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NORTHERN LIGHTS: A pair of solar wind disturbances buffeted Earth's magnetosphere during the weekend and triggered a geomagnetic storm. On Sunday, Sept. 30th, and Monday, Oct. 1st, high-latitude sky watchers spotted some of the most beautiful Northern Lights of the young aurora season. See them for yourself by visiting our growing photo gallery. Forecasters say there is also a chance for more auroras during the nights ahead. The best time to look is around local midnight.

SOLAR ACTIVITY: A solar proton storm is underway following an M9-class eruption on the Sun today. The blast also hurled a bright lopsided coronal mass ejection into space and, perhaps, a solar wind disturbance toward Earth. Visit spaceweather.com for updates and details.