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Comet NEOWISE is visible just above the upper left corner of Wilson Hall. Fireflies are visible in the foreground. This photo was taken on July 22 from inside the Tevatron ring. nature, landscape, night, building, Wilson Hall, wildlife, insect, firefly, comet Photo: Marty Murphy

Comet NEOWISE is visible just above the upper left corner of Wilson Hall. Fireflies are visible in the foreground. This photo was taken on July 22.

From atop Wilson Hall, you can see, from left, the Chicago skyline, Terrace Tower in Oak Brook and buildings in Naperville shimmering in late afternoon sunlight.