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

Donald Trump’s pledge to release official files relating to UFOs has intrigued conspiracy theorists who suspect the US government has hidden evidence of alien activity on Earth.

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

Airbnb has an “OMG” category filled with the strangest homes on the planet — and this trip put them to the test. From sleeping inside a rotating crane in Amsterdam to recreating an alien landing in a ...

The Turquoise Pool stands out as one of Mystery Cave’s most photographed and breathtaking features. This water is so clear ...

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