A NASA rover has discovered signs of an ancient river beneath Mars' surface, using ground-penetrating radar to reveal buried ...

NASA has not reestablished contact with its MAVEN Mars orbiter since a planned communications blackout ended Jan. 16.

NASA’s twin ESCAPADE spacecraft will uncover how the Sun stripped Mars of its atmosphere. Mars is a very different world ...

By Will Dunham WASHINGTON, March 18 (Reuters) - Using ground-penetrating radar, NASA's Perseverance rover has detected ...

A rugged Martian landscape that resembles a vast spiderweb when seen from orbit is offering new insights into the planet’s ...

NASA has offered a sneak peek inside its Mars simulation habitat where four volunteers have now spent 150 days isolated from the outside world. By living within the confines of the 1,700-square-foot ...

NASA photos appear to show a pyramid-like structure the same size as Giza on Mars, prompting speculation about whether an ...

The latest evidence that Mars was once a warmer, wetter world comes from a surprising place—the hidden subsurface depths of ...

Ground-penetrating radar reveals a long-lost river system hidden under the surface of Mars. (NASA/JPL/UCLA/UiO/ETH Zurich) ...

Mars used to have a warmer and wetter climate, which changed after billions of years because the Sun's solar wind removed ...

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian ...