描述: Eight days, three hours, 18 minutes, 35 seconds. That's the total duration of the most important and celebrated space mission ever flown - Apollo 11 - when we first stepped foot on the moon...
简介： Eight days, three hours, 18 minutes, 35 seconds. That's the total duration of the most important and celebrated space mission ever flown - Apollo 11 - when we first stepped foot on the moon...
