NASA has offered a sneak peek inside its Mars simulation habitat where four volunteers have now spent 150 days isolated from ...

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

New clues found underneath Jezero Crater.

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

Using ground-penetrating radar, NASA's Perseverance rover has discovered subsurface traces of an ancient river delta on Mars.

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

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

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 ...

For nearly a month, NASA has been scrambling to make contact with a spacecraft in orbit around Mars that abruptly fell silent. The space agency lost communication with the MAVEN probe (short for Mars ...

The so-called Candor Tetrahedron. (NASA/JPL-Caltech/UArizona) It would be tempting to assume there's nothing much of note ...