Debates over extraterrestrial life and unidentified flying objects have taken on a new political dimension in the United States.

A dip in Earth's gravity field beneath Antarctica is helping scientists track deep-Earth changes over tens of millions of years.

Aliens exist – they just haven't visited Earth, a NASA veteran has claimed. Dr Gentry Lee has worked at the US space agency since 1968, when he first got involved with the Viking mission to Mars. He ...

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

On a podcast, former President Barack Obama was asked, “Are aliens real?” His response: “They’re real. But I haven’t seen them. And they’re not being kept in Area 51. There’s no underground facility.

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

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.

With the release, the American public could learn what, if anything, the government has documented about the unexplained ...

There are things the NASA chief has "come across in the job that he can’t explain," but aliens are not among them.

Disclosing government documents about UFOs won't mean much without hard physical evidence for alien spaceships or alien ...

Elio's' Domee Shi and Madeline Sharafian discuss how they put their stamp on Pixar's Oscar-nominated animated feature, from sci-fi inspirations to a new aspect ratio.