Astronomers may have already scanned millions of more stars than they thought, but that might lead to new ways to hunt for ...

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

A provocative theory circulating among artificial intelligence researchers suggests that once machines achieve human-level intelligence and beyond, they might create something entirely unexpected: a ...

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

Brian Cox reveals the one question he’d ask aliens on SmartLess, while Disclosure Day explores humanity’s place in the ...

Experts stress need for transparency while aiming to prevent premature announcements and protect scientists ...

They’re hole-ar powered. If super-advanced alien civilizations exist, they would surely require insane amounts of energy to ...

Most alien-signal searches listen to a narrow part of the radio spectrum, but astronomers are now testing higher frequencies that have barely been explored. A first search using archived ALMA ...

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 ...

The Fermi paradox asks why we haven’t found aliens yet. Scientists say the answer may lie in timing, technology, and the vast scale of space.

Astronomers may have been listening for alien civilizations in only a small slice of the radio spectrum while overlooking a largely unexplored range of higher frequencies. Using archived data from the ...

In 1961, Dr Frank Drake proposed a probabilistic, though highly speculative, equation to determine the number of intelligent ...