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

An accounting of all the water that should have been and gone on Mars’s surface has come up with a discrepancy that shows ...

We have found more water on Mars, which could have significant implications for future exploration. A grumpy cat has been ...

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a cold, desert world within our solar system. It has a very thin atmosphere, but ...

Mars is a very dry planet with very little water in its atmosphere and hardly any clouds, so you might not expect it to have ...