Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

A new study allegedly finds that one of Saturn's moons may contain 'slushy tunnels' that can potentially host alien life. The ...

In the many decades of NASA exploration, there has only been one detection that got on that scale. It was collected by the ...

The unusual specimen raised eyebrows because it appeared capable of causing levitation. An official investigation has not ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...