Imagine running a marathon -- in space!
That's what British astronaut Tim Peake did, successfully running the London marathon from the International Space Station.
Peake ran all 26.2 miles, strapped to a treadmill aboard the ISS, in sync with the real race down on earth. During his race, he watched a virtual-reality video that simulated real runners who used the app called "Run Social." Peake wrapped up his space marathon in about three hours and 35 minutes. He is now the second astronaut, first man, ever to run a marathon in space.
Instructional Links
Encyclopedia Article: World Book Student, Marathon
http://www.worldbookonline.com/student/article?id=ar753468
Video: YouTube, Wall Street Journal, Astronaut Runs London Marathon in Space