Space Shuttle Atlantis (STS-125) launched for the fifth and final Hubble Servicing Mission #OTD in 2009.
Over 5 spacewalks, the crew replaced 2 instruments and repaired 2 others, bringing @NASAHubble to the apex of its scientific capabilities!
More: https://go.nasa.gov/3B7Bx3O
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About - Hubble Servicing Missions | Servicing Mission 4
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