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

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

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 ...

Using NASA’s ground-penetrating radar, the Perseverance rover has discovered underground remnants of an ancient river delta on Mars, providing one of the most compelling pieces of evidence that water ...

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

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

NASA’s long record of Martian exploration has trained the public to expect a steady stream of images and data from the Red Planet, not sudden silence. So when a veteran orbiter that had just helped ...

NASA Associate Administrator for the Science Mission Directorate, Dr. Nicola Fox explains an intriguing rock that the ...

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

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 ...