The explosion of the oxygen tank led to the crisis. In order to solve the problem of oxygen, the lunar module was switched; in order to solve the problem of carbon dioxide poisoning, a carbon dioxide filter was made. In order to solve the power problem, all the electrical appliances were turned off, no lighting, no heating, and the steps of the operation were simulated in a NASA simulator to reach the electricity consumption that can be returned to Earth. The orbital angle is not good, and electricity cannot be used in transition, so we use manual operation, select the earth as the reference point, and manually adjust the angle after lighting. After solving so many problems, it is still necessary to rely on God's will to ensure that the damaged heat shield can continue to be used when it returns to the atmosphere, and the parachute can be automatically opened.
So, coming back is a blessing.
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