In 1974 Carl Sagan Sent This Message Into Space: In 2001 We Received This Response | Collective-Evolution

Believe it or not?

http://www.collective-evolution.com/2015/06/09/in-1974-carl-sagan-sent-this-message-into-space-in-2001-we-received-this-response/


"We often know more than we can tell .." MIchael Polanyi