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For more than 50 years microbiologists have warned against using antibiotics to fatten up farm animals. The practice, they argue, threatens human health by turning farms into breeding grounds of drug-resistant bacteria. Farmers responded that restricting antibiotics in livestock would devastate the industry and significantly raise costs to consumers.

In April 2010, amid mounting criticism that his space plan lacked direction, President Barack Obama gave a speech in Florida to lay out a few ambitious goals he had in mind for NASA. The details of how those targets would be met remain somewhat sketchy even today, but the goals themselves were clear--sometime around 2025, the U.S. would perform an unprecedented feat.

A NASA spacecraft has captured the first-ever image of Mercury taken from orbit around the planet.

By David Cyranoski of Nature magazine TOKYO Japan has the world's densest seismometer network, the biggest tsunami barriers and the most extensive earthquake early-warning system. [More]

By Timothy Gardner WASHINGTON (Reuters) - The United States fell one spot to third place in clean-energy investment last year as the lack of a national energy policy hurt purchases in wind and solar power and other technologies, a report said on Tuesday.

To keep your car purring, you have to change the oil. Such maintenance produces eight billion gallons of used motor oil annually. Some waste oil does get re-refined to produce oil for lubrication or heating.

The Scientific American supplement from December 4th, 1886 featured a drawn reproduction of a photograph taken of Amanab, the “Greek Giant.” Amanab was born in 1868 near Kerassond in Trebizonde--a successor state of the Byzantine Empire located on the Southern shore of the Black Sea. At the time of the article, he was 18 years old and measured 7 feet 9 inches in height, had a head circumference of 26

By Alister Doyle, Environment Correspondent OSLO (Reuters) - Aircraft condensation trails criss-crossing the sky may be warming the planet on a normal day more than the carbon dioxide emitted by all planes since the Wright Brothers' first flight in 1903, a study said on Tuesday.

An artificial "leaf" that collects energy in much the same way as a natural one could provide a day's worth of power for homes without access to an electricity grid. The leaf, a silicon-based square the size of a playing card, closely mimics the way plants use the process of photosynthesis to create energy. The device is dropped into a bucket of water, or even a muddy puddle, and placed in direct sunlight

Alcoholics Anonymous, celebrating its 76th anniversary this year, counts two million mem

Spring has sprung, the sun is shining, flowers are beginning to bloom, and pollen is in the air. Often thought of as a bright and cheerful season, for many people spring is a season where their heads feel like over-ripe melons, their eyes water, and the tissue industry is kept in business. Many people feel that they may have a perpetual cold that never seems to dissipate that only gets worse in the spring.

The tentacled snake may be the strangest serpent you've never heard of. [More]

We humans are pretty smug about our large brains and sophisticated ways. But if there is one thing I have learned as a biologist, it is to never underestimate the abilities of animals that most people consider primitive and simple-minded.

Let’s say you are trying to sell cookies for a school fundraiser at the local mall, and you want to pick the ideal spot to set up your table. You’d probably look for an area with a lot of traffic.

By Yoko Nishikawa [More]