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Snowy owl facts (and where to find them!)

Find out where snowy owls live, what they eat, how to spot a snowy owl, and see pictures of what the baby owls look like.

Black mathematician Gladys West, who helped develop GPS, has died at age 95

Groundbreaking Black mathematician Gladys West, who helped develop the algorithms behind GPS, died Jan. 17 at age 95. NPR's Scott Simon talks to Marvin Jackson, who co-wrote West's memoir.