News
- Earth
Bad for Baby: New risks found for plastic constituent
Early exposure to bisphenol A, a building block of polycarbonate plastics, can trigger a variety of later health problems.
- Animals
Ferrets Gone Wild: Reintroduced animals coming back in Wyoming
A Wyoming population of endangered black-footed ferrets, started from captive-bred animals, has survived difficulties and is doing well.
- Health & Medicine
Skeletal Discovery: Bone cells affect metabolism
A protein made by bone cells has a surprising influence on energy metabolism, and could have a role in treating diabetes.
- Health & Medicine
Serotonin lower in shift workers
Workers who rotate between day and night shifts have less of the brain chemical serotonin than day shift workers do.
- Earth
Beware summer radon-test results
Measuring household radon levels in summer may give misleadingly low results.
- Astronomy
Veiled black holes
Many X ray sources in the sky could be active galactic nuclei smothered by gas and dust that blocks their emission of visible and ultraviolet light.
- Materials Science
Pliable carbon
The layers of carbon atoms that form graphite can be assembled into strong but flexible "graphene paper."
- Health & Medicine
CT heart scans: Risk climbs as age at screening falls
CT scans are increasingly used to investigate heart blockages, but their X rays can increase cancer risk.
- Animals
Gender bender
Disabling a chemical-sniffing organ crucial for courting behavior makes girl mice act like frisky boys.
- Earth
Cholesterol boosts diesel toxicity
Nanoparticles in diesel exhaust can activate genes that worsen cholesterol's damaging effects.
- Planetary Science
Deep Impact and Stardust: Still on assignment
Two sturdy NASA spacecraft have new assignments, studying comets and looking for exoplanets.
- Health & Medicine
New Clues: Gene variations may contribute to MS risk
Variants of two genes encoding immune system proteins may confer a higher risk for multiple sclerosis.
