New radioactive waste leak found in tank at Hanford nuclear site

An aging tank of high-level radioactive waste is leaking at the Hanford nuclear site in south-central Washington state at the rate of up to 300 gallons a year, federal authorities disclosed Friday after discovering a dip ...

2 space rocks hours apart point up the danger

(AP)—A space rock even bigger than the meteor that exploded like an atom bomb over Russia could drop out of the sky unannounced at any time and wreak havoc on a city. And Hollywood to the contrary, there isn't much the ...

Whizzing asteroid turns rocket scientists' heads

(Phys.org)—International leaders in asteroid and comet research are gathering at the University of Central Florida in Orlando Friday, Feb. 15, for a special "viewing party" that will climax with asteroid 2012 DA14 zipping ...

Nuclear weapons' surprising contribution to climate science

Nuclear weapons testing may at first glance appear to have little connection with climate change research. But key Cold War research laboratories and the science used to track radioactivity and model nuclear bomb blasts have ...

Europe-US deal to curb highly enriched uranium use

Three of the world's top suppliers of medical isotopes on Monday announced plans to work toward phasing out the use of highly enriched uranium in the production process under a deal with the United States.

Fukushima caesium leaks 'equal 168 Hiroshimas'

Japan's government estimates the amount of radioactive caesium-137 released by the Fukushima nuclear disaster so far is equal to that of 168 Hiroshima bombs, a news report said Thursday.

US nuclear material safe despite wildfire: officials

Radioactive material stored at the top US nuclear laboratory is safe despite a threatening wildfire which has closed the Los Alamos National Lab (LANL) until Wednesday and forced thousands to evacuate, officials said.

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