Click to open image viewer. This is the engineering prototype of the optical telescope and spectrograph, carried by the third Orbiting Astronomical Observatory (OAO III) called "Copernicus." The ...
At 6:28 a.m. EDT on Aug. 21, 1972, NASA’s Copernicus satellite, the heaviest and most complex space telescope of its time, lit up the sky as it ascended into orbit from Launch Complex 36B at what is ...
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