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Carl Sagan  

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  • Carl Sagan, born in Brooklyn, New York, was an American astronomer, astrophysicist, and exobi-ologist who wrote the introduction for the first edition of Stephen Hawking's A Brief History of Time, published in 1988. Around age 5 Sagan became interested in astronomy, and his curiosity was further kindled by reading a library book about stars. [Source: Encyclopedia of Time: Science, Philosophy, Theology, & Culture; Sagan, Carl (1934–1996)]

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https://concepts.sagepub.com/social-science/concept/Carl_Sagan

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