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So the solution is to strap a whole new bus to another bus... as opposed to just filling up the tank again?
So the solution is to strap a whole new bus to another bus... as opposed to just filling up the tank again?
Nearly all satellites do not have a way to refuel the tank in orbit. Adding a docking and refueling mechanism adds to the cost and complexity of satellites and adds another point of failure. Another factor is that a satellites mission might be extended beyond its initially expected service life.
The idea is more like a tug boat and a tanker than two buses.
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