A pair of researchers at Harvard is preparing for the day when humans encounter alien life. “Not in the next 5 or 10 years, but maybe in the next 20 or 30,” says Henry Lin, co-creator of a statistical ...

Dollar Tree, Inc. owns and operates discount variety stores offering merchandise at fixed prices. It operates through the Dollar Tree business segment. The Dollar Tree segment includes operations ...

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Fitness wearables can help you move more, sleep better, and stay healthy. Here's how to pick the right one for you, along with the best fitness trackers we've tested. I’m PCMag’s senior writer ...

COPENHAGEN, Denmark — Cataract surgery is a low-risk, low-cost intervention that can improve the quality of life in people with dementia and may prevent progression to some extent.