A Week of Work on the Hubble Telescope
Astronaut John Grunsfeld performs work on the Hubble Space Telescope as the first of five STS-125 spacewalks kicks off a week's worth of work on the orbiting observatory. Grunsfeld, a spacewalk veteran who previously worked on the telescope, will participate in two of the remaining four sessions of extravehicular activity later in the mission.
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https://www.nasa.gov/image-detail/week-of-work-hubble-telescope/
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