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If such a thing happened, it would most likely have been during the approach and rendezvous of the LM ascent stage with the CM, as Conrad and Bean were returning from the lunar surface. The most challenging part of the mission would be behind them and there would be a little window of time where they could maneuver around on the RCS thrusters without any ...


For US launchers, this answers your question. ESA has not developed RTGs, so there's less need to develop a certification process.

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