SEOUL, South Korea — South Korea said on Wednesday that it has failed to reach a compromise with the United States on its civil nuclear energy program, forcing the two allies to delay the deadline for a ... Read more
President Mahmoud Ahmadinejad of Iran has started a three-nation Africa trip that includes a visit to Niger, a leading producer of uranium. Mr. Ahmadinejad, left, is also visiting Benin and Ghana. ... Read more
Iran announced an expansion of its uranium production and claimed other atomic energy advances on Tuesday, striking a newly defiant tone over its nuclear dispute with the big powers in the aftermath of ... Read more
WASHINGTON — All 104 nuclear power reactors now in operation in the United States have a safety problem that cannot be fixed and they should be replaced with newer technology, the former chairman of the ... Read more
ALMATY, Kazakhstan — Negotiations over Iran’s disputed nuclear program broke off Saturday with scant signs of progress, much less an agreement on tighter controls demanded by six world powers in ... Read more
TOKYO — Tens of thousands of gallons of radioactive water leaked from a large underground storage pool at Japan’s crippled nuclear plant, and thousands more gallons could seep out before the faulty ... Read more
ALMATY, Kazakhstan — Negotiations over Iran’s disputed nuclear program broke off Saturday with scant signs of incremental progress, much less an agreement on tighter controls and tougher ... Read more
TOKYO — Workers at the stricken Fukushima nuclear power plant who were installing wire nets Friday to keep rats away from a vital cooling system instead tripped up that system, causing it to fail for the ... Read more
WASHINGTON — A treatment plant that the Energy Department is counting on to stabilize the radioactive waste at the nation’s largest environmental cleanup project, at the Hanford Nuclear Reservation ... Read more
The operator of the stricken Fukushima Daiichi nuclear power plant acknowledged Friday that it had been ill prepared for the tsunami that swept over the site two years ago. “Though it was difficult ... Read more