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As the condition of the stricken Fukushima Daiichi nuclear power station in Japan continues to deteriorate, nuclear safety experts, government regulators and health physicists are keeping close watch on the situation to determine the danger--both real and hypothetical--that the incident poses to people near the plant. [More]

By Fredrik Dahl VIENNA (Reuters) - Minuscule amounts of radioactive particles believed to have come from Japan's Fukushima nuclear power plant have been detected on the U.S. west coast, two diplomatic sources said Friday. [More]

This month marks the 100th anniversary of the completion of the Roosevelt Dam in Arizona. It was a major part of the Salt River project, which aimed to create hydroelectric power from the Salt River and make its surrounding lands cultivable. The dam was an engineering marvel and was built as part of the Reclamation Act passed in 1902, which sought to irrigate arid lands in the United States--about one-third of the country’s land at the time

Editor's note: Below is an excerpt from QUANTUM MAN: Richard Feynman's Life in Science (W. W

With one misstep and the snap of a trap, Tinka was broken. The 50-year-old chimpanzee’s hands were mangled and left severely deformed and almost useless

Imagine snapping a panoramic picture from the top of the Empire State Building, then zooming in on a speck to reveal a quarter lying on the sidewalk. That’s the promise of single-shot gigapixel cameras--cameras that shoot images composed of at least one billion pixels, or picture elements

1. BirdsEye Developed by the Cornell Lab of Ornithology, BirdsEye has entries on hundreds of the most frequently seen North American bird species and includes images and bird sounds

By Declan Butler Nature revealed earlier this week than an international agency set up to detect nuclear tests, the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), is transmitting detailed data on the spectrum of radionuclides and their levels in the air in and around Japan and the Asia-Pacific region to its member states each day, but that the CTBTO could not release these data to the public because it lacked a mandate to do so. Now, at least one CTBTO member state, Austria, intends to make some of the data public in the form of summary reports and forecasts of global radiation spread.

DRESDEN, Germany--How cool would it be not just to read about the craziness of quantum mechanics, but to see it--even better, do it--for yourself? Several years ago I asked virtuoso experimental physicist Paul Kwiat whether he could develop a simple demonstration anyone could do at home, and he and his undergraduate student Rachel Killmer came up with a "quantum eraser" . This week I got to see another big step toward the era of quantum homebrewers

By Ewen Callaway An experimental gene-therapy treatment for Parkinson's disease has eased the movement problems of a small number of patients and raised no major safety concerns.

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Helicopters and fire trucks proved unsuccessful at replenishing damaged nuclear fuel pools at Japan's Fukushima Daiichi plant on Thursday. The spent-fuel pools contain a large amount of radioactive material that is not contained as well as that in the reactor cores. And although information has been spotty, nuclear experts worry that this fuel--which should be submerged in circulating water to keep it from overheating--has been at least partly exposed in the pools belonging to reactors Nos.

The hydrogen explosions, melting fuel rods and radiation leaks at Japan's Fukushima Daiichi nuclear plant are having an immediate impact on perceptions of nuclear power worldwide, at a time when many countries are earnestly searching for alternatives to fossil fuels. Safety will be a major concern, particularly as emergency workers in Japan continue to battle to keep spent fuel rods stored on site at Fukushima Daiichi from melting down. [More]

Once in Resolute Bay you feel like you are at the edge of the world, your view is of nothing but snow covered hills and sea ice.

The top U.S. nuclear regulator, Gregory Jaczko, gave a dire assessment of Japan's nuclear crisis yesterday, saying that lethal radiation from uncovered spent fuel above one of the reactors could force emergency workers to abandon their fight to prevent meltdowns of damaged reactor cores at the Fukushima Daiichi plant