STS-31, the #SpaceShuttle mission that deployed the #Hubble Space Telescope, launched #OTD in 1990: April 24.
However, the astronauts didn't deploy the observatory until April 25.
My view -- which is not held by the good folks at STScI -- is that Hubble's birthday is thus the 25th; I liken it to April 24th is when Hubble's parents drove to the hospital / went into labor, but the 25th is when it was born. #Astrodon#HistoryOfAstronomy#NASA
@jknodlseder@kellylepo A fair question, although -- to stretch my analogy far beyond breaking -- I reckon that that is perhaps more akin to baby's first words. (And with HST you have the added wrinkle of first light or first light after COSTAR?)
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