On Aug. 10, 1969, Apollo 11 astronauts Neil A. Armstrong, Michael Collins, and Edwin E. “Buzz” Aldrin completed their 21-day quarantine after returning from the Moon. The historic nature of their mission resulted in a very busy postflight schedule for Armstrong, Collins, and Aldrin, starting with celebrations in New York, Chicago, Los Angeles, and Houston. Scientists continued to examine the lunar samples the Apollo 11 astronauts returned from the Sea of Tranquility. NASA set its sights on additional lunar landing missions...