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Early Observations, from Telescopes to Spacecraft: Ancient Astronomers / Modern Tools
Background


Color image of statues
Abu Simbel (Credit: Sun-Earth Day)
Black and white image of telescope
Ritchey's Reflector (Credit: CalTech)
Illustration of MESSENGER spacecraft
MESSENGER Spacecraft (Credit: NASA)


For More Information...

About Stonehenge in England: http://sunearthday.nasa.gov/2005/locations/stonehenge.htm

About the solar alignments at El Karnak in Egypt: http://sunearthday.nasa.gov/2005/locations/elkarnak.htm

About the Big Horn Medicine Wheel in Wyoming: http://sunearthday.nasa.gov/2005/locations/bighorn.htm

About Jantar Mantar in India: http://sunearthday.nasa.gov/2005/locations/jantar_mantar.htm

About Chichen Itza in Mexico: http://sunearthday.nasa.gov/2005/locations/chichen_itza.htm

About Gaocheng in China: http://sunearthday.nasa.gov/2005/locations/gaocheng.htm


Eyes on the Sky: 400 Years of Telescope Development
This seven-part series of vodcasts produced for the 2009 International Year of Astronomy offer an excellent explanation of the evolution of telescopes.

Telescopes from the Ground Up
Explore the history of telescopes, from Galileo to NASA's Great Observatories.

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Last Updated: 12 Sep 2014