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Do optimists live longer?

A perennial grump? Always see the glass as half empty instead of half full? Might want to brighten up a bit – if, that is, you'd like to live longer.

March 6, 2009 — Coco Ballantyne

Because They're Worth It: 15 women receive research grants from UNESCO and L'Oreal

Fifteen female researchers are celebrating International Women's Day (March 8) a few days early. They've received fellowships of up to $40,000 each to pursue doctoral or post-doctoral research through the United Nations Education, Scientific and Cultural Organization (UNESCO)-L'Oréal For Women in Science International Fellowship program, announced this week in Paris...

March 6, 2009 — Katherine Harmon

Legislation pushes Obama's vision of "green" power lines

Senate Majority Leader Harry Reid (D–Nev.) yesterday introduced legislation that would give the feds the authority to build so-called "green" power lines to carry renewable energy, such as solar, wind and geothermal, from remote sources to the nation's electric grid...

March 6, 2009 — Larry Greenemeier

First domesticated horses in central Asia more than 5,000 years ago

It's pretty hard to milk a wild mare. So researchers attempting to determine whether ancient Botai in northern Kazakhstan had domesticated horses tested their pottery for evidence that they were as fond as their modern descendants of mare's milk (you can see [ left ] a modern mare being milked by a Kazakh woman)...

March 5, 2009 — David Biello

Are doctors zapping patients with too much radiation?

A new study says that the average American is exposed to six times more radiation from medical tests than in the early 1980s, prompting warnings that physicians may be upping patients' cancer risk by giving them unnecessary exams. 

A study by The National Council of Radiation Protection and Measurements (NCRP) shows that the average American's overall radiation exposure jumped from 3.6 millisieverts (mSv) to 6.2 mSv per year -- almost entirely a result of radiation-based medical tests...

March 5, 2009 — Coco Ballantyne

Good news on coring, not so good news for a member of the crew

Editor's Note: University of Southern California geobiologist Katrina Edwards is taking part in a three-week drilling project at the Atlantic's North Pond—a sediment-filled valley on the ocean floor—designed to locate and study what she calls the “intraterrestrials”: the myriad microbial life-forms living inside Earth's crust...

March 4, 2009 — Katrina Edwards

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