PRYPIAT, Ukraine – A ceremony at the Chornobyl nuclear power plant on November 29 marked the successful conclusion of the erection of a new confinement structure over the stricken reactor No. 4. The process of sliding the arch structure into place via hydraulic jacks took two weeks. The operation is a key milestone before the…...

The new confinement structure for the Chornobyl plant, seen on November 14, as the arch sliding began. It took two weeks for the structure to be moved into place.