Scientists propose a simple but powerful new method for detecting traces of alien biology, whether on Jupiter's icy moons, in ...

Researchers say a biocontainment facility on the Moon could be humanity's last line of defense against potential future alien ...

Advanced aliens, if they exist, may have no physical bodies at all and could be built from materials nothing like human flesh ...

Add Yahoo as a preferred source to see more of our stories on Google. A megacorporation's research ship returns from a 65-year mission into deep space loaded with gooey alien specimens. But—and stop ...

Harvard astrophysicist Avi Loeb has floated the provocative idea that humans might themselves be alien‑made 'autonomous probes,' built through advanced synthetic biology rather than evolving entirely ...

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 ...

The global dispersal of marine and estuarine crustaceans / James T. Carlton -- Human-mediated spread of alien crabs / Annette Brockerhoff and Colin McLay -- The global spread of the Chinese mitten ...