Hubble Space Telescope (HST)
- Hubble Space Telescope (HST)
-
Most sophisticated optical observatory ever placed into orbit around Earth.
Because it is above Earth's obscuring
atmosphere, it can obtain images much brighter,
clearer, and more detailed than ground-based telescopes can. Named for
Edwin Hubble, it was built under
NASA supervision and deployed on a 1990 space-shuttle mission. The reflector telescope's mirror optics gather light from celestial objects and direct it to an array of cameras and spectrographs (see
spectroscopy). A defect in the primary mirror initially caused it to produce fuzzy images; in 1993 another shuttle mission corrected this and other problems. Subsequent missions to the HST have been for maintenance, repairs, and instrument upgrades.
Cutaway of the NASA Hubble Space Telescope, revealing the Optical Telescope Assembly, the heart of ...
Courtesy of Hughes Danbury Optical Systems, Inc.
* * *
Universalium.
2010.
Look at other dictionaries:
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Cutaway of the NASA Hubble Space Telescope, revealing the Optical Telescope Assembly, the heart of ...Courtesy of Hughes Danbury Optical Systems, Inc.