Hubble Spacewalk #2 a Marathon

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Spaceflight Now | STS-125 Shuttle Report | Spacewalk No. 2 ends.

Originally planned for six-and-a-half hours, the EVA began at 8:49 a.m. But problems getting one of three dual-gyro rate sensor units installed threw the astronauts well behind schedule. In the end, they had to forego one state-of-the-art gyro pack and instead install a refurbished RSU taken from Hubble during a 1999 service call.

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One Response to “Hubble Spacewalk #2 a Marathon”

  1. alpkirk Says:

    I’ve been glued to the coverage of the spacewalks… but also appreciate the commentary and additional info from you, Miles!

    A quick question that I have been wondering about… Are they also going to replenish the thruster propellant while they are up there? I’m assuming that Hubble has some method of moving about within its orbit to point at different areas of the sky, but no mention of propellants or replenishment has been made, at least that I have heard.

    TIA for the insight!

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