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Comet is a 1985 popular-science book by Carl Sagan and Ann Druyan.[1] The authors describe the scientific nature of comets, as well as their varying roles and perceptions throughout history. The evolution of human understanding of comets is also detailed, and thinkers and astronomers such as Edmond Halley, Immanuel Kant, and William Huggins are discussed.

Comet (Carl Sagan book).jpg
Cover of the first edition
Authors Carl Sagan
Ann Druyan
Country United States
Language English
Subject Comets
Publisher Random House
Publication date
Media type Print (Hardcover and Paperback)
Pages 398
ISBN 978-0-394-54908-8

The publication of the book was months ahead of the 1986 appearance of Halley's Comet.