Where are all the dang aliens?! Since at least the 1950s, this pervasive question has inspired a never-ending menu of creative solutions. One answer proposes something called the Great Filter. But which side are we on?
What's The Interstellar Password?
The Great Filter
Share the knowledge!
Written by Joanie Faletto August 22, 2017
Wake up with the smartest email in your inbox.
Our Best Articles Daily