Peake didn't set any speed records. He finished in 3 hours and 35 minutes, which was well behind winner Eliud Kipchoge's 2 hours and 3 minutes. The time also trailed behind the 3 hours, 18 minutes that Peake set as a personal best while on terra firma. Mind you, the astronaut probably isn't about to complain. Whatever setbacks he encountered running on the ISS are peanuts compared to a historic achievement like this, especially when it proves that you can endure grueling physical tests in space.

Update: Peake is the first man to run a marathon in space, but not the first person as we previously reported. That distinction goes to Sunita Williams, who did it in 2007. We apologize for the error.