• This multiple exposure photograph shows the progression of a partial solar eclipse over the Gateway Arch in St. Louis on Aug. 21, 2017. (AP Photo/Jeff Roberson, File)
  • FILE - Lucy Maphiri, left, and Margaret Makuya watch the total solar eclipse over Shingwedzi camp in the Kruger National Park, South Africa, Wednesday, Dec. 4, 2002. (AP Photo/Jon Hrusa, File)
  • Using a welder's mask as protection, a man views a total eclipse in Piedra del Aguila, Argentina, Monday, Dec. 14, 2020. The total solar eclipse was visible from the northern Patagonia region of Argentina and from Araucania in Chile, and as a partial eclipse from the lower two-thirds of South America. (AP Photo/Natacha Pisarenko, File)
  • Magdalena Nahuelpan, a Mapuche Indigenous girl, looks at a total solar eclipse using special glasses in Carahue, La Araucania, Chile, Monday, Dec. 14, 2020. (AP Photo/Esteban Felix, File)
  • A total solar eclipse is observed above the mountainous Siberian Altai region, about 3,000 kilometers (1,850 miles) east of Moscow, on Friday, Aug. 1, 2008. (AP Photo/Oleg Romanov, File)