His contributions were central to the discovery of the high surface temperatures of Venus.
He also perceived global warming as a growing, man-made danger.
He is best known for his contributions to the scientific research of extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation.
An American astrophysicist and author.
An American theoretical physicist.
An American theoretical physicist, communicator and popularizer of science.
Was a biologist from Germany known best for his work in evolution and his influential work in the history of science.
An American historian and philosopher of science.
is an American crime drama television series, that premiered on CBS on October 6, 2000.
Was a German physicist who is regarded greatly in the scientific circles for his pioneering work in multiple subjects dealing with modern science.
is an American drama-thriller television series based on the Israeli series Hatufim (English title: Prisoners of War).
was an English philosopher, statesman, scientist, jurist, orator, essayist, and author
Short about Carl Sagan
Carl Edward Sagan was an American astronomer, astrophysicist, cosmologist, author, science popularizer and science communicator in astronomy and natural sciences