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Astronomer
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Mathematics
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Copyright informationCOPYRIGHT 2002 The Gale Group Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Astronomer
An astronomer is a person who studies everything above Earth's atmosphere. The field of astronomy is so broad that no one person can hope to be fluent in all aspects. Most astronomers specialize in one of several branches of astronomy. Astrophysicists study the origin and evolution of stars. Planetary geologists study the formation of planets. Cosmologists study the origin, evolution, and ultimate fate of the universe.
Astronomers rarely have the opportunity to study astronomical objects directly. They must depend on various forms of electromagnetic radiation received from distant objects. However, much information can be extracted from the radiation through ...
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