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All NASA eyes on Tropical Storm Dolphin

Three NASA satellite instruments took aim at Tropical Storm Dolphin. Dolphin responded by posing for pictures as it headed west towards Guam gathering strength and speed as it moves. The MODIS instrument ...

dateMay 12, 2015 in Earth Sciences
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Ana tightens up and becomes tropical

Up until Saturday morning, Ana had been referred to as a subtropical storm, rather than a tropical storm. What's the difference? The difference lies is how the two different storms are "born." Subtropical ...

dateMay 11, 2015 in Earth Sciences
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Image: Global cloud fraction map of Earth

Decades of satellite observations and astronaut photographs show that clouds dominate space-based views of Earth. One study based on nearly a decade of satellite data estimated that about 67 percent of ...

dateMay 11, 2015 in Earth Sciences
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