The United States is stepping back from the most direct test yet of possible alien biology on Mars just as new telescopes and ...

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

A megacorporation's research ship returns from a 65-year mission into deep space loaded with gooey alien specimens. But—and stop me if you've heard this one before—something goes wrong. The ship ...

Is it the invasion of the genome snatchers? Just in case the idea of aliens walking around in human skin suits wasn’t frightening enough. An outlandish study asserts that aliens might have abducted us ...