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Aurora alert! Gigantic 500,000-mile 'hole' in the sun's atmosphere could spark impressive northern lights tonight and tomorrow (photo)
The gigantic coronal hole is blasting high-speed solar wind toward Earth, potentially igniting vibrant auroras and minor ...
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See Earth's atmosphere glow gold in gorgeous photo taken from the ISS
The atmospheric glow, or airglow, captured in the new photo occurs when sunlight interacts with atoms and molecules within Earth's atmosphere. The new photo, which NASA shared on Jan. 21 ...