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Carl Sagan

Carl Sagan. Overview. Astronomer. Astrobiologist. Author of popular science books. Promoted searching for extraterrestrial life. Planets. First to hypothesize that Saturn’s moon Titan and Jupiter’s moon Europa possessed oceans.

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Carl Sagan

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  1. Carl Sagan

  2. Overview • Astronomer. • Astrobiologist. • Author of popular science books. • Promoted searching for extraterrestrial life.

  3. Planets • First to hypothesize that Saturn’s moon Titan and Jupiter’s moon Europa possessed oceans. • Furthered insights involving Jupiter’s atmosphere, Mars’ seasonal changes, and that Venus’ atmosphere was extremely hot and dense.

  4. Extraterrestrial Life • Sagan always insisted on searching for life in the universe. • Urged scientists to use large radio telescopes to look for signals from extraterrestrial lifeforms. • Wanted probes sent to other planets.

  5. UFOs • Sagan had interests in UFOs and urged the science community to look into them, mainly because they were so popular.

  6. Books • Sagan wrote many outstanding books. • Cosmos - Expanded on his TV program. • The Dragons of Eden: Speculation on the Evolution of Human Intelligence - Won a Pulitzer Prize. • Contact – Best-selling science fiction novel that was turned into a movie.

  7. Cosmos on PBS • Sagan had an Emmy-winning show called Cosmos on PBS. • It covered many scientific subjects, including the origin of life and Earth’s place in the universe. • http://video.google.com/videoplay?docid=1175883507954918704&q=Cosmos

  8. Bibliography • Davidson, Keay. Carl Sagan: A Life. Canada: John Wiley & Sons, Inc., 1999. • http://en.wikipedia.org/ • Poundstone, William. Carl Sagan: A Life In The Cosmos. New York: Henry Holt and Company, 1999. • Spaulding, Nancy E. and Samuel N. Namowitz. Earth Science. Canada: McDougal Littell, 1994. • Tyson, Neil DeGrasse and Donald Goldsmith. Origins. New York: W. W. Norton & Company.

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