Orbiting Solar Observatory | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-11-19

This is an audio version of the Wikipedia Article:
Orbiting Solar Observatory

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SUMMARY
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The Orbiting Solar Observatory (abbreviated OSO) Program was the name of a series of American space telescopes primarily intended to study the Sun, though they also included important non-solar experiments.  Eight were launched successfully into Low Earth orbit by NASA between 1962 and 1975 using Delta rockets.  Their primary mission was to observe an 11-year sun spot cycle in UV and X-ray spectra. The initial seven (OSO 1–7) were built by Ball Aerospace, then known as Ball Brothers Research Corporation (BBRC), in Boulder Colorado. OSO 8 was built by Hughes Space and Communications Company, in Culver City, California.