On Mar. 28, 1979, the most significant nuclear power accident in U.S. history began after a pressure valve failed to close at the Three Mile Island nuclear plant near Harrisburg, Pa. What followed ...

The site took 14 years and $1 billion to clean up and, to date, Three Mile Island remains the worst nuclear accident in U.S. history. A sign announces the closing of the observation center for the ...

a malfunctioning valve set off what would become “the most serious accident in U.S. commercial nuclear power plant operating history.” The incident at the Three Mile Island nuclear power ...

The Unit 1 reactor on Three Mile Island, which closed in 2019, is adjacent to the Unit 2 reactor that experienced a major nuclear power accident in 1979 A newly-announced Microsoft deal would ...

On March 28, 1979, 46 years ago tomorrow, malfunctions and human errors set off what the Nuclear Regulatory Commission called “the most serious accident ... at the Three Mile Island nuclear ...

MARCH 28TH, 1979 46 YEARS AGO TODAY, THE WORST NUCLEAR ACCIDENT IN AMERICAN HISTORY HAPPENED RIGHT HERE IN THE SUSQUEHANNA VALLEY. THE UNIT TWO REACTOR THREE MILE ISLAND NUCLEAR PLANT IN DAUPHIN ...

DAUPHIN COUNTY, Pa. — On March 28 ,1979, the Unit 2 reactor on Three Mile Island went through a partial meltdown, marking the worst nuclear power accident in U.S. history. With Constellation ...

An accident at the Three Mile Island nuclear power plant March 28, 1979 near Harrisburg, Pa. damaged the reactor core and sent radioactive material into the atmosphere, the government said in an ...

Getty Images Ukraine is home to the Chernobyl Nuclear Power Plant where a catastrophic nuclear accident occurred. Getty Images Three Mile Island, home to a massive nuclear plant that had a ...