A Chinese rover found evidence of ancient beaches on Mars, suggesting the planet once had vast oceans 4 billion years ago. The discovery of sloping sand layers beneath the surface provides new ...

The holes, aka pits, are located on the flanks of ancient volcanoes in Mars's Tharsis region, the largest volcanic region on the red planet and home to some of the biggest volcanoes in our solar ...

An annotated version of the image points out landmarks like Olympus Mons, the largest volcano on Mars—and the largest known volcano in the solar system. For reference, Olympus Mons is roughly ...

Interesting Engineering (IE) walks you through ten spectacular geological features on Mars so you can decide which one astounds you the most. Dubbed the largest volcano in the solar system ...