A strange, gleaming rock on Mars has jolted planetary scientists out of their routines, not because it is large or dangerous, but because it appears to be wildly out of place. The object, sitting ...

From orbit high above Mars, a familiar shape has appeared in an utterly alien landscape: a vast feature that looks uncannily like a butterfly pressed into the planet’s dusty crust. Captured by NASA’s ...

A new book details the turn-of-the-century Mars craze It’s not aliens. It’s never aliens. Claims of extraterrestrial life are so common that experts now have this cheeky retort at the ready. In The ...

NASA's Perseverance Mars rover recently came across an odd rock, dubbed "Phippsaksla," that is unlike anything else the robot has found on the Red Planet. It turns out that it probably isn't from our ...