A telescope is an instrument used for observing distant objects, such as stars, planets and galaxies. Using a system of lenses and mirrors, usually housed in a tubular casing, telescopes focus on the light of a distant object and use that light to create an image of the object.Amazing-Space: How Does a Telescope Work
Galileo and Telescopes
Italian researcher Galileo improved on Lippershey's original telescope design and used his telescopes to observe the sky. His observations expanded on earlier theories of heliocentrism, which placed the sun and not the earth at the center of the universe. Galileo's ideas disagreed with the teachings of the Roman Catholic Church.
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Telescope Message Boards and Blogs
South Pole Telescope: Welcome to the SPT Blog
NorCal Blogs: 400 Years of the telescope
Space.com: How to buy a telescope
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References
Fast Facts
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Types of telescopes
Refracting telescope, reflecting telescope and catadioptric telescope
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Sir Isaac Newton improved telescope design by using mirrorsTools of Cosmology: First Telescopes
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Early telescopic observations were recorded by hand
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The development of photography allowed for more accurate recording of telescopic observances
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Telescopes are mounted on a solid base to reduce shaking and improve visibility
