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

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

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

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

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

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

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 ...

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

NASA has given its Perseverance Mars rover a powerful new ability to determine its exact location on the Red Planet without ...