across space and a way to negotiate Apollo 17's command module, prior to being Earth's atmosphere upon return. It mated with its service module, contained adequate supplies of food and warmth as well as the equipment that its crew would need for a programme of science during their journey. The life-support infrastructure of the Apollo spacecraft was under the watchful eye of the flight controller who sat at the EECOM console. EECOM stood for electrical, environmental and communications, though changing roles within mission control had removed the communications responsibility without changing the name.
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