News
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Yellow color gives microbe its power
The bright-yellow pigment that tints the bacteria that cause staph infections is pivotal to the microbe's virulence.
- Health & Medicine
A problem at hand for catchers
A young professional baseball catcher, who may receive more than 100 pitches per game thrown at more than 90 miles per hour, may be virtually certain to develop circulatory abnormalities in his catching hand.
- Agriculture
Soy-protein quality versus quantity
New tests show that as the protein yields of soybeans rise, the growth-enhancing quality of that protein as a food or feed decreases.
- Anthropology
People fired up Aussie extinctions
Early Australian settlers may have altered the continent's landscape around 50,000 years ago, leading to the extinction of many animal species.
- Astronomy
Core mystery
Despite new images from the Hubble Space Telescope, the brightest known supernova of the past 400 years remains a puzzle for astronomers.
- Astronomy
Triple Play: A planet with three suns
Three suns grace the skies above a newly found, Jupiterlike extrasolar planet, posing a puzzle for how massive planets form in a closely-knit, multiple-star system.
- Physics
Realistic Time Machine? New design could forgo exotic ingredient
A novel time machine concept may avoid a problem of earlier, less-practical proposals by requiring only normal matter and the vacuum known to exist in space.
- Earth
Pollution Ups Blood Pressure: Inhaled particles linked to transient effect
In a laboratory setting, volunteers breathing pollutants generated by sources such as vehicle engines experience slight but steady increases in blood pressure.
- Earth
Arctic Foulers: Foraging seabirds carry contaminants home
When seabirds go out looking for food, they can bring home traces of pollutants that build up around their nesting colonies.
- Earth
Power-laden winds sweep North America
There's more than enough wind power to satisfy the United States' energy requirements, a new analysis of weather data suggests.
- Health & Medicine
Brain Power: Stem cells put a check on nerve disorders
Adult neural stem cells protect the brain against repeated episodes of inflammation in disorders such as multiple sclerosis by killing inflammatory immune cells.
- Health & Medicine
Cancer Switch: Good gene is shut off in various malignancies
A gene called Reprimo is shut down in several cancers but rarely in healthy cells.
