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Ground in space

  1. May 22, 2007 #1
    Here is a question I ponder sometimes: Does anyone know how they ground electronics in space? I was thinking that they might use a virtual ground. Does anyone know how it is done, for sure?
  2. jcsd
  3. May 22, 2007 #2


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    I don't know anything 'for sure', but wouldn't a normal common ground be used the same as in any battery-operated circuit?
  4. May 22, 2007 #3
    The chassis of the space vehicle is grounded, just like a chassis of a car.

    On earth we usually ground things to earth as earth is a giant conductor like a chassis of a car.

    And since your feet are touching earth they are grounded, so when you operate a device grounded to earth you won't get a shock or introduce a big potential difference that can destroy the device just by touching it.
  5. May 23, 2007 #4
    I see. Thank you for the answers.
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