Astronomy Today

Ultraviolet Space Telescopes

How does an ultraviolet telescope work?

Ultraviolet telescopes, like X-ray telescopes, need to be above Earth’s atmosphere in order to be effective. The mirror technology is about the same as that of visible light telescopes; the detectors, though, have to be specially built to be sensitive to ultraviolet light. For example, they use specially constructed charge-coupled devices (CCDs) and Multi-Anode Microchannel Arrays (MAMAs). The largest ultraviolet space telescope ever launched is the Hubble Space Telescope.


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