The biggest thing in the universe

British astronomers have identified a celestial object so large that it challenges scientists’ basic assumptions about the nature of the universe. Huge-LQG is a cluster of 73 quasars, each of which lies at the center of its own galaxy.The structure measures 4 billion light-years across at its greatest dimension; our own Milky Way galaxy, which is 100,000 light-years across, is […]

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Giant snails

Miami South Florida is battling a growing infestation of one of the world’s most destructive invasive species: the giant African land snail. At least 1,000 of the snails are being caught each week \ in Miami-Dade County, and a total of 117,000 of the mollusks have been caught since September 2011. They can grow as big as a rat and […]

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Standing at work to stay healthy

If you work at a desk, you should get up on your feet for at least two hours a day to avoid the serious health consequences of prolonged sitting, a panel of scientists has recommended.The average office worker sits for 10 hours a day, then heads home to spend the evening glued to a television or computer screen. A growing […]

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Nature’s cure for anxiety

People tormented by a neverending flow of negative thoughts can greatly benefit from an alternative to expensive psychotherapy or medications: a walk in the woods. Psychologists at Stanford University found that walking outdoors in natural settings can ward off the human tendency to harp on that breakup, layoff, or family problem. The study involved 38 city participants, some of which […]

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Long Dark Winter at the South Pole

Winter at the South Pole

Few people have traveled to the South Pole since Roald Amundsen and Robert Falcon Scott reached the bottom of the world in the austral summer of 1911-12. Fewer still stay for the six months of darkness in the winter at the South Pole. The first crew to winter at the South Pole was in 1957, but only 1,267 people have spent the […]

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Turning walks into watts

The average human being generates about eight watts of energy with each step, most of which is expended as vibration. It may not sound like much, but take the 30,000 or more people who pass through a major-city subway hub at rush hour, and suddenly you’ve got serious power. That’s usually a problem for architects and engineers, who have to […]

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