Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

When the U.S. was born, humanity was still seven years away from balloon-borne flight. Where might we be another 250 years from now, should the nation be fortunate enough to survive that long?

When people ask what the “most Fourth of July movie ever made” is, there’s usually one obvious answer: “Independence Day. ” ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

"NASA is uncertain as to when … human-rating certification for the Starliner will be obtained." When you purchase through ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

This transcript was created using speech recognition software. While it has been reviewed by human transcribers, it may contain errors. Please review the episode audio before quoting from this ...

The Pentagon's latest release of declassified Unidentified Anomalous Phenomena files places a spotlight on reports and recordings from the Northeastern United States, including two videos documenting ...