Keeping time on the moon...
You’re out for a drive, 250,000 miles from Earth. Your flight leaves in 64 minutes. How did the crew of Apollo 17 make it?
Posted: 21 Nov 2012
"Keeping track of time was always a necessity, as well as a way of keeping track of what was going on back home," Cernan tells us. This took on even more meaning when he landed in the silvery valley of Taurus-Littrow. There he was, looking up at a thick, black sky yet blinking in bright sunshine, all the while standing on mankind's own celestial clock, used to measure time for centuries before any watch came along. "In space, time does take on a whole new perspective," he says. "You can make it what you want it to be. However, when you look back at the Earth, you revert to time's relationship with sunrises and sunsets as the world turns."