National

Paul Chelimo's tale about becoming a U.S. Olympian is unusual, and the story behind his silver medal performance in the men's 5,000 meters is stranger still.

We'll work backwards, starting with his race in Rio on Saturday night.

Chelimo ran a personal best in the 5,000 meters (3.1 miles) of 13:03:90, finishing second with a strong kick and trailing only the remarkable Mo Farah of Britain, who won the 5,000 and the 10,000, the same difficult double he pulled off in 2012.

One of the most surprising stories of the Olympics, which end on Sunday, was the unseeded Monica Puig's improbable march to the gold medal in women's singles tennis. Puig's win captured Puerto Rico's first-ever gold medal in the Olympics, and set off massive celebrations across the island. It was a big-ass deal.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit NPR.

Copyright 2016 NPR. To see more, visit NPR.

What It's Really Like To 'Walk' In Space

Aug 21, 2016
Copyright 2016 NPR. To see more, visit NPR.

Copyright 2016 NPR. To see more, visit NPR.

Copyright 2016 NPR. To see more, visit NPR.

Copyright 2016 NPR. To see more, visit NPR.

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