The Three Mile Island accident was a partial nuclear meltdown of the Unit 2 reactor (TMI-2) of the Three Mile Island Nuclear Generating Station, located on the Susquehanna River in …

Dec 2, 2025 · The accident at Three Mile Island, though minuscule in its health consequences, had widespread and profound effects on the American nuclear power industry. It resulted in …

Oct 2, 2025 · The Three Mile Island Unit 2 reactor, near Middletown, Pa., partially melted down on March 28, 1979. This was the most serious accident in U.S. commercial nuclear power plant …

Dec 18, 2009 · In March 1979, a series of mechanical and human errors at the plant caused the worst commercial nuclear accident in U.S. history, resulting in a partial meltdown that released …

Mar 27, 2025 · While most people were still asleep just before 4 a.m. on Wednesday, March 28, 1979, a malfunctioning valve set off what would become “ the most serious accident in U.S. …

Explore the Three Mile Island Nuclear Accident overview and learn about its impact on nuclear safety and technology advancements.

America’s worst accident at a civilian nuclear power plant occurred on March 28, 1979. Unbeknown to anyone, half the fuel melted in one of two nuclear reactors on Three Mile Island …

In late March 1979, the Three Mile Island nuclear generating station in Pennsylvania witnessed the worst nuclear incident in American history. In Unit 2 of the plant, a valve surrounding a …

Explore the detailed timeline of events surrounding the Three Mile Island accident, the most serious accident in U.S. commercial nuclear power plant history, which occurred on March 28, …

May 4, 2022 · Facts to know about the accident at Three Mile Island in 1979. The most serious accident in U.S. commercial nuclear power plant operating history occurred at the Three Mile …