The federal government's only underground nuclear waste dump remained shuttered Monday and state environment officials said they have set deadlines for the U.S. Department of Energy and its contractor to deal with radioactive waste left above ground at the repository.
While one of the newer double-walled nuclear waste storage tanks at a Washington state complex has leaked, six others have "significant construction flaws" that could lead to additional leaks.
Back-to-back accidents and a never-supposed-to-happen above-ground radiation release that exposed at least 13 workers have shuttered the federal government's only deep underground nuclear waste dump indefinitely and have raised questions about a cornerstone of the Department of Energy's $5-billion-a-year program for cleaning up legacy waste scattered across the country.
More analysis is needed to determine exactly how much radiation workers were exposed to during a recent leak at the nation's underground nuclear waste dump in southeastern New Mexico.
Thirteen workers at the nation's underground nuclear waste dump in southeastern New Mexico have tested positive for radiation exposure after a recent leak released toxic particles in and around the plant, officials announced.
Officials investigating a leak from the federal government's only underground nuclear waste dump tried to reassure skeptical southeastern New Mexico residents Monday night that their health is safe.
U.S. Sen. Ron Wyden, D-Ore., wants an investigation into the treatment of whistleblowers at the Hanford Nuclear Reservation, after two were fired in the past five months after raising safety concerns about the construction of a $13 billion plant to treat the site's most dangerous radioactive wastes.
Highly radioactive water has overflowed from a storage tank at Japan's crippled nuclear power plant, but the operator said Thursday it did not reach the Pacific Ocean.
Officials checking the presence of airborne radiation at an underground site in southeastern New Mexico where the U.S. government seals away low-grade nuclear waste say surface tests have detected no contamination.
The company that operates a southeastern Pennsylvania nuclear plant ;says it may decide within a year to shut down some of its 11 nuclear power stations if a way to make them profitable can't be found.
Scientists say they've taken a key step toward harnessing nuclear fusion as a new way to generate power, an idea that has been pursued for decades.
Crews declared a blaze at an underground nuclear repository in southeastern New Mexico snuffed out and determined that there was minimal damage after a truck hauling salt caught fire and prompted an evacuation.
A proposed uranium mine in southwestern South Dakota cleared a key regulatory hurdle Thursday when a federal agency issued a favorable environmental assessment of the project.
Senate Minority Leader Mitch McConnell on Wednesday debuted a new campaign TV ad, featuring the whispery voice of a throat cancer survivor who credits the five-term Kentucky Republican for supporting sick workers at a uranium enrichment plant.
A former supervisor at the Indian Point nuclear power plant in New York has been sentenced to 18 months of probation for trying to cover up fuel contamination.
A drop in the water level in a steam generator has automatically shut down one of the Indian Point nuclear reactors in the New York City suburbs.
Federal regulators say they're satisfied the operator of a nuclear power plant in central New York has addressed problems that led to four unscheduled reactor shutdowns last year.
Japan's government announced Friday that it will increase the amount of money it is providing to the operator of the crippled Fukushima nuclear plant to step up cleanup and decommissioning efforts.
Firefighters stopped trying to put out a large industrial fire at a federal Superfund site in central Tennessee Wednesday afternoon because of fears that two 1,000-gallon propane tanks there could explode.
In a key year for the American people’s health and the environment, the nation has expanded clean energy and efficiency and acted against climate change, but further steps are needed to protect our communities and public health in 2014, according to experts at the Natural Resources Defense Council.
The United States' top nuclear regulator said Friday that atomic energy users, including Japan, must figure out how to ultimately store radioactive waste.
UniStar Nuclear Energy is completely withdrawing its application to build a third nuclear power plant at Nine Mile Point on Lake Ontario.
The Nebraska utility that owns a nuclear power plant that has been idle since April 2011 says the troubled plant is now ready to restart, but federal regulators will make the final decision.
A missing shipment of radioactive cobalt-60 was found Wednesday near where the stolen truck transporting the material was abandoned in central Mexico, the country's nuclear safety director said.
A cargo truck hauling used medical equipment with extremely dangerous radioactive material was stolen from a gas station in central Mexico, and authorities have put out an alert in six central states and the capital to find it, Mexican and U.N. nuclear officials said Wednesday.