Posted Tue Jun 30, 2009 09:26 PM ET
The World Health Organization indicates the fast-spreading swine flu could soon become a global pandemic. Read more

Posted Tue Jun 30, 2009 09:26 PM ET
Add Twitter to the toolbox for public epidemiologists in the face of an emerging disease, such as the swine flu virus now sweeping the world. Read more

Posted Tue Jun 30, 2009 09:26 PM ET
Why has the swine flu engulfing Mexico been deadly there, but not in the United States? Read more

Posted Tue Jun 30, 2009 09:26 PM ET
As reports of a unique form of swine flu erupt around the world, the inevitable question arises: Is this the big one, or will it fizzle? Read more

Posted Tue Jun 30, 2009 09:26 PM ET
A unique strain of swine flu is the suspected killer of dozens of people in Mexico. Read more

Posted Tue Jun 30, 2009 09:26 PM ET
Astronauts' meals have come a long way from the freeze-dried powders and semi-liquid pastes of decades ago: now U.S. scientists want to grow vegetables in mini-greenhouses on the moon. Read more

Posted Tue Jun 30, 2009 09:26 PM ET
Using microgravity to mimic the environment of the human gut, astronauts study salmonella in space in the hopes of developing a future vaccine. Read more

Posted Tue Jun 30, 2009 09:26 PM ET
An enterprising team at the University of Wisconsin has a novel idea for GPS technology: mounting positioning sensors onto the inhalers used by people with asthma to identify environmental triggers of lung disease. Read more

Posted Tue Jun 30, 2009 09:25 PM ET
In the Pacific Northwest, majestic volcanoes loom ominously close to major populations centers -- though quiescent now, a major eruption could take huge tolls in life and property. But their snowy peaks hold more than just the threat of eruption. Read more

Posted Tue Jun 30, 2009 09:25 PM ET
Italian Renaissance painter Caravaggio used revolutionary optical instruments to "photograph" his models more than 200 years before the invention of the camera, according to a researcher in Florence. Read more

Posted Tue Jun 30, 2009 09:25 PM ET
People and horses have trekked together through more than five millenniums, new evidence reveals. Read more

Posted Tue Jun 30, 2009 09:25 PM ET
When it comes to developing elite female athletes size makes a difference, a team of sports scientists has found. Read more

Posted Tue Jun 30, 2009 09:25 PM ET
The levels of certain toxic chemicals may be falling among Americans, suggests a new study. But is it a genuine trend? Read more

Posted Tue Jun 30, 2009 09:24 PM ET
Exposure to chemicals found in everyday products, from carpet to shampoo, may cause some degree of infertility, suggests an unsettling new study. Read more

Posted Tue Jun 30, 2009 09:24 PM ET
A century after Amundsen and Scott, today's Antarctica comes complete with Internet access and regular meals. Read more

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