Another possible biosignature gas is behaving strangely in Mars' air.
The Mars rover Curiosity, also known as the Science Laboratory, will launch in late 2011 and land on the Red Planet in August 2012.
Curiosity is the last functioning rover on Mars, and its lonely mission has taken the robot to a steep mountain in the middle of a vast crater.
NASA's Curiosity Mars rover performed some rare science work recently, then took a bit of a break to take in the austere beauty of its surroundings.
NASA's Curiosity Mars rover may have just captured a snapshot of the Red Planet's long-ago Great Drying.
Mars mission managers are dealing with the biggest source of electromagnetic interference in the solar system.
It's been seven years since NASA's Curiosity rover touched down on Mars, but the robot geologist is still tackling big questions about Red Planet rocks.
Curiosity will be coming 'round the Martian mountain when it comes — and a colorful new animation highlights where exactly the mission is headed.
NASA's Curiosity rover on Mars got lucky last month and spotted not one but two eclipses — in less than two weeks, one for each of the Red Planet's moons.
After a brief staycation caused by a technical glitch, the Curiosity rover is back to gathering data on a clay-rich region of Mars, according to a NASA statement released today (Feb. 28).
We all edit our selfies to capture our best sides, and the Curiosity rover on Mars is no different, as shown in a new "selfie" NASA released to mark the rover's last days at Vera Rubin Ridge.
The mission of the one-ton Mars Curiosity rover is to find out if the Red Planet is, or was, capable of supporting life.
NASA's Mars rover Curiosity has apparently found something intriguing on Mars and the space agency will unveil the discovery to the public in a live webcast Thursday (June 7).
This week, NASA's nuclear-powered Curiosity rover celebrated its 2,000th Martian day (or Sol), but don't expect a pit stop any time soon.
NASA's Curiosity rover on Mars is learning a hard lesson of Red Planet road trips: If you drive long enough, you'll wear out your wheels.
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