Mars is unique among the rocky planets, not only for its red color but also for its extreme geography. This distinctiveness ...

A new hypothesis by Michael Efroimsky of the U.S. Naval Observatory suggests that these distinct features might be due to a ...

A new map shows hidden Martian rivers stretching thousands of miles, offering fresh evidence of a warm, wet ancient Mars.

The NASA Odyssey orbiter, which launched in 2001 from Cape Canaveral, snapped a 1st-ever image of a Mars volcano peeking ...

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.

Mars (yes, the planet) has its own Grand Canyon New research is revealing similarities between Earth's Grand Canyon and ones on the red planet. ... Step 2 - unleash it on the geography of Mars.

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth?

It's been long thought that Mars shines red due to the rusted iron minerals within the dust that covers the planet -- but a study published Tuesday in the journal Nature Communications suggests ...

Following the 7-planet alignment, Mars will be visible in the sky in March. Here's everything you need to know about this cosmic spectacle and how to watch it.

The image of Mars shows off the Red Planet’s renowned colour from the viewpoint of ESA’s Rosetta mission as it flew past on February 24, 2007, en route to Comet 67P/Churyumov-Gerasimenko.

Mars (yes, the planet) ... Step 2 - unleash it on the geography of Mars. LIN: To help inform what climate might be on the early Mars. SOLOMON: And if she's right about the Martian climate, ...