At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the ...

Mars is half the size of Earth and has only a tenth of its mass, but a new study shows that even such a "lightweight" planet ...

A recent photo from NASA's Curiosity rover gives an idea of what Mars would look like under skies that resemble our own on ...

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

Researchers discovered Mars subtly affects Earth’s orbit and axial tilt. These small changes help trigger ice ages and ...

It looks like NASA's Mars Sample Return mission has come to a bureaucratic end. The mission was to be the crowning ...

A Congressional bill restores funding for most NASA space science missions, but there is no money for returning samples ...

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very ...

Perseverance rover found a rock on Mars named Phippsaksla with so much iron and nickel that it could be a meteorite.

Mars looks familiar from afar, but surviving there means creating a protective oasis in a hostile world. Instead of shipping ...