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| The Corrective Optics Space Telescope Axial Replacement (COSTAR) mission in 1993 to fix the Hubble Space Telescope's problems with spherical aberration was delivered by Ball Aerospace using optics made by the former ASML Optics division in Richmond, California. That division is now part of Zygo and is performing strongly. Meanwhile, the COSTAR optics were removed from Hubble in 2009 and are now on view at the Smithsonian's National Air and Space Museum in Washington DC. Credit: NASA/ESA. |
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