News
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Thymus twice as nice for mice
Mice have a second thymus, located in the neck.
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- Health & Medicine
A link between emotional stress and heart attacks
In some people with heart disease, a stressful event precipitates changes in blood components and flow that may trigger a heart attack.
- Planetary Science
Pluto’s posse
Images taken by the Hubble Space Telescope on Feb. 15 confirm that Pluto has two small, previously unknown moons.
- Health & Medicine
Indigestion drug makes headway
An experimental drug relieves symptoms of a form of chronic indigestion called functional dyspepsia better than a placebo does.
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Gold-Metal Results: Compounds block immune proteins
Metals such as platinum and gold keep certain proteins from stimulating the body's immune response.
- Earth
Smoldered-Earth Policy: Created by ancient Amazonian natives, fertile, dark soils retain abundant carbon
Amazonian dark earth, or terra preta in Portuguese, is attracting scientific attention for its high productivity, mysterious past, and ability to store carbon.
- Health & Medicine
Gender Gap: Male-only gene affects men’s dopamine levels
A gene found only in men affects the brain's production of dopamine, a finding that may help explain why men are more likely than women to develop Parkinson's disease and other dopamine-related illnesses.
- Astronomy
Unique Explosion: Gamma-ray burst leads astronomers to supernova
Astronomers have found a supernova associated with the second-closest-known gamma-ray burst, confirming a model in which bursts arise from material blasted into space by a supernova explosion.
- Archaeology
Ancient Andean Maize Makers: Finds push back farming, trade in highland Peru
Fossilized plant remains recovered from a nearly 4,000-year-old house in the Andes Mountains of southern Peru show that highland inhabitants cultivated maize and imported other plant foods from lowland forests at around the time that large societies developed in the region.
- Animals
Cannibal Power: Mormon crickets swarm to eat and not be eaten
What keeps the great swarms of Mormon crickets rolling across the landscape may be a combination of nutritional deficits and the risk of getting cannibalized.
- Health & Medicine
Do Over: New MS drug may be safe after all
The experimental drug natalizumab, which limits relapses in patients with multiple sclerosis, may get a second chance after being withdrawn from use in 2005.
