Nature

Tommy Caldwell and Alex Honnold
Video

Mountain climber Tommy Caldwell takes us inside Alex Honnold’s free solo of El Capitan.

Length: 
2:57
shoe
Audio

So you’re a serious runner? Consider the Self-Transcendence Race, running around the same half-mile loop for 3,100 miles.

Length: 
10:36
Tommy Caldwell, at his base camp in the middle of the Dawn Wall.
Articles

Tommy Caldwell talks about his lifelong obsession with climbing.

Length: 
16:06
Alex Honnold
Dangerous Ideas

He may have already conquered El Capitan, but Alex Honnold can dream up far more daring and dangerous adventures.

Length: 
2:05
Chimpanzee
Airdates: 
July 14, 2018

Do chimpanzees have spiritual experiences? A remarkable discovery in West Africa suggests they might.More

Stars
Airdates: 
June 30, 2018

Do scientists see the world in a different way? Not really. Just be curious.More

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