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Click to see full image, with diameters of Earth and Jupiter for scale. Credit: NASA/SDO Space weather forecasters are keeping a close watch on a large collection of sunspots that could unleash blasts of energy or charged particles toward Earth in the coming days. Sunspot region 1476, the dark patch resembling the Hawaiian Islands in the photo at left, is located near the center of the sun s face as seen from Earth but has yet to act out in any major way.

MIAMI -- There's only one building in Florida that can withstand the biggest and baddest of all hurricanes -- the Category 5, with winds of at least 165 mph (266 kph) -- and it's a concrete bunker along an unglamorous stretch of road in South Florida called the National Hurricane Center (NHC). The NHC never closes. Here, weather forecasters work around the clock, 365 days a year, tracking threatening storms in both the Atlantic and Pacific Oceans