As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...

A group of Chinese scientists is diving deep into the cosmos in search of alien radio signals from the TRAPPIST-1 star system, which might house planets that could support life. This is no small feat, ...

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

When interstellar object 3I/ATLAS was scanned for alien technology, scientists ran the most sensitive search ever attempted.

The search for extraterrestrial intelligence (SETI) has yet to detect alien technosignatures like radio waves, but the cosmos is vast, and there are plenty of places left to look. New research ...

The interstellar object 3I/ATLAS showed no signs of alien technology, according to sensitive radio observations conducted by scientists.

The SETI Institute continues to answer the age-old question: “Are We Alone?” From celebrating 40 years of groundbreaking research to exploring the potential of AI in extraterrestrial communication, ...

The Fermi Paradox, first devised by physicist Enrico Fermi in the 1950s, asks why we haven’t detected alien civilization yet, despite the vast universe teeming with countless potentially habitable ...

Estimating the chance of getting a message from life beyond Earth, say within the next decade, isn’t easy. Even the best experts are reluctant to offer precise odds. “Anybody who gave you a figure ...

On August 15, 1977, the Big Ear Radio Telescope in Delaware, Ohio, received the most powerful signal it would ever detect during its decades of observations. The signal lasted just 72 seconds, but ...