News
- Earth
Glacial Change: Greenland’s ice loss doubled in 2005
A host of observations suggests that Greenland's ice sheet diminished this year at a rate more than twice that seen just a few years ago.
- Health & Medicine
Shots often don’t reach muscle
Standard 3-centimeter needles are too short to penetrate the layer of fat in the buttocks of most women and most obese men, so injected medications aimed at muscle often don't reach their targets.
- Health & Medicine
New software aids virtual colonoscopy
A computer program helps radiologists spot dangerous growths in the colon without probing inside the body.
- Astronomy
Dark shadows
New radio telescope images of the center of the Milky Way make an even more compelling case that a supermassive black hole resides there.
- Earth
Microbe polishes off pollutant
Researchers have determined how long a pesticide residue would remain in the environment if the microbe Pseudomonas pavonaceae didn't metabolize it.
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Best Friend’s Genome: Dog’s DNA sheds light on human genetics, too
Scientists have published the genome of a boxer, a detailed comparison of the dog's genome with the genomes of mice and people, and a study of genetic variation among dog breeds.
- Ecosystems
When Worms Fly: Insect larvae can survive bird guts
Insects can travel as larval stowaways in the guts of migrating birds.
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Mirror Cells’ Fading Spark: Empathy-related neurons may turn off in autism
Brain cells implicated in the ability to imitate and empathize with others largely fail to function in children with autism, a new brain-imaging investigation suggests.
- Planetary Science
Red Planet Express: Mars spacecraft traces a watery tale
A Mars-orbiting spacecraft has provided new details about when and where liquid water existed on the planet.
- Physics
Instant Nano Blocks: One-step process makes trillions of DNA pyramids
Researchers have unveiled a three-dimensional building component that can be created from DNA in a simple procedure.
- Health & Medicine
Beyond Hearing: Cochlear implants work best when given early
Children born deaf who receive cochlear implants as toddlers show brain activity that's more normal than that of children getting the implants later in childhood.
- Health & Medicine
3-D Vision: New technique could improve breast cancer screening, diagnosis
An experimental alternative to standard mammography could, by the end of this decade, become an essential tool for spotting breast cancer.
