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Astro Bob blog: Double Eclipse of the Sun / Watch for Aurora Tonight Sept. 14

NASA's Solar Dynamics Observatory (SDO) photographed a unique event never viewed from Earth -- two eclipses of the sun on the same day! Keep an eye out for aurora tonight.

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NASA's Solar Dynamics Observatory (SDO) photographed a unique event never viewed from Earth - two eclipses of the sun on the same day! Keep an eye out for aurora tonight. 

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