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Heart rates of the Apollo 14 crew during multiple docking attempts
Heart rates of the Apollo 14 crew during multiple docking attempts It took 6 attempts to achieve a successful docking of the Command and Service Module (CSM) and the Lunar Module (LM) during Apollo 14. It was later determined that a small piece of debris likely prevented the mechanical system from automatically triggering. Note the heart rate of Command Module Pilot Stu Roosa, who was responsible for the docking operation. NASA