Newfound rocks on Mars suggest the planet may have once sported an oxygen-rich atmosphere, making it more Earth-like and hospitable to life than previously thought. A collection of rocks scattered ...

A collection of rocks scattered on an ancient shoreline on Mars might indicate that the Red Planet was once far more Earth-like than scientists previously thought. The rocks, discovered by NASA's ...

Sharmila Kuthunur is a Seattle-based science journalist covering astronomy, astrophysics and space exploration. Follow her on X @skuthunur A collection of rocks scattered on an ancient shoreline on ...

An unexpected tool is giving us new insight into the fine structure of the outer layers of Mars. Using meteorites that were ...

When a meteorite smashed into Mars 11 million years ago, debris landed on Earth as meteorites, giving an unparalleled look at ...

Celestial Mystery Mysteries abound on the planet Mars — from the tantalizing traces of ancient riverbeds on its surface to ...

“Martian meteorites are the only physical materials we have available from Mars,” said James Day from UC San Diego, who led ...

Mar. 13, 2024 — A deeply eroded giant volcano, active from ancient through recent times and with possible remnants of glacier ice near its base, had been hiding near Mars' equator in plain sight.

Astronomers have long puzzled over the origins on Phobos and Demos, the red planet's strangely-shaped moons. Now they are ...