113,338+ results
113,338+ results for:
- Space
Pluto blushes red
Newly released Hubble images of Pluto show an abrupt and unexplained color change.
- Life
Sperm’s pore propulsion
Scientists identify a key proton channel that helps explain the dash to fertilization.
- Health & Medicine
Protein clumps like a prion, but proves crucial for long-term memory
Study in slugs hints that some molecular 'misbehavior' in neurons may help solidify learning.
- Agriculture
EPA reviews hints of weed killer’s fetal risks
The Environmental Protection Agency will be convening meetings of its Scientific Advisory Panel on pesticides throughout 2010 to probe concerns about the safety of atrazine, a weed killer on which most American corn growers rely. The first meeting of these outside experts started Tuesday. And although a large number of studies have indicated that atrazine can perturb hormones in animals and human cells — and might even pose a possible risk of cancer amongst heavily exposed people, these outcomes were not the focus of EPA’s review Tuesday. Risks to babies were.
- Earth
Oldest feathered dino shows its colors
Analysis of a fossil suggests plumage first evolved for display, not flight.
- Earth
Florida’s big chill may have hammered corals near shore
January cold snap caused rare wintertime coral bleaching and die-offs for Florida’s coral reefs.
- Health & Medicine
Journal retracts flawed study linking MMR vaccine and autism
Deleted Scenes Blog: Biomedical reporter Nathan Seppa describes latest chapter in controversy created by now debunked research.
- Physics
Algae use quantum trick to harvest light
A new study finds that proteins used in photosynthesis take advantage of electrons’ wavelike properties
- Computing
Leaf veins loopy for a reason
A computer simulation finds that leaves' circular networks are efficient at getting around damaged spots and varying distribution load.
- Health & Medicine
Small study hints SSRIs delay breast milk in new moms
Women taking the antidepressant drugs began lactating later.
- Health & Medicine
Body fat linked to late puberty in boys
Boys can take a lot of ribbing from their peers for not being macho enough. A new study now indicates that it can take longer to begin transforming into a man if a boy starts out fat.
- Space
Ancient dawn’s early light refines age of universe
Satellite images reveal new aspects of Big Bang’s relic radiation.
