At 18, Katie Stubblefield lost her face. At 21, she became the youngest person in the U.S. to undergo the still experimental surgery. Follow her incredible story. Sixteen hours into a transplant ...

As sunlight filters through your window each morning, a quiet, powerful rhythm pulses inside your body. This inner clock ...

In 1974 a young Kodak engineer named Steven Sasson was assigned a seemingly low-stakes task: to see if there was any practical use for a recent invention capable of turning light into data. He built a ...

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