News
- Anthropology
European face-off for early farmers
A new analysis of modern and ancient human skulls supports the idea that early farmers in the Middle East spread into Europe between 11,000 and 6,500 years ago, intermarried with people there, and passed on their agricultural way of life to the native Europeans.
- Health & Medicine
Protein exposes long-term risk from heart problems
Elevated blood concentrations of a certain protein can signal risk of death in people with heart problems.
- Planetary Science
Moon spray
The Cassini spacecraft has found conclusive evidence that the south pole of Saturn's moon Enceladus spews jets of icy particles into space.
- Earth
Beyond the ABC’s: North Atlantic posts record hurricane season
The 2005 hurricane season in the North Atlantic shattered a number of records, including several that were decades old.
- Humans
Stem Cell Controversy: Scientist is retracting landmark finding
A South Korean researcher who claimed to have cloned the first human embryonic stem cell is now asking that some of his published work be retracted.
- Chemistry
Mixed Message: Pheromone blend sends signal
The meaning of a chemical message released by male Asian elephants depends on the chemical's total concentration as well as on the balance of the chemical's two forms.
- Animals
Ant Iron Chefs: Larvae fix dinner but don’t sneak snacks
Movies of an ant colony show that larvae are the ones that prepare dinner when meat is on the menu. With Video.
- Tech
Narrow Escape: Sharp nanogutters hustle out wetness
Nanochannels with sharply tapered edges can dramatically boost fluid flow rates and potentially play a role in improved microchip cooling, fabrics to wick away perspiration, and other uses.
- Health & Medicine
Mixing Vessel: Air pollution helps cholesterol clog arteries
When paired with a diet high in fat, breathing polluted air on a regular basis accelerates the accumulation of dangerous plaques in arteries.
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Pumping Out Hope: Stem cells secrete brain-preserving protein
Researchers have turned stem cells into living drug pumps that could eventually treat Parkinson's disease.
- Paleontology
Mammoth Findings: Asian elephant is closest living kin
DNA studies suggest that the woolly mammoth is more closely related to the Asian elephant than to the African elephant.
- Earth
Satellite makes finest map yet of Antarctica
Using data gathered by a satellite launched almost 3 years ago, scientists have assembled the most comprehensive high-resolution map of Antarctica that's ever been made.
