After 40+ years of development, design, construction, and delays, the Hubble Space Telescope launched on April 24, 1990, on Space Shuttle Discovery. About a month later, on May 20, its Wide Field and Planetary Camera saw first light, capturing a 30-second exposure around 8.2-magnitude star HD96755, located in open cluster NGC 3532 within southern constellationContinue reading “May 20, 1990: Hubble’s first light”
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