April 7 1991 Twenty-five years ago NASA launched the Compton (no not that Compton) Gamma Ray Observatory an astronomical satellite that transformed our knowledge of the high-energy sky. In this view taken on April 7 1991 from the aft flight deck window o
Hubble’s First Servicing EVA: Astronaut F. Story Musgrave, anchored on the end of the Remote Manipulator System (RMS) arm, prepares to be elevated to the top of the Hubble Space Telescope (HST) to install protective covers on the magnetometers.
Astronaut F. Story Musgrave, anchored on the Space Shuttle Endeavor's robotic arm, prepares to be elevated to the top of the Hubble Space Telescope during Hubble's first servicing mission in Astronaut Jeffrey Hoffman, inside the …
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James Webb Space Telescope completes final cryogenic testing