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Amateur stargazers and scientists have gathered to catch a glimpse of the total eclipse of the Sun later as it moves along a narrow corridor across North America.
People are congregating in key viewing spots in Mexico, the US and Canada ahead of one of the most eagerly anticipated astronomical events in years.
Image source, Soren Larson/Reuters
Image caption,A rainbow forms over Niagara Falls as eclipse watchers begin to arrive at Niagara Falls State Park in New York
Image source, SARAH YENESEL/EPA
Image caption,People have camped out at Prospect Point, hours in advance
Image source, SARAH YENESEL/EPA
Image caption,Thousands are expected to view the eclipse from the falls area
Image source, Eduardo Munoz/Reuters
Image caption,The observation deck of Edge at Hudson Yards is also filling up. While New York City isn't in the path of totality, it will see up to 90% of the sun covered by the moon
Image source, Mert Alper Dervis/Anadolu/Getty Images
Image caption,Early visitors wrapped up warm at Niagara Falls, Ontario, Canada
Image source, Michael Conroy/AP
Image caption,Telescopes have been set up at the Indianapolis Motor Speedway in Indiana for a public viewing event
Image source, Joe Raedle/Getty Images
Image caption,US space agency Nasa handed out eclipse glasses to those waiting in Houlton, Maine
Image source, Fernando Llano/AP
Image caption,Amateur astronomers prepare in Mazatlan, Mexico
Image source, Henry Romero/Reuters
Image caption,Mazatlan is the first location where viewers will see the effect of the Moon fully blocking the Sun
Image source, Henry Romero/Reuters
Image caption,This eclipse is rare as it will cover several densely populated cities
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