But war was a scenario its engineers never envisioned. A Ukrainian air defense unit illuminating a hole in the steel shield at the Chernobyl nuclear power plant last month. The fire started by the ...

CHERNOBYL, Ukraine — There is a massive scar on the only thing standing between a decades-old nuclear disaster and the potential for another. The tomb burying the remains of the catastrophic ...

For weeks, the Ukrainian authorities have been looking for ways to repair a large hole in the protective shell that covers the fourth reactor of the decommissioned Chernobyl nuclear plant. On February ...