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By Henning Gloystein LONDON (Reuters) - The Fukushima disaster could lead to a 15 percent fall in world nuclear power generation by 2035, while power demand at the same time could rise by 3.1 percent a year, according to a draft copy of the International Energy Agency's 2011 World Energy Outlook. [More]

By Henning Gloystein LONDON (Reuters) - The Fukushima disaster could lead to a 15 percent fall in world nuclear power generation by 2035, while power demand at the same time could rise by 3.1 percent a year, according to a draft copy of the International Energy Agency's 2011 World Energy Outlook. [More]

Mars may be a small planet, but it has had an outsize appeal to storytellers and filmmakers over the years.

After being isolated from the rest of the world for nearly a year and a half, sealed away in a mock spacecraft, six volunteer astronauts "returned" to Earth today (Nov. 4) to end a simulated mission to Mars and back. [More]

WASHINGTON -- Our culture of sitting may be responsible for 173,000 cases of cancer each year, according to new estimates. Physical inactivity is linked to as many as 49,000 cases of breast cancer and 43,000 cases of colon cancer a year in the United States, said Christine Friedenreich, an epidemiologist at Alberta Health Services-Cancer Care in Canada. [More]

Plants have been using a green pigment for billions of years to capture sunlight, turning it into a flow of electrons and storing its energy in the chemical bonds of big organic molecules (also known as food). Given that successful history, chemist Michael Graetzel of the Swiss Federal Institute of Technology in Lausanne and his colleagues turned to a compound similar in shape and color to chlorophyll when they set out to build a better solar cell.

They say what doesn’t kill you makes you stronger. But sometimes what makes you stronger can kill you, at least when it comes to blood-clotting

Climate change and expanding seas could cause the waters beneath the Golden Gate Bridge to rise 3 to 4 feet by century's end, a new study finds. [More]

When Mars orbiters decades ago spotted valleys and other fluvial landforms on the surface of the Red Planet, a tantalizing idea came to the fore. Perhaps, planetary scientists ventured, ancient Mars was blanketed by a thick atmosphere that kept the planet much warmer and wetter than it is now, with flowing water, lakes and maybe even an ocean covering at least part of its surface. And if Mars had water some three billion to four billion years ago, they wondered, why not life?

High voltage cables are typically insulated with special water-resistant polymers that have high-dielectric strength. When the cables get whacked by an especially strong rain or snow storm the insulation may not block all of the moisture. The leaks can lead to a loss of electrical current or even damage to the cables.

In the classic book series, Little House on the Prairie , Pa's wanderlust repeatedly drives the Ingalls family westward past the edges of civilization.

(Updates toll, adds color) MUSCAT, Nov 3 (Reuters) - The death toll from a tropical [More]

Yahoo is trying to put the focus back on the e-mail, content, advertising and other Web-based services it offers following the company’s unceremonious dumping of former CEO Carol Bartz in September and a growing din of speculation that the company may soon be bought . At a press event Wednesday hosted at its Sunnyvale, Calif., headquarters, Yahoo touted several recently announced services, most of them relying on a higher degree of personalization to keep visitors within the company’s network of about 100 Web sites. Whether Yahoo’s approach to intensify personalization will stand out amidst similar efforts by other large providers of Web content and services Google , Facebook and Apple, to name just a few remains to be seen