Science

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Dropsondes are lightweight cylinders loaded with sensors that are ejected from airplanes into powerful hurricanes. As they fall, they gather data about the air pressure, temperature, humidity, windspeed and wind direction. Science correspondent Miles O'Brien reports on…

Mei Xiang made distressed sounds at 9:17 a.m. on Sunday, alerting zookeepers that something was wrong with her baby. Video by Smithsonian's National Zoo. The Smithsonian National Zoo hasn't yet confirmed what caused the death of the…

Sep 20

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Arctic Sea Ice Melts to Record-Breaking Low

// Arctic sea ice melted to 1.32 million square miles this September -- an unprecedented low and a sharp drop from the 2.59 million square mile average for this time of year. It also marks the greatest Arctic ice melt…

Sep 20

The drug that never lets go

Dickie Sanders was not naturally prone to depression. The 21-year-old BMX rider was known for being sweet spirited and warm -- a hugger not a hand-shaker. The kind of guy who called on holidays. Who helped his father on the…