ufos extraterrestrials

The U.S. government has officially started to explain some of the most infamous UFO encounters of the last decade, with China and weather balloons as top offenders.

A recent report about pitch-black "phantom" UFOs in the skies over Ukraine has been discredited by Ukrainian scientists and by Harvard astrophysicist Avi Loeb.

NASA's highly anticipated UFO study is about to begin, and we now know who will conduct it.

In a new paper, scientists outline how we can look for clues any alien visitors to our solar system may have left behind.

Ancient microbes triggered a climate change on Mars that made the planet less habitable, which may have ultimately led to their extinction, a new climate modeling study suggests.

The knowledge that we're not alone in the universe could have far-reaching effects on our view of ourselves and our place in the universe. But it's tough to get more specific than that.

In 1961, the US astrophysicist Frank Drake, who passed away on Sept. 2 at the age of 92, came up with an equation to estimate the number of intelligent civilizations in the Milky Way right now.

The U.S. Navy admitted that it has unreleased videos of UFO encounters but refused to share them due to 'national security concerns.'

Dozens of 'phantom' and 'cosmic' UFOs have been detected in the skies over Ukraine, a new government report claims.

We haven't found life on Mars yet, but one researcher believes we might be able to detect evidence of it on planets outside of the solar system within the next quarter of a century.