Black holes can release enormous energy through hot disks, surrounding plasma and powerful jets, enough to support a civilization far beyond ours. Any giant collector would release unused energy as ...

One of the challenges of searching for technosignatures (i.e., signs that intelligent life somewhere in the universe has ...

Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that ...

Imagine receiving a message from another world. Not from a distant galaxy millions of light years away, but from a planet ...

Looking ahead: Existing radio surveys may contain signals that were never recognized as potential technosignatures. New ...

Attention human. You are receiving an interstellar radio transmission. And it could be coming from one of the nearest exoplanets, Proxima Centauri b. What conditions make this planet a candidate for ...

Chilling Reasons We Haven’t Made Contact With Aliens Yet For decades, the idea of making contact with extraterrestrial life ...

Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got stranded on earth when his alien compadres abandoned their botany mission. In ...

“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 ...

In 1950, famed astrophysicist Enrico Fermi posed a profound question during a casual lunch with colleagues: Where is everybody? In other words, if there’s an extremely high probability that advanced ...

Add Yahoo as a preferred source to see more of our stories on Google. Tardigrades—a type of invertebrate also known as water bears—are the only animals observed to survive the intense radiation and ...

For decades, SETI researchers have focused on finding narrow-band radio signals that might stand out from the natural universe. But what if an advanced civilization that wanted to communicate would ...