NASA'S Mission to Improve Predictions of Violent Space Weather
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Credit: NASA/GSFC
About 93 million miles from us lies an immense nuclear furnace spanning 100 Earths. In just one second, it produces enough power to supply the entire United States for nine million years. It is the closest star, our sun. Although its light powers almost all life on Earth, the sun has a dark side. Storms from the sun can knock our finely tuned technological civilization off balance, disrupting satellites, power grids, and radio communication, including the Global Positioning System. Radiation from solar storms can cause cancer in astronauts on unshielded areas, like the moon's surface.
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