Almost everyone has already heard about the fact that the Hubble telescope struggled with a poorly ground primary mirror and thus could not provide the expected quality photos. At the heart of the problem was Perkin-Elmer Corporation’s effort to innovate testing procedures. Unfortunately, however, they bet on an innovative but complex version of the so-called zero compensator, which also had inaccurately assembled optics during critical tests. Ignoring the results of the previously used method, which clearly stated that the primary mirror exhibited so-called spherical aberration, then led to the Hubble telescope suffering from a serious optical defect.
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