Today marks the 30th anniversary of the #Chernobyl nuclear plant meltdown -- a disaster that spewed out more radioactivity than 100 Hiroshima bombs. In 2011, science correspondent Miles O'Brien visited the Chernobyl site and looked back at the aftermath of the infamous incident. | PBS NewsHour

In the aftermath of the Chernobyl disaster, workers discovered a terrifying sight beneath Reactor No. 4—a black, lava-like mass later nicknamed the “Elephant’s Foot.” ☢️ Formed from melted nuclear fuel, sand, and concrete, it emitted enough radiation in 1986 to kill a person in minutes. This haunting relic remains one of the most radioactive objects ever found. | The Galactic Void

New footage reveals what Chernobyl looks like 30 years after the worst nuclear accident ever. | Insider Tech