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Newfound Planet Has Just Three Times Earth's Mass

The goal of finding an Earth-like planet around another star has just come closer. Astronomers announced today they have discovered a planet of about three Earth masses orbiting a star smaller than our sun.

from New Scientist

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Of Greenhouse Gases and Greenbacks

WASHINGTON—A major climate-change measure goes before the Senate this week for the first time since Democrats declared it a priority after taking control of Congress, but the long-awaited debate is ranging beyond the effects of global warming. It also is focusing on Washington's most primal issue, money.

from the Los Angeles Times (Registration Required)

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Brain Surgery: What Kennedy Experienced

Surgeons at Duke University Medical Center in Durham, N.C., report that Sen. Ted Kennedy is doing well after nearly four hours of surgery [yesterday] to remove a cancerous brain tumor.

from ABC News

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Violent Video Games -- the Myths and the Facts

True or false: Violent video games cause children to become more aggressive. Sorry, that was a trick question.

from the Christian Science Monitor

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Study Suggests Drug Can Cut Risk of Cancer's Return

CHICAGO (Associated Press) - A drug to prevent bone loss during breast cancer treatment also substantially cut the risk that the cancer would return, results that left doctors excited about a possible new way to fight the disease.

from the Baltimore Sun

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The Future Is Now? Pretty Soon, at Least

Before we get to Ray Kurzweil's plan for upgrading the "suboptimal software" in your brain, let me pass on some of the cheery news he brought to the World Science Festival last week in New York.

from the New York Times (Registration Required)

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Biomedicine: A Plateau in Childhood Obesity?

Federal officials say childhood obesity may have leveled off in the United States. A new analysis of the most recent data found the first sign since the 1980s that the number of 2-to-19-year-olds who are overweight may have stopped rising.

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Arctic Warming Brings 'Very Dramatic Changes'

The BBC reported that a Canadian military expedition has uncovered dramatic evidence of the breakup of giant Arctic ice shelves in Canada's far north. The team found a network of cracks stretching for more than 10 miles on Ward Hunt, the area's largest shelf. Scientists with the troops said it could be another indicator of climate change.

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PODCAST & VIDEO: 3D Printing Replacement Body Parts

Regenerative medicine, a fledgling field with the aim of regrowing parts from a person’s own cells, is being amplified with 3D-printing technology, which can now use organic materials to create scaffolds that cells need to grow into their final forms. Richard Wysk, a professor of industrial and systems engineering at North Carolina State University, discusses the latest successes with this research, and the timeline for creating more complicated structures.

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