Are aliens real? The question has animated conspiracy theories for decades and enthralled at least one former president of ...

Aliens exist - they just haven't visited Earth, NASA veteran Dr Gentry Lee has claimed.

If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 ...

Planet K2-18b, an apparent water world 124 light years away, has been seen as a promising location in the search for aliens, ...

Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

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

NASA has given a hilarious response to President Trump following his demand for UFO files - and it dashes hopes of an ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

No, Barack Obama did not just reveal the existence of E.T. As The Daily Beast’s (self-appointed) UFO beat reporter, I took special notice when the former president declared that “aliens are real” ...

Could alien signals have already reached Earth undetected? - If advanced alien civilisations exist and have contacted Earth, they are more likely rare, scientists say ...