Their species name is well known, but until recently we’ve understood very little for certain about Homo habilis. Columnist ...

If the government confirms nonhuman intelligence, psychological research offers clues about the range of ways humans might ...

A viral podcast moment last month reignited speculation about extraterrestrials and prompted President Donald Trump’s commitment to kickstarting the release of government files on flying saucers. But ...

Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

DENVER—Last month, President Donald Trump took to social media with an announcement that he would direct the Pentagon and other federal agencies to “begin the process” of disclosing government files ...

Beyond that, in the decades to come, we might be able to see the colours of an exoplanet’s surface, and determine if plant life might be present there. And then we can search for changes in a planet’s ...

A Catholic exorcist priest claims aliens are actually demons, arguing UFO abductions mirror diabolical attacks described in ...

The tiniest life forms are also among Earth’s toughest, from near-invincible tardigrades to extremophilic microbes that ...

Notorious alien crank and Harvard physics professor Avi Loeb has noticed a troubling cognitive trend among the AI users in his life.

Hardy bacteria in a lab survived pressures comparable to an asteroid strike on the red planet, suggesting a hypothetical scenario in which our planet was seeded with life.

Our search for extraterrestrial life has turned up empty, perhaps because technologically advanced civilizations are doomed ...