Archive: 09/20/2007

Orphan stars found in long galaxy tail

Astronomers have found evidence that stars have been forming in a long tail of gas that extends well outside its parent galaxy. This discovery suggests that such "orphan" stars may be much more prevalent ...

Sep 20, 2007
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Low vitamin D linked to higher risk of hip fracture

Women with low levels of vitamin D have an increased risk of hip fracture, according to a study led by the University of Pittsburgh Graduate School of Public Health presented this week at the 29th annual meeting of the American ...

Sep 20, 2007
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Flu virus trots globe during off season

The influenza A virus does not lie dormant during summer but migrates globally and mixes with other viral strains before returning to the Northern Hemisphere as a genetically different virus, according to biologists who say ...

Sep 20, 2007
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Dealing with threatening space rocks

Every now and then a space rock hits the world's media – sometimes almost literally. Threatening asteroids that zoom past the Earth, fireballs in the sky seen by hundreds of people and mysterious craters ...

Sep 20, 2007
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Controlling for size may also prevent cancer

Scientists at Johns Hopkins recently discovered that a chemical chain reaction that controls organ size in animals ranging from insects to humans could mean the difference between normal growth and cancer. The study, published ...

Sep 20, 2007
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Bats may use magnetic polarity for navigation

Researchers have found that bats have a special ability to detect the polarity of a magnetic field, meaning that the creatures can tell the difference between north and south. The only other animal known to ...

Sep 20, 2007 feature
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The best both of worlds -- how to have sex and survive

Researchers have discovered that even the gruesome and brutal lifestyle of the Evarcha culicivora, a blood gorging jumping spider indigenous to East Africa, can’t help but be tempted by that ‘big is beautiful’ mantra ...

Sep 20, 2007
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Gates Foundation goes after TB

The Bill & Melinda Gates Foundation, based in Seattle, has announced $280 million in grants to fight a growing tuberculosis problem.

Sep 20, 2007
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