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Carl Sagan

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Carl Edward Sagan (9 November, 193420 December, 1996) was an American No-Maj astronomer, astrophysicist, cosmologist, author, science popularizer, and science communicator in the space and natural sciences. During his lifetime, he published more than six-hundred scientific papers and popular articles and was author, co-author, or editor of more than twenty books.

Carl Sagan wrote the introduction of A Brief History of Time, by Stephen Hawking[1]


Notes and references

  1. Harry Potter and the Prisoner of Azkaban (film) - Chapter 4 (The Leaky Cauldron)

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