| "Do you have any proof that the content of this page exists?"|
This page cites no sources regarding its context. It is recommended to cite all sources possible before false and unverifable material is removed.
Carl Sagan was a prominent astrobiologist and promoter of SETI. He also helped Frank Drake write the Arecibo Observatory message that was beamed into space in 1974. He also was famous for writing the book Pale Blue Dot which was his vision for the human race in the future.