The Hubble Telescope is the first major infrared-optical-ultraviolet telescope to be put into orbit around the Earth. The telescope gives us the clearest pictures of the Earth ever in mankind’s history. The telescope is named after the American Astronomer Edwin P. Hubble. In the 1920’s, he found galaxies beyond the Milky Way and discovered that the Earth was uniformly expanding.
The Reflecting Telescope:
The Reflecting Telescope was constructed in 1913 and 1915. The telescope has a concave mirror at the end of its tube. The mirror receives light, focuses an image and reflects the image back to the eyepiece. The eyepiece is mounted on the side of the telescope so the viewer will not block the light path.
The Refracting Telescope:
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