The best reason to send humans to Mars isn’t for guts or glory—or the construction of colonies to safeguard against existential Earth-bound risks. Instead it’s to answer a single, simple question: Is ...

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 ...

The search for alien life just got more exciting. NASA’s Perseverance rover, which has been exploring Mars since 2021, has discovered rock samples that could be the most convincing evidence yet of ...