PHOTOS: The best of the 2017 solar eclipse Photo by: David Shank 2017 PHOTOS: The best of the 2017 solar eclipse JACKSON, WY - AUGUST 21: The sun is partially eclipsed in the first phase of a total eclipse in Grand Teton National Park on August 21, 2017 outside Jackson, Wyoming. Thousands of people have flocked to the Jackson and Teton National Park area for the 2017 solar eclipse which will be one of the areas that will experience a 100% eclipse on Monday August 21, 2017. (Photo by George Frey/Getty Images)Photo by: George Frey PHOTOS: The best of the 2017 solar eclipse Photo by: Larry Norman PHOTOS: The best of the 2017 solar eclipse Photo by: David Shank 2017 PHOTOS: The best of the 2017 solar eclipse BANNER, WY - AUGUST 21: (EDITORS NOTE: Multiple exposures were combined to produce this image.) In this NASA handout, acomposite image, made from seven 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, Monday, Aug. 21, 2017 near Banner, Wyoming. Onboard as part of Expedition 52 are: NASA astronauts Peggy Whitson, Jack Fischer, and Randy Bresnik; Russian cosmonauts Fyodor Yurchikhin and Sergey Ryazanskiy; and ESA (European Space Agency) astronaut Paolo Nespoli. A total solar eclipse swept across a narrow portion of the contiguous United States from Lincoln Beach, Oregon to Charleston, South Carolina. A partial solar eclipse was visible across the entire North American continent along with parts of South America, Africa, and Europe. (Photo by Joel Kowsky/NASA via Getty Images)Photo by: NASA PHOTOS: The best of the 2017 solar eclipse Photo by: David Shank 2017 PHOTOS: The best of the 2017 solar eclipse Photo by: Tess Brass PHOTOS: The best of the 2017 solar eclipse Photo by: David Shank 2017 PHOTOS: The best of the 2017 solar eclipse JACKSON, WY - AUGUST 21: The sun is is in full eclipse over Grand Teton National Park on August 21, 2017 outside Jackson, Wyoming. Thousands of people have flocked to the Jackson and Teton National Park area for the 2017 solar eclipse which will be one of the areas that will experience a 100% eclipse on Monday August 21, 2017. (Photo by George Frey/Getty Images)Photo by: George Frey PHOTOS: The best of the 2017 solar eclipse Photo by: Brittany Harp PHOTOS: The best of the 2017 solar eclipse Photo by: Tyler Herndon PHOTOS: The best of the 2017 solar eclipse Photo by: Aaron Rachel Taylor PHOTOS: The best of the 2017 solar eclipse Photo by: Sherry Dumlhar PHOTOS: The best of the 2017 solar eclipse Photo by: Justin Sullivan PHOTOS: The best of the 2017 solar eclipse Photo by: Larry Norman PHOTOS: The best of the 2017 solar eclipse ROSS LAKE, WASHINGTON - AUGUST 21: In this NASA handout, The International Space Station, with a crew of six onboard, is seen in silhouette as it transits the Sun at roughly five miles per second during a partial solar eclipse, Monday, Aug. 21, 2017 from Ross Lake, Northern Cascades National Park, Washington. Onboard as part of Expedition 52 are: NASA astronauts Peggy Whitson, Jack Fischer, and Randy Bresnik; Russian cosmonauts Fyodor Yurchikhin and Sergey Ryazanskiy; and ESA (European Space Agency) astronaut Paolo Nespoli. A total solar eclipse swept across a narrow portion of the contiguous United States from Lincoln Beach, Oregon to Charleston, South Carolina. A partial solar eclipse was visible across the entire North American continent along with parts of South America, Africa, and Europe. (Photo by Bill Ingalls/NASA via Getty Images)Photo by: Bill Ingalls/NASA PHOTOS: The best of the 2017 solar eclipse Photo by: Stephanie Foley PHOTOS: The best of the 2017 solar eclipse JACKSON, WY - AUGUST 21: The sun is is in full eclipse over Grand Teton National Park on August 21, 2017 outside Jackson, Wyoming. Thousands of people have flocked to the Jackson and Teton National Park area for the 2017 solar eclipse which will be one of the areas that will experience a 100% eclipse on Monday August 21, 2017. (Photo by George Frey/Getty Images)Photo by: George Frey PHOTOS: The best of the 2017 solar eclipse Photo by: Tyler Uhis PHOTOS: The best of the 2017 solar eclipse Photo by: Clayton Wetzel PHOTOS: The best of the 2017 solar eclipse Photo by: Juanita Jacobs PHOTOS: The best of the 2017 solar eclipse CASPER, WY - AUGUST 21: A partial eclipse is seen from South Mike Sedar Park on August 21, 2017 in Casper, Wyoming. Millions of people have flocked to areas of the U.S. that are in the "path of totality" in order to experience a total solar eclipse. During the event, the moon will pass in between the sun and the Earth, appearing to block the sun. (Photo by Justin Sullivan/Getty Images)Photo by: Justin Sullivan PHOTOS: The best of the 2017 solar eclipse Photo by: Stephanie Mae Finney PHOTOS: The best of the 2017 solar eclipse Photo by: Lindsay Woods PHOTOS: The best of the 2017 solar eclipse Photo by: Dennis Lyall