Shining Some Light on Sunspots

Right now, if you look at the sky at sunrise or sunset when the sun's light is dim, you might be able to see Sunspot AR1476, which is now wending its way across the face of Sol, with your naked eye. The sunspot measures 160,000 km across, or about a dozen times Earth's diameter. Eyeballing the sun might hurt your eyes, of course, so it's better to avoid looking directly at it.

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