Opportunity and Spirit Mars Rovers

As an intense dust storm rages on Mars, many are wondering — how bad can a Martian storm really be?

Mission team members brought the Mars Reconnaissance Orbiter out of a precautionary "safe mode" status on Friday (Feb. 23), NASA officials said.

Opportunity has rolled through the coldest and darkest parts of the Martian winter in good nick, NASA officials said.

Giant deposits of ice may not lie hidden under the surface of Mars, between its equator and poles, as recently suggested, a new study finds.

A striking panorama by NASA's Mars rover Opportunity shows a crater-rim notch that may have been carved by liquid water long ago.

Two craters on two different worlds that were visited by two NASA missions have now been linked to mark the 45 years between the two explorations.

NASA's Mars rover Opportunity has reached its next destination — a valley called Perseverance, where the long-lived robot will scour the surface for clues about how the vast crevice formed.

A new photo shows just how improbable the Mars rover Opportunity's hole-in-one landing in January 2004 really was.

NASA's veteran Mars rover Opportunity has been driving across the Red Planet's surface for more than 13 years, but it's not done exploring yet.

A bombardment of asteroids on a once-icy ancient Mars may have created vast oceans of liquid water, which persisted for 200 million years.

Opportunity began climbing up a 30-degree slope known as Knudsen Ridge late last month, in an effort to reach and study rocks that may have been exposed to liquid water billions of years ago.

It may be fighting age-related issues, but Opportunity certainly isn't done with Mars yet.

Acid fog may once have eaten away rocks on Mars, researchers say.

It's New Year's Day on the Red Planet today and NASA is celebrating in style with an epic three-day party in Mars itself … Mars, Pennsylvania, that is.

NASA's newest Mars probe recently made a risky dive into the Red Planet's upper atmosphere to learn more about how the planet's climate changed over time.