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

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 ...

The Department of Justice (DOJ) is seeking to deport an Afghan alien after filing the first-ever case in a decades-old Alien ...

When the Trump administration registered the domains Aliens.gov and Alien.gov in March, UFO conspiracy theorists wondered whether they might finally get answers they’d long awaited. But coming on the ...

The “post-detection protocols” for announcing the discovery and existence of alien life have just had their first major update in 16 years, though the all-important "no reply" rule remains in place.

The IAA SETI Committee has updated rules for evaluating and revealing the detection of extraterrestrial intelligence. A University of Manchester astronomer has led a major international overhaul of ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life. Tardigrades—a type of invertebrate ...