So ends humanity's first mission to the Moon. Michael Collins travelled a distance of 952,700 nautical miles in the Command Module Columbia during the mission that lasted 195 hours, 18 minutes and 35 seconds. Armstrong and Aldrin conducted a single 2.5 hour EVA on the Moon's surface and brought back 47 pounds of lunar regolith. The soil and rocks are still being studied 50 years later. #apollo50th