Let's talk Great Filter

system Closed February 18, 2017, 1:40pm 71

This topic was automatically closed after 360 days. New replies are no longer allowed.

Topic		Replies	Views
Why not take a moment to ponder the Fermi Paradox? boing	70	2048	December 6, 2021
Where are all the aliens? Video about the Fermi Paradox boing	51	3168	May 16, 2015
Astronomer Seth Shostak: We'll find ET by 2037! boing	34	6991	September 18, 2013
Animation: "Why aliens probably exist" boing	13	1868	December 20, 2014
NASA's Kepler spacecraft sends home data suggesting odds of life out there better than we thought boing	6	1519	November 10, 2013