Video: Unraveling the mysteries of clouds

Clouds are one of the biggest mysteries in the climate system. They play a key role in regulating the temperature of our atmosphere. But we don't know how their behavior will change over time as Earth's atmosphere gets warmer. ...

Why it's hard to predict the weather

Will it rain tomorrow or will it be sunny? Better data and more computing power have made weather forecasts more accurate.

Scientists' model increases accuracy of tide forecasts

The tides couldn't be controlled—only predicted. And for one day, June 6, in the spring of 1944, the tide prediction for the beaches of Normandy just may have been the most important in history.

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