Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

Efforts to manage invasive alien plant species in forests could be held back by a continued reliance on chemical methods, ...

A complete Cretaceous shellfish fossil. (University of Portsmouth) Nature has imbued its mothers with many surprisingly ...

Using emerging radio techniques refined during and after the Second World War, the astronomers detected a powerful radio ...

Metal spheres found on a Queensland beach are likely space debris, not extraterrestrial. The Australian Space Agency is working with international partners to confirm their origin.

Astronomers have identified GJ 3378b, a super-Earth located 25 light-years away, in the habitable zone of its star, raising ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

Last year, an interstellar traveler entered our solar system. Some speculated that it was an alien spacecraft, but it turned ...

A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

A well-worn expression among oceanographers and others who explore the watery depths of planet Earth is that we humans “know the surface of Mars better than our ocean floors.” Covering more than 70 ...

Dune: Part Two, 1917, Lincoln, Dunkirk, Avatar, There Will Be Blood, and more make up our list of the best epic movies of the ...