Martian winds can have quite an impact. ESA's Mars Express has spotted them whipping up sand grains and acting as a cosmic sandblaster, carving out intriguing grooves near Mars's equator. The ridges, ...

One of the most fun and fascinating aspects of space exploration is discovering geological processes and terrain different from those found on our home planet, says Matt Balme, who is leading a team ...

Rootless cones are small volcanic landforms ranging from several to several hundred meters in diameter, formed by continuous explosions resulting from the interaction between surface lava and water ...

Add Yahoo as a preferred source to see more of our stories on Google. A portion of the view from the "Kimberley" formation on Mars taken by NASA's Curiosity rover, released by the U.S. space agency on ...

There is a lot of evidence from orbiting satellites and surface rovers indicating that liquid water was present long ago on the surface of Mars in the form of ponds, lakes, and rivers. But the idea ...