| Directory > Kids and Teens > People and Society > Biography > Astronomers Ptolemy
An astronomer, mathematician and geographer who lived in Alexandria, Egypt. We know very little
more of his life. He classified the Greek geocentric view of the universe, and calculated the
apparent motions of the planets.
http://space.about.com/library/weekly/aa103102a.htm
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Kepler, Johannes
The son of a mercenary soldier and an innkeeper's daughter who later became a brilliant and
prolific mathematician and astronomer, and creator of the Three Laws of Planetary Motion.
http://space.about.com/library/weekly/aa090702a.htm
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Brahe, Tycho
Discover more about this Danish father of modern Astronomy who made precise, comprehensive
astronomical measurements. His data was superior to all other measurements made until the invention
of the telescope.
http://space.about.com/library/weekly/aa051602a.htm
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Kepler, Johannes
German astronomer Johannes Kepler was a supporter of the Copernican model of the universe. Find out
more about his life and work.
http://sirius.phy.hr/~dpaar/fizicari/xkepler.html
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Halley, Edmond
Sir Edmond Halley did more than calculate the return of the comet named after him. Learn more about
his work with the motion of stars, and his study of Mercury and Venus.
http://sirius.phy.hr/~dpaar/fizicari/xhalley.html
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Galilei, Galileo
A multimedia biography of the famous astronomer Galileo. Learn more about his many contributions to
science.
http://galileo.imss.firenze.it/museo/b/egalilg.html
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Herschel, Caroline
A short biography of the first woman to discover a comet.
http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/herschel.html
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Hubble, Edwin
A biography of a man who expanded our view of the universe.
http://www.pbs.org/wnet/hawking/cosmostar/html/cstars_hubble.html
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Adams, John Couch
The first to mathematically predict an unknown planet, his calculations were ignored and someone
else discovered Neptune.
http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/adams.html
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Bell Burnel, Jocelyn
The radio astronomer who discovered what turned out to be neutron stars, also called pulsars.
http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/bell.html
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Brahe, Tycho
Danish astronomer who did the most accurate measurements of the sky ever made without a telescope.
http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/brahe.html
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Chandrasekhar, Subrahmanyan
The man whose name means "shining" in Sanskrit figured out exactly what makes stars
shine.
http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/chandra.html
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Le Verrier, Urbain
The French astronomer whose mathematical predictions led to the discovery of Neptune.
http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/leverrier.html
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Tombaugh, Clyde
The discoverer of Pluto started out as an amateur who built his own telescopes.
http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/tombaugh.html
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StarChild: Dr. Carl Sagan
Tells about the science who sought to make the universe cleaerer to the ordinary person.
http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/sagan.html
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Famous Astronomers
Features profiles of various astronomers of fame, from Galileo to Ptolemy.
http://library.thinkquest.org/23830/astronomers.htm
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StarChild: Dr. Stephen Hawking
Tells about the physicist known for his study of black holes.
http://starchild.gsfc.nasa.gov/docs/StarChild/whos_who_level2/hawking.html
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