A Catholic nun made a startling assertion about UFOs, cautioning that purported alien encounters are in fact a menacing ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.” – Arthur C.

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...