“The pressure in O2 Tank 1 is all the way down to 297. You’d better think about getting in the LEM and using the LEM systems. I’m going to have to power way down. I don’t know if I’m going to be able to save the O2 for the [remaining] fuel cell.” Liebergot, like Aaron, now knew that the command module was dying. If that was true, the only way the crew could get back was by getting into the LEM and surviving on its oxygen, water, and power.
