Front Cover
Headline, 1997 - Comets - 398 pages
Comet is a complete overview of the history of mankind's relationship with these visitors from deep space and a scientific exploration of their origins, nature and future

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User Review  - jfe16 - LibraryThing

Journey through space with a comet, then explore the myths that arose around these celestial travelers. In this informative book, readers can investigate the scientific findings surrounding comets ... Read full review

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User Review  - StephenScience - LibraryThing

I purchased this book more than once. I bought the book before Halley's Comet returned in 1986. February in Portland is perhaps the worst place and time to comet watch and I was greatly disappointed ... Read full review

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About the author (1997)

A respected planetary scientist best known outside the field for his popularizations of astronomy, Carl Sagan was born in New York City on November 9, 1934. He attended the University of Chicago, where he received a B.A. in 1954, a B.S. in 1955, and a M.S. in 1956 in physics as well as a Ph.D. in 1960 in astronomy and astrophysics. He has several early scholarly achievements including the experimental demonstration of the synthesis of the energy-carrying molecule ATP (adenosine triphosphate) in primitive-earth experiments. Another was the proposal that the greenhouse effect explained the high temperature of the surface of Venus. He was also one of the driving forces behind the mission of the U.S. satellite Viking to the surface of Mars. He was part of a team that investigated the effects of nuclear war on the earth's climate - the "nuclear winter" scenario. Sagan's role in developing the "Cosmos" series, one of the most successful series of any kind to be broadcast on the Public Broadcasting System, and his book The Dragons of Eden (1977) won the Pulitzer Prize in 1978. He also wrote the novel Contact, which was made into a movie starring Jodie Foster. He died from pneumonia on December 20, 1996.

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