record of longest-running Mars mission if she wakes up from her winter hibernation.
26 April 2010, 07:23 AM ET
This week, the Mars rover Spirit could break Viking 1's record for longest-running Mars surface mission.
14 April 2010, 08:22 AM ET
The acidic waters that once bathed Meridiani Planum area of Mars may have been created by interaction with atmosphere.
01 April 2010, 08:09 AM ET
The Mars rover spirit skipped a phone call to Earth to say it was okay and may be hibernating for the red planet winter.
19 March 2010, 04:04 PM ET
NASA's Mars rover Spirit still has power, but temperatures are getting cold.
12 February 2010, 11:36 AM ET
NASA's Mars rover Spirit took its last few moves to get in the best possible condition for the oncoming winter.
01 February 2010, 12:24 PM ET
Rover boss Steve Squyres believes that when we can rove no more, we buckle down to do exciting stationary science. Plus WISE finds a NEO, and Proba-2 Sun science.
26 January 2010, 01:33 PM ET
The roving days for NASA’s stuck robotic explorer Spirit are likely over after more than six years rolling across the Martian surface, the space agency announced Tuesday.