NASA Observatory Captures Largest Sunspot In More Than 20 Years

October 24, 2014 11:04 AM

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NASA Observatory Captures Largest Sunspot In More Than 20 Years

NASA’s Solar Dynamics Observatory, or SDO, has captured an image of a gigantic sunspot, which rotated from the left side of the sun to the right on Oct. 18. The sunspot soon grew to be the largest active region observed in the current solar cycle -- a periodic change in the sun's activity and appearance -- which began in 2008.

The sunspot region, dubbed AR 12192, is about 80,000 miles across, which is wide enough for 10 Earths to be laid across its diameter, according to NASA. The sunspot, which is visible to the naked eye from Earth, has produced several significant solar flares over the last few days, including an X-cla...

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