A huge shadow cast by the Moon as it passed in front of the Sun swept across the nation, from Oregon in the west to South Carolina in the east.
Millions of people moved to get into the path of darkness, putting on their protective glasses to gaze at the sky in wonder.
It was the first total solar eclipse visible from America's lower 48 states in 38 years, and the first since 1918 to track from coast to coast.
(Pics : The Big Picture, The Boston Globe)
The sun's corona is visible as the moon passes in front of the sun during a total solar eclipse at Big Summit Prairie
People gathered on the breakwater around the Old Scituate Lighhouse to photograph and look at the solar eclipse. (JohnTlumacki/Globe Staff)
A partial solar eclipse is seen near the Statue of Liberty on Liberty Island in New York. (Seth Wenig/Associated Press)
People use protective glasses to watch the solar eclipse along the waterfront near the Children's Museum in Boston. (Keith Bedford/Globe Staff)
The sun as seen at 30 percent of the solar eclipse in Managua. (Inti Ocon/AFP/Getty Images)
Becca Phillips of Needham put viewing glasses on her dog "Elvis." (Pat Greenhouse/Globe Staff)
The International Space Station (bottom right), 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 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. (NASA)