Quote by: Carl Sagan

Extraordinary claims require extraordinary evidence.

Carl Sagan

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Related Authors: Mark Twain Oscar Wilde C. S. Lewis Aristotle Ernest Hemingway Stephen Hawking Hunter S. Thompson

Author Bio

  • NameCarl Sagan
  • DescriptionAmerican astrophysicist, cosmologist, author and science educator
  • BornNovember 9, 1934
  • DiedDecember 20, 1996
  • CountryUnited States Of America
  • ProfessionCosmologist; Astrophysicist; Novelist; Planetary Scientist; Space Scientist; Popularizer Of Science; Science Fiction Writer; Science Writer
  • Awards; Pulitzer Prize For General Non-Fiction; Humanist Of The Year