“There is a silence in the night sky that has bothered me for as long as I can remember.” That line, attributed to Richard Feynman, lands because it gets at a simple, stubborn feeling. The sky looks ...

Voyager 1 is on a journey that will outlast civilizations, outlive the Sun’s familiar neighborhood, and eventually drift into ...

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for ...

The Pentagon's release of files might help scientists shed light on unexplained phenomena and government secrets, experts said.

This search for alien intelligence goes far beyond looking for tiny microbes, focusing instead on the possibility of advanced ...