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.

Deep oceans of magma once sloshed about inside the crust of Mars, seismic measurements taken by NASA's InSight mission ...

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 ...

Seismic data collected by NASA suggests the amount of water hidden in the red planet's crust would cover its surface in a global ocean. Evidence is mounting that a secret lies beneath the dusty red ...

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