Carl Sagan
c/carl-sagan
Carl Edward Sagan was an American astronomer, planetary scientist and science communicator.
c/carl-sagan
Carl Edward Sagan was an American astronomer, planetary scientist and science communicator.
…a factor of two in decades is the most you could possibly hope for. I'd like to read a quick quotation from general Douglas MacArthur. He said the masses of the world are far ahead of their leaders in this subject. I believe it is the massed opposition…