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

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President Donald Trump, first lady Melania Trump and their son Barron watch the solar eclipse, Monday, Aug. 21, 2017, at the White House in Washington. (AP Andrew Harnik)

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A crowd wears protective glasses as they watch the beginning of the solar eclipse from Salem, Ore., Monday, Aug. 21, 2017.

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Kayley Terrez is lifted up to see the solar eclipse through a telescope as a large crowd gathers at the Griffith Observatory to watch the solar eclipse in Los Angeles Monday, Aug. 21, 2017. (AP Photo/Richard Vogel)

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A crowd gathers in front of the Hollywood sign at the Griffith Observatory to watch the solar eclipse in Los Angeles on Monday, Aug. 21, 2017. (AP Photo/Richard Vogel)