• Question: if a spaceship stops in space could you get it going again by the use of fuel and if so how?

    Asked by bartosz to Dominic, James, Jenny, Kevin, Norah on 15 Mar 2017.
    • Photo: James Harpur

      James Harpur answered on 15 Mar 2017:

      A spaceship wouldn’t stop anyway as it’s being flung around by gravity. However, if a satellite was dependent on fuel, such as a thruster system, and it ran out of fuel needed to maneuver correctly, then yes filling it back up would allow it to move it in its targeted direction. There’s been a few missions that re-visit spacecraft to fix them, Hubble telescope springs to mind, but I don’t recall a mission yet where the fuel tanks have been refilled.