In one of the most baffling discoveries of the last decade, scientists have found a clue in a cave to how life might survive ...

Scientists may need to broaden their horizons in their search for alien life.

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar fingerprints of biology, researchers are training algorithms to spot the deeper ...

For many years, astronomers have been looking for extraterrestrial life. In doing so, astronomers have narrowed their search to a small “habitable zone” around stars.

A "crowdsourced" project in which home computer users were enlisted to help analyze radio signals from space is ending after more than two decades.