Many have watched recently released UFO videos, but most still think the government knows more than it is saying.

What would aliens actually look like? While simple life forms like bacteria may be common in the universe, complex ...

For the first time in more than 15 years, the International Academy of Astronautics (IAA) Search for Extraterrestrial ...

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

From the Greys to the Nordics, these aliens appear frequently across abduction stories and science fiction tales.

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

When you're looking for signs of extraterrestrial intelligence, it helps to know what you're looking for and to go about it in the most efficient way. But work so far has generally not done so, writes ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

Do not shout ‘alien!’” Amid surge of public interest in UFOs or UAP, one group updated its rules for how news of extraterrestrials should be revealed.

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