Carl Edward Sagan' (November 9, 1934 - December 20, 1996) was an American uranologist, Astrophysicsastrophysicist, Cosmologycosmologist, writer, discipline populariser and discipline contact in uranology and normal study fields. His donations remained principal to the finding of the elevated top temperatures of Venus. However, he is finest familiar for his donations to the methodical study of alien existence, containing new demo of the manufacture of amino acids as of fundamental chemicals by ra