Image: Martian sand dunes in spring

(Phys.org) —Mars' northern-most sand dunes are beginning to emerge from their winter cover of seasonal carbon dioxide (dry) ice. Dark, bare south-facing slopes are soaking up the warmth of the sun.

Clouds get in the way on Mars

The science team from the HiRISE camera on the Mars Reconnaissance Orbiter wanted to take another look at a region of icy sand dunes on Mars to look for seasonal changes as spring is now arriving on the Red Planet’s ...

Mars rover nearing marathon achievement

NASA's Mars Exploration Rover Opportunity is nearing a location on Mars at which its driving distance will surpass the length of a marathon race.

Opportunity's 7th Mars winter to include new study area

Operators of NASA's Mars Exploration Rover Opportunity plan to drive the rover into a valley this month where Opportunity will be active through the long-lived rover's seventh Martian winter, examining outcrops that contain ...

Curiosity rover sees a pixel's-worth of comet Siding Spring

When Comet Siding Spring skimmed just 84,500 miles from Mars last month, NASA's Opportunity and Curiosity Rovers – along with several orbiting Mars spacecraft – readied their cameras to record the historic flyby. Opportunity's ...

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