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 ...

The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is ...

The Fermi Paradox ponders an endlessly fascinating question: If so many worlds exist in the universe, why haven’t we detected any sign of extraterrestrial life? A possible reason, called the ...

Sometimes it seems like we got to the galactic party late and everyone has already gone home. Our species only figured out how to get into orbit within the last century. Since then, we’ve flown ...

Hunting for alien civilizations isn't a matter of just waiting around for them to show up; it's the business of combing through enormous volumes of data to look for peculiar signals. When you purchase ...

Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations have phoned home. Researchers from the Search for ExtraTerrestrial ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

Elon Musk reacts to a resurfaced video with a four-word tweet, reaffirming his long-term vision for travel beyond the confines of our solar system. Learn more about Musk’s vision of finding alien life ...

After searching 100,000 galaxies for signs of highly advanced extraterrestrial life, a team of scientists using observations from NASA's WISE orbiting observatory has found no evidence of advanced ...