This site describes what early civilizations knew about our solar system and how astronomy developed over the centuries. The early theories describing the movements of the planets, development of the first telescopes, and discoveries of the planets Uranus, Neptune and Pluto are some of the topics addressed in Discovery. Here you will find the Pluto discovery plate, the photographic plate taken the day Pluto's position was discovered by Clyde Tombaugh. Other topics covered at this site include: the Renaissance with the ideas of Copernicus and Kepler; the age of the telescope, which traces its development; Galileo, who is credited with discovering the moons of Jupiter, phases of Venus, and the craters on the Moon; and planetary satellites.


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Space Science,Astronomy,Middle School,NSDL,Chemistry,High School,Science,oai:nsdl.org:2200/20061003232725765T,NSDL_SetSpec_dlese.org,History and philosophy of science,Geoscience,Space science,Physics,Physical sciences,History/Policy/Law,History of science,Space sciences,Social Sciences,Earth science



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