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

A recent theory proposed by a NASA scientist suggests that extraterrestrial civilizations may not possess the wildly advanced technology that many UFO enthusiasts expect. This perspective, which ...

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

According to popular media, the search for alien life involves advanced technology, space exploration and sometimes even government conspiracies and secret programs. But according to University of ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A new planetary habitability model could make the search for aliens more efficient by quickly identifying rocky worlds unlikely to ...

For decades, scientists searching for extraterrestrial intelligence have focused their telescopes on a small slice of the ...

Add Yahoo as a preferred source to see more of our stories on Google. Just over 40 years ago, in his novel Contact, astronomer Carl Sagan imagined what it would be like to detect radio signals beamed ...

Scientists are pouring their resources into searching for signs of life on other planets—but how might extraterrestrial life find us? An experiment spearheaded by the SETI Institute studies how alien ...

Astronomers have been scanning the skies for alien radio signals for decades, but so far they’ve heard nary a peep (with one possible exception). But according to a recent study, that could be because ...