When you're looking for signs of extraterrestrial intelligence, it helps to know what you're looking for and to go about it ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” That line, attributed to Richard ...

Just over 40 years ago, in his novel Contact, astronomer Carl Sagan imagined what it would be like to detect radio signals ...

Physicist Richard Feynman argued that fundamental limits of physics, biology, and time make interstellar contact between civilizations effectively impossible. He cited vast distances, the speed of ...

Dr. Michael P. Masters suggests UFOs are time-traveling humans from the future, monitoring their ancestors amid potential ...

From still lakes to shifting shores, waves play a bigger role than we think—even on worlds we’ve never directly observed.

A physicist has argued that fundamental cosmic constraints make visits from alien civilizations to Earth effectively impossible. Factors such as vast interstellar distances, the speed of light as a ...

If an alien in the Alpha Centauri star system were craving pizza, it would take tens of thousands of years to deliver it ...

An analysis suggests that while interest in UFOs has persisted since the U.S. government released related videos, no actual ...

James Gunn stepped in to squash a Superman fan discussion, but in this case, the answer was obvious all along.

In Rough Edges, Mike Rothschild writes about fringe groups, conspiracy theories and how the Internet broke our brains. This ...

Revisit the 2010s' most notorious sci-fi anime flops and marvel at how science fiction can go so terribly wrong.