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Spaceflight wreaks havoc on astronauts' muscles

A new study shows that despite exercise regimens designed to mitigate the atrophying effects of microgravity, astronauts on the International Space Station (ISS) are experiencing dramatic muscle loss on their missions...

April 8, 2009 — John Matson

New Google maps to guide solar, wind placement

Where should new solar and wind power facilities go? Seems many of the best potential sites, including rugged, windswept regions in the Rocky Mountains to the sun-baked Mojave Desert, contain swathes of land legally set aside as national parks, or support what remains of an endangered species' dwindling habitat, for example...

April 7, 2009 — Adam Hadhazy

Positive HIV test for VA patient

At least one patient who may have undergone a colon cancer screen with contaminated equipment at a U.S. Department of Veterans Affairs facility has tested positive for HIV.

April 7, 2009 — Jordan Lite

HIV drugs turned street drugs in South Africa

Teens in South Africa have found a new use for efavirenz (brand name Stocrin in South Africa and Sustiva in the U.S.), an antiretroviral drug that prevents HIV from making copies of itself in the body...

April 7, 2009 — Coco Ballantyne

Tornadoes, prepare to be demystified

Storm chasers, get your cameras: Tornado season is here. From April to June, more tornadoes spin up across the U.S. than during any other period. And although they've been the topic of both scientific and cinematic fascination for decades, researchers still have a lot to learn about how these deadly storms form...

April 7, 2009 — Katherine Harmon

GM, Segway roll out an electric scooter built for two

Cash-strapped General Motors Corp., which is still mulling what to do with its failing gas-guzzling Hummer Division, today showed its greener side when it unveiled Project PUMA (Personal Urban Mobility and Accessibility), a compact, battery-operated two-wheeler for two that it's developing with Segway, Inc., maker of the upright electric  lawn mower–like vehicle that debuted in 2002...

April 7, 2009 — Larry Greenemeier

The "bunny" hop: Resurrecting the Easter bilby

Rabbits aren't exactly popular in Australia, where invasive European rabbits have wreaked havoc on the country's ecology. And so, with Easter just days away, many Australian children will be celebrating not with the traditional Easter bunny, but with the Easter bilby, as the nation uses the holiday to to celebrate—and raise funds to protect—one of its most endemic, and most endangered species, the greater bilby ( Macrotis lagotis )...

April 7, 2009 — John Platt

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