There might be a hidden ocean's worth of liquid water below the surface of Mars, seismic evidence suggests. According to a new paper published April 25 in the journal National Science Review, ...

In a mission update late last month, Perseverance team members described the rover's most detailed look yet at a class of features called aeolian megaripples, oversized ripples of sand that can rise ...

Mars is often described as silent, barren, and still. But beneath its dusty surface and cold skies, something unusual has been happening, something that no spacecraft had ever sensed before. As NASA’s ...

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 ...