Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

What does it take to detect a radio signal sent by extraterrestrial life to Earth? Two decades of work involving radio ...

"Awards like these are a critical component of our incubator program for future missions, which combines government ...

After reviewing almost 30 years of signals, University of California Berkeley researchers have identified 100 mysterious, ...

For decades, scientists have tried to turn the question of alien life from late-night speculation into something you can ...

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

A crowd-sourced search for alien intelligence called SETI@Home is in its final stages, analyzing 100 radio signals of ...

Now, scientists at UC Berkeley have announced they have distilled 21 years of data into a "shortlist" of 100 mysterious radio ...

The Deep Space Network (DSN) is just the sort of tool aliens could one-day detect, transmitting from Earth. Credit: NASA/JPL What if the first signal ever detected from an alien lifeform wasn't a ...

Real scientific efforts at universal communication have also involved mathematics and numbers. The covers of the Golden ...