Even with the best preparation imaginable, sometimes you have to get lucky, too.
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On July 16, 1969, the Saturn V rocket responsible for propelling Apollo 11 to the Moon successfully launched from Cape Kennedy. Astronaut Edwin E."Buzz" Aldrin Jr., Lunar Module Pilot, stands near a scientific experiment on the lunar surface. Humanity's first landing on the Moon occurred July 20, 1969, as the Lunar Module code-named"Eagle" touched down gently on the Sea of Tranquility on the east side of the Moon. The Lunar Module, completely intact before the ascent stage is launched, can be seen in full beside the planted American flag.
This artist's concept shows the Command Module undergoing re-entry in 5000 °F heat. The Apollo Command/Service Module was used for the Apollo program which landed astronauts on the Moon between 1969 and 1972. An ablative heat shield on the outside of the Command Module protected the capsule from the heat of re-entry , which is sufficient to melt most metals. During re-entry, the heat shield charred and melted away, absorbing and carrying away the intense heat in the process.
The plan to avoid it was simple: the Service Module, post-separation, would perform a series of thrust maneuvers to take it safely away from the re-entry path of the Command Module. By shifting the Service Module to a significantly different trajectory, it wouldn't even re-enter at the same time as the Command Module, but would skip off the atmosphere this time. The re-entry of the Service Module should have only come much later, after performing another orbit around Earth.
The crew of Apollo 11 — Neil Armstrong, Michael Collins, and Buzz Aldrin — in the Mobile Quarantine Facility after returning from the surface of the Moon. The U.S.S. Hornet successfully recovered the astronauts from the Command Module after splashdown, where the crew was greeted by President Nixon, among others.
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