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Why Going to Outer Space Is Actually Easier Than Summiting Mount Everest
There's only one guy on this whole planet who's done both. He tells us what it's like to experience two of the most extreme feats.
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Elon Musk and Mark Zuckerberg Spar Over How Dangerous AI Really Is
Some experts take issue with Elon Musk’s frightening warning about AI taking over.
10 Most Dangerous Scientific Experiments in History
The times in history when science was deadly and dangerous.