TIL that Earth has sent out a radio signal towards a possible life-containing exoplanet named Gliese 581c. It is supposed to reach the planet by late 2029.

http://en.wikipedia.org/wiki/A_Message_from_Earth



Submitted January 26, 2015 at 05:53PM by Wincko http://www.reddit.com/r/todayilearned/comments/2tpqaf/til_that_earth_has_sent_out_a_radio_signal/