Total Solar Eclipse seen over the U.S. on August 21, 2017
August 21, 2017

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The moon covers the sun during a total eclipse Monday, Aug. 21, 2017, near Redmond, Ore. (AP Photo/Ted S. Warren)

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In this multiple exposure photograph, the phases of a partial solar eclipse are seen over the Gateway Arch on Monday, Aug. 21, 2017, in St. Louis. The Gateway Arch was just a few miles outside of the path of totality. (AP Photo/Jeff Roberson)

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This composite image, made from 4 frames, shows the International Space Station, with a crew of six onboard, as it transits the Sun at roughly five miles per second during a partial solar eclipse, Aug. 21, 2017 from , Northern Cascades National Park in Wa

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Projected images of the eclipse is seen through the leaves on the trees on the sidewalk at the White House in Washington, Monday, Aug. 21, 2017. (AP Photo/Alex Brandon)