New Safe Confinement seals the remains of the fourth reactor at the nuclear plant that was the site of the massive Chernobyl disaster in 1986.
The Japanese government mandates a limit of 40 years for nuclear reactors; the Tokai No. 2 has been running since 1978. Today marked the fourth time Japan Atomic Power Co. filed an application with the Nuclear Regulation Authority for an extension.
Scientists may have solved one major problem that comes up when building a fusion reactor—runaway electrons.
The Russian president is meeting his Iranian counterpart, Hassan Rouhani, next week.
Hermit Kingdom could begin to recover plutonium from a restarted nuclear reactor within weeks.