Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world A Blood Moon rises behind The Hohenzollern Castle, the ancestral seat of the Prussian Royal House and of the Hohenzollern Princes, situated at the periphery of the Swabian Alb on July 27, 2018 in Hechingen, Germany. The period of totality during this eclipse, when Earth's shadow is directly across the moon and it is at its reddest, will last 1 hour, 42 minutes and 57 seconds, making it the longest viewable lunar eclipse this century. Photo by: Matthias Hangst Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world The lunar eclipse is seen above the skyscrapers on July 27, 2018 in Hong Kong, Hong Kong. Stargazers viewed Friday's total lunar eclipse, which was the longest blood moon visible this century, until 2123. Photo by: Anthony Kwan Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world People gather at the Alster Lake to watch the 'blood moon' eclipse over the northern German city of Hamburg on July 27, 2018. During this eclipse, when Earth's shadow is directly across the moon and at its reddest will make it the longest viewable lunar eclipse this century.Photo by: Morris MacMatzen Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world The lunar eclipse is seen above the skyscrapers on July 27, 2018 in Hong Kong, Hong Kong. Stargazers viewed Friday's total lunar eclipse, which was the longest blood moon visible this century, until 2123. Photo by: Anthony Kwan Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world A view full moon during a 'blood moon' eclipse on July 28, 2018 in Yogyakarta, Indonesia. Stargazers viewed Friday's total lunar eclipse, which was the longest blood moon visible this century, until 2123. Photo by: Ulet Ifansasti Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world The moon is seen turning red over the Sydney skyline during a total lunar eclipse on July 28, 2018 in Sydney, Australia. The lunar eclipse was the longest of the 21st century lasting 1 hour and 43 minutes. Photo by: Cameron Spencer Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world A view full moon during a 'blood moon' eclipse on July 28, 2018 in Yogyakarta, Indonesia. Stargazers viewed Friday's total lunar eclipse, which was the longest blood moon visible this century, until 2123. Photo by: Ulet Ifansasti Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world (EDITOR'S NOTE: This image has been created using multiple exposure in camera) The Lunar eclipse can be seen on July 28, 2018 in Seoul, South Korea. Stargazers viewed Friday's total lunar eclipse, which was the longest blood moon visible this century, until 2123. Photo by: Chung Sung-Jun Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world A Blood Moon rises behind The Hohenzollern Castle, the ancestral seat of the Prussian Royal House and of the Hohenzollern Princes, situated at the periphery of the Swabian Alb on July 27, 2018 in Hechingen, Germany. The period of totality during this eclipse, when Earth's shadow is directly across the moon and it is at its reddest, will last 1 hour, 42 minutes and 57 seconds, making it the longest viewable lunar eclipse this century. Photo by: Matthias Hangst Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world A total lunar eclipse is seen behind a dome of Istanbul's famous Suleymaniye Mosque on July 27, 2018 in Istanbul, Turkey. The total lunar eclipse was the longest lunar eclipse of the 21st century, lasting 1 hour and 43 minutes. Photo by: Chris McGrath Photos: Lunar eclipse offers thrilling views of 'blood moon' across the world A total lunar eclipse is seen behind a dome of Istanbul's famous Suleymaniye Mosque on July 27, 2018 in Istanbul, Turkey. The total lunar eclipse was the longest lunar eclipse of the 21st century, lasting 1 hour and 43 minutes. Photo by: Chris McGrath