Astronomy Picture of the Day( April 30, 2018): Total Solar Eclipse Corona in HDF

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Total Solar Eclipse Corona in HDF
How great was the Great American Eclipse? The featured HDR image shows it to be perhaps greater than we knew. On August 21 of last year, the Moon blocked the Sun for a few minutes along a narrow path across the USA. Although one of the most photographed events in human history, this image -- only recently completed after an extraordinary amount of digital processing

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