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X-Ray Telescope |
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| In order to observe celestial X-ray sources, astronomers use a special kind of telescope launched into orbit, because the earth’s atmosphere absorbs X rays from space. X rays are so short that lenses do not refract, or bend, them as they do ordinary light. However, X rays can be reflected if they make grazing contact with a metal surface. An X-ray telescope uses sets of nested, slightly tapering cylinders to focus X rays onto a detector. | ||||||
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| Appears in these articles: | ||||||
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| Space Telescope; Astronomy; Observatory; X-Ray Astronomy | ||||||
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