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

For more than six decades, astronomers have listened for possible signals from extraterrestrial civilisations, with no confirmed detection to date. A .

In the 1990s, the Central Intelligence Agency dug into all it knew about the possibility of extraterrestrial visits, ...

The president’s announcement came after he rebuked his predecessor Barack Obama for saying that aliens were “real.” Obama ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...

Human intelligence wasn’t a cosmic evolutionary fluke, some scientists say. The case against cosmic loneliness is growing.

More than 2,500 alien plant species could find suitable conditions in the Arctic, especially in northern Norway and Svalbard.

Donald Trump announced plans to release US government files on aliens and UFOs, though Barack Obama said he thinks the odds aliens have visited us is 'low' ...

Obama thinks extraterrestrials exist and he’s not the only former president to think so... here’s what the scientists believe ...

If the incumbent president is looking for someone who’s actually mishandled classified information, he ought to look in a ...

As President Donald Trump orders release of UFO files, do you believe the U.S. government has hidden evidence of ...

Trump has talked about UFOs over the years, mixing skepticism, curiosity and hints about what he’s been told.