Mike Newchurch, left, professor of atmospheric chemistry at the University of Alabama in Huntsville, and graduate student Paula Tucker prepare a weather balloon before releasing it to perform research during the solar eclipse, on the Orchard Dale historical farm near Hopkinsville, KY.

The location, which is in the path of totality, is also at the point of greatest intensity.

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The diamond ring effect becomes visible as the moon approaches maximum coverage as seen from the campus of Southern Illinois University before the start of a total solar eclipse in Carbondale, IL.

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The solar eclipse as shown from Long Beach Island, NJ.

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The eclipse as shown from Long Beach Island, NJ.

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The eclipse as seen in Fort Lauderdale, FL.

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The eclipse as seen in Kansas City, MO.

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The sun reappears behind the moon during a full eclipse in Sisters Oregon.

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A partial solar eclipse of the sun is seen through eclipse glasses from a beach in Chilmark, MA. 

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The moon partially covers the sun after a total eclipse, near Redmond, OR.

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This multiple-exposure photo shows the path of the sun during a total eclipse by the moon, near Redmond, OR.

Each exposure was taken approximately 20 minutes apart.

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A total solar eclipse is seen above the Bald Knob Cross of Peace, in Alto Pass, IL.

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A partial solar eclipse appears over the Statue of Liberty on Liberty Island in New York.

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A statue of William Penn atop City Hall is seen near a partial eclipse in Philadelphia.

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This composite 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, near Banner, WY.

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. 

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The sun was covered 70% by the moon at peak hour when seen from the city of Toronto.

Many people gathered to see the astronomic event.

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A direct look at the sun in the sky in East Texas near Commerce.

Photo by LARRY W. SMITH/EPA/REX/Shutterstock

The cross on top of the First Baptist Church is silhouetted in front of the sun, in Simpsonville, S.C.

South Carolina geared up for a total solar eclipse, which crossed the state diagonally during a phenomenon that was seen across the country.

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The eclipse wasn’t confined to just the U.S. either. Here, a partial eclipse is viewed briefly through hazy cloud over the silhouette of the Olympic Rings, Portland, Dorset, UK

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People are seen taking photos and looking at the solar eclipse in Mexico City, Mexico.

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View of the solar eclipse in Caracas, Venezuela.

Photo by Miguel Gutierrez/EPA/REX/Shutterstock