Mars may have been a "blue planet" with an ocean the size of today's Arctic Ocean, a new study suggests.

Mars’s Coloe Fossae reveals a landscape shaped by ancient ice ages, with deep valleys, cratered terrain, and frozen debris flows preserved from a time when the planet’s climate dramatically shifted.

Mars has an active, electrically charged surface where dust storms and spinning dust devils regularly move and reshape the ...

An overview of the most important structures on Mars and their relation to one another. Enjoy! Judge sides with ACLU in major blow to ICE After winning his first Oscar, Tom Cruise kept repeating the ...

Mars is known for its barren desert landscape and dry climate. But two recent studies go beneath the surface: They explore the interior of the red planet using seismic data from NASA's InSight mission ...

With its hills and distant mountains, the landscape seems somehow familiar yet at the same time eerily alien. The striking image was captured just recently by NASA’s Curiosity rover as it continues ...

For years, NASA's Curiosity Mars rover has been exploring the slopes of Mount Sharp inside the Red Planet's Gale Crater, looking for clues about Mars' watery past. Recently, Curiosity turned its ...

Add Yahoo as a preferred source to see more of our stories on Google. Mars, with its rust-hued surface, is known as the red planet for a reason. Along the way, Curiosity has made some extraordinary ...

DeVorkin, David H. 2011. [Book review] "Finding Meaning in the Martian Landscape,” review of Marcia Lane, Geographies of Mars: Seeing and Knowing the Red Planet,." American Scientist, 99, 262–263.