From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Ever partied on Mars? You can—sort of. Welcome to Mars, Pennsylvania, where every other June, this tiny borough just north of Pittsburgh goes full alien invasion for the Mars New Year Festival—a ...

SpaceX CEO Elon Musk suggested on a Wednesday episode of Senator Ted Cruz's podcast that while humans may not find living aliens on Mars, they could uncover the "ruins of a long-dead alien ...

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 ...