VOA慢速英语视频:Satellite Will Watch for Sun Storms, Warn Earth
2015-04-07来源:和谐英语
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Strong storms on the sun can cause problems for satellites, radio transmissions and even airplane travel. A satellite is now traveling 1.5 million kilometers to enter the sun’s orbit, just in time to observe extreme weather on the sun at its most violent time in the sun’s 11-year cycle.