7:54 PM Italian time (mission time 5d:04h:22′:00s): The LM lifts off from the lunar surface. Liftoff, powered by a single engine, is initially tragically risky, as the button to ignite the engine is missing (perhaps having been knocked and broken earlier). Buzz Aldrin has the idea of using his Fisher ballpoint pen to make contact. Fortunately, the engine ignites.
