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Telescopes collect light from faint and far-off objects. This light is made brighter so that we can see further into space than we can with just our eyes. There are three types of telescope now used today. These are called Refracting, Newtonian and Schmidt-Cassegrain telescopes. The objects that they look at can be seen through an eye-piece or the light can be collected by a detector to be studied.
Click on the links below to find out more about telescopes
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Authors: Carolyn Brinkworth and Claire Thomas
Last updated: July 2001