NASA astronaut Scott Kelly — whose DNA changed after a year in space — talks about his underachieving childhood, his identical twin and fellow astronaut brother, and how leaving Earth changes people for the better

Retired NASA astronaut Scott Kelly had four missions in space, including a 340-day trip aboard the International Space Station in 2015-2016. On our “Success” podcast,

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How did Tesla make some of its cars travel further during Hurricane Irma? The electric-car giant gave customers a lifeline by remotely boosting their vehicles’ battery capacity. But this act of kindness also highlighted that it had been selling identical cars at different prices

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