STS-103

STS-103, the 96th launch of the Space Shuttle and the 27th launch of Space Shuttle Discovery, was Hubble Space Telescope Servicing Mission 3A ('SM3A'). It launched from Kennedy Space Center, Florida, on 19 December 1999 and returned on 27 December 1999 and was the last Shuttle mission of the 1990s. It was the only mission to span Christmas after being delayed by 13 days for technical and weather reasons.

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