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THE HUBBLE SPACE TELESCOPE
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SERVICING MISSION INTRODUCTION
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HUBBLE DEPLOYMENT
DEPLOYMENT RELATED CONTENT

• April 24, 1990: (STS-31) Launch of Shuttle Discovery.

• April 25, 1990: Hubble Space Telescope deployed into orbit.

• June 25, 1990: Spherical aberration discovered in Hubble's primary mirror

• Later in the year COSTAR was approved. COSTAR was a complex packaging of five optical mirror pairs which would rectify the spherical aberration in Hubble's primary mirror.

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