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.
…one on earth, the most advanced one on earth the arecibo telescope in Puerto Rico, it turns out that communication could be established over the astonishing distance of a thousand light years. Nasa jet propulsion laboratory California Institute of technology.