Add Yahoo as a preferred source to see more of our stories on Google. Beneath the surface of Mars lie an array of mysterious "blobs" that might hold clues about the earliest days of our solar system.

One of the great unsolved problems in modern planetary science is written on the surface of Mars. Mars has canyons that were carved by rivers, so it was once warm enough for liquid water. How—and ...

Mars may once have hidden enormous seas of magma beneath its surface, giving the Red Planet a much more complex interior than ...

Despite its dry, dusty surface and thinner atmosphere, Mars may have more in common with Earth than scientists previously thought. In a new study, researchers at the University of Rochester—including ...

Liquid water once shaped the Martian landscape dramatically, carving valleys, filling lakes, and forming vast oceans. Billions of years ago, during Mars' early days known as the Noachian and Hesperian ...