An X-ray telescope (XRT) is a telescope that is designed to observe remote objects in the X-ray spectrum. In order to get above the Earth's atmosphere, which is opaque to X-rays, X-ray telescopes must be mounted on high altitude rockets or artificial satellites.
Read more about X-ray Telescope: Optical Design, History of X-ray Telescopes
Famous quotes containing the word telescope:
“The telescope at one end of his beat,
And at the other end the microscope....”
—Robert Frost (1874–1963)
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