News
- Physics
Seeming sedate, some solid surfaces seethe
Although they're as orderly as bathroom-floor tiles, surface atoms of copper--and perhaps other solids--actually roam randomly and widely within their grid.
- Health & Medicine
Color array reveals breast cancer types
A suite of genes lights up when researchers probe for cancer.
- Health & Medicine
Sometimes an antibiotic is much more
By reining in destructive enzymes in the body, tetracyclines can thwart various diseases, including periodontal bone loss and cancer.
- Paleontology
Extinctions Tied to Impact from Space
Evidence trapped in 250-million-year-old sediments may help researchers pin the ultimate blame for the massive extinctions that occurred then on the impact of an extraterrestrial object about 9 kilometers across.
- Health & Medicine
Calcium supplements for chocolate
Using soap chemistry, scientists prevented some of chocolate's saturated fat--and calories--from being absorbed.
- Health & Medicine
Can childhood diets lead to diabetes?
Prolonged consumption of foods that break down quickly into simple sugars appears to foster obesity and vulnerability to diabetes, an animal study shows.
- Chemistry
Research shows why water acts weird
A new technique shows a link between water's unusual physical properties and its abnormal molecular structure.
- Chemistry
New all-metal molecules ape organics
Researchers have stumbled upon the first all-metal, aromatic molecules.
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Organ donations take family toll
Taiwanese people who donate organs from a deceased family member still support that decision 6 months later, despite frequently experiencing negative consequences related to their culture and religion.
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Hormone therapy may prove memorable
Healthy, older women may be protected against losses of verbal memory that typically occur with age if they receive hormone-replacement therapy.
- Planetary Science
Happy landing: Craft descends onto Eros
On Feb. 12, NEAR Shoemaker became the first spacecraft to land on an asteroid, the space rock 433 Eros.
- Archaeology
Maize domestication grows older in Mexico
Maize cultivation existed in southern Mexico at least 6,300 years ago, according to a recent radiocarbon analysis of two maize cobs unearthed in a cave nearly 40 years ago.
