The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...

Since the 1960s, scientists working with SETI (Search for Extraterrestrial Intelligence) have been monitoring the universe for artificial radio signals. The idea is simple. If another civilization ...

Add Yahoo as a preferred source to see more of our stories on Google. “If you found out we weren't alone, if someone showed you, proved it to you, would that frighten you?” the official logline reads.