
The James Webb Space Telescope (JWST), previously known as Next Generation Space Telescope (NGST), is a planned space observatory optimized for observations in the infrared, and a scientific successor to the Hubble Space Telescope and the Spitzer Space Telescope. The main technical features are a large and very cold 6.5-meter (21 ft) diameter mirr...
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http://en.wikipedia.org/wiki/James_Webb_Space_Telescope

A large, space-borne telescope, of unprecedented sensitivity and resolving power, which will carry out observations at wavelengths between those at the red end of the visible spectrum and the middle of the infrared range. It is named after James E Webb, NASA Administrator during the Apollo lunar exp...
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http://www.daviddarling.info/encyclopedia/J/James_Webb_Space_Telescope.html
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