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* Tsunami advisory lifted an hour after quake * Nuclear watchdog, Tepco: no impact on nuclear power plants [More]

Trapping antihydrogen atoms at the European Organization for Nuclear Research (CERN) has become so routine that physicists are confident that they can soon begin experiments on this rare antimatter equivalent of the hydrogen atom, according to researchers at the University of California, Berkeley.

Illustration by Bryan Christie Design As we all have seen, nuclear power is a dangerous business. Even tearing down a plant is no easy feat

The Toshiba-Westinghouse AP1000 reactor remains a symbol of the U.S. nuclear future to supporters and opponents alike

"Meltdown." It's one of the scarier words in the nuclear lexicon. When preceded by the word "partial," it's less frightening. And " partial meltdown " was the case for three Japan reactors following the devastating earthquake and tsunami in March.

By Roberta Rampton WASHINGTON (Reuters) - Some U.S. nuclear plants are not in full compliance with rules set up after the September 11, 2001 attacks on the United States to respond to explosions and fires, a self-regulatory body for the nuclear industry has found. [More]

Ethonomic Indicator of the Day: 1,000 liters--the equivalent amount of gas you would need to get the nuclear fusion power of one liter of seawater.

(PhysOrg.com) -- Building a nuclear gamma-ray laser has been a challenge for scientists for a long time, but a new proposal for such a device has overcome some of the most difficult problems.

Japan's nuclear plant crisis with the radioactivity contamination from spent fuel pools is likely to put an overdue spotlight on stalemated U.S. policies for managing reactor fuel, authors of a Massachusetts Institute of Technology report on the nuclear fuel cycle said yesterday.

There are multiple nuclear reactors teetering on fault lines around the country, and most of them are surrounded by pools of water filled with still-very-radioactive spent fuel. The radioactivity from the now-exposed spent fuel at Fukushima is part of the reason why the situation there is so dire.

Israel's cabinet on Sunday announced it had approved the country's membership in the European Organisation for Nuclear Research, becoming the research group's first non-European delegation.

Ethonomic Indicator of the Day: 50% - The percent of Americans who disapprove of building more nuclear plants. Yesterday, the Japanese government upped the severity level of the Fukushima disaster

* Nitrogen pumped into reactor to prevent hydrogen explosion * Nuclear crisis far from under control [More]

The Russian federal space agency has revealed that on April 15th, the U.S. and Russia will meet to discuss the development of a future joint nuclear-engine powered rocket project. The announcement was made by agency director Anatoly Perminov, and the joint project will also include other nations with a "high level of reactor manufacturing technology." This list could include France, Britain, Germany, China, and Japan

For a complete list of our coverage, see our In-Depth Report " The Japan Earthquake, Tsunami and Nuclear Crisis "