The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

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 ...

You know how we're all dreaming about living on other planets someday? Well, turns out, to make that happen, we need to get creative with some enclosed ecosystems called biospheres. Enter Biosphere ...

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 ...