If nonliving materials can produce rich, organized mixtures of organic molecules, then the traditional signs we use to ...

A new study referencing a past NASA Cassini observation found the presence of 'slushy tunnels' in Saturn's largest moon Titan ...

Matt is the heart of innocence inside the war in Falling Skies. Maxim Knight plays Matt with curiosity and quiet courage.

Humans have long imagined life on Mars, but what if the red planet actually delivered life to Earth in the first place?

Europa has a vast, saltwater ocean beneath its icy shell, with more than twice the amount of water in all of Earth’s oceans ...

For decades, the search for life beyond Earth has focused on distant exoplanets and the rusty plains of Mars. Now, a small ...

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

Futurist Michio Kaku sees humans doing ballet on Mars and projecting their brains into the cosmos. And aliens? Oh, they're ...

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

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

The faraway moon has 'a slushy high-pressure ice layer' similar to the melting Arctic that could hide extraterrestrial life.