US President Donald Trump said on Thursday he is ordering federal agencies to begin “identifying and releasing” government ...

Among the most persistent claims is that extraterrestrials assisted in the construction of ancient civilizations.

If life exists elsewhere in the universe, researchers at the University of Washington are finding the clues on Earth to help understand where to look for it.

Life on Earth may not have started here at all. A scientist says alien intervention is unlikely but still possible, reshaping the debate on our true origins.

If the world exploded, what proportion of the rocks floating in space would have evidence of life? (continued) ...

Fossils have a way of rewriting family trees, pulling back the curtain on creatures that feel alien and oddly familiar, like ...

While idea may violate Occam’s razor, “it remains a speculative but logically open alternative,” says biologist Robert Endres.

New method reveals chemical signs of early microbial life in ancient Earth rocks, showing photosynthesis evolved much earlier than believed.

THE prehistoric “super carnivore” megalodon was bigger than previously thought, growing to a whopping 80ft and weighing 94 ...

The combustible sedimentary rock, better known as coal, was not only crucial to the onset of advanced technology here on Earth, but it should also be key to the development of advanced E.T.s residing ...

Thousands of alien species could invade the Arctic, warns a new study. Warmer temperatures and more tourists make it easier ...

SIGNS of an alien planet that’s about the same size as Earth have been picked by up a Nasa telescope. Scientists say it might ...