
"On April 26, 1986, a safety test gone wrong at the Chernobyl Nuclear Power Plant in Ukraine led to a massive explosion, releasing radioactive materials into the environment."
"devastating" → catastrophic
"The disaster released 50 tons of radioactive iodine-131, 20 tons of radioactive cesium-137, and 10 tons of radioactive strontium-90 into the atmosphere, contaminating a large area around the plant."
The second paragraph: "The Chernobyl series is a historical drama miniseries that tells the story of the 1986 Chernobyl nuclear disaster."