Medicare's randomized trial of a new bundled payment model for hip and knee replacement surgeries led to $812 in savings per procedure, or a 3.1 percent reduction in costs, when compared with tra..

Large differences in radiation doses used for CT scans are mainly due to how the scanners are used by medical staff rather than differences in the patients scanned or the machines used, finds a new st..

There is no compelling evidence to indicate important health benefits of non-sugar sweeteners, and potential harms cannot be ruled out, suggests a new review.

Scientists from NASA's New Horizons mission released the first detailed images of the most distant object ever explored — the Kuiper Belt object nicknamed Ultima Thule. Its remarkable appearance..

Researchers have analyzed dust deposited off the coast of west Africa over the last 240,000 years, and found that the Sahara, and North Africa in general, has swung between wet and dry climates every ..

New study results contribute to understanding of patterns of cognitive functioning in adults with autism and highlight the importance of a broader approach when studying cognition.

Winter snows in the Sierra Nevada Mountains create the snowpacks that serve as a primary water source for the western U.S. Due to rising average temperatures, snowpacks in the Great Basin appear to be..

One answer to our greenhouse gas challenges may be right under our feet: Soil scientists have found that minerals in soil can hold on to a significant amount of carbon pulled from the atmosphere. It&#..

In optogenetics, scientists use light to turn groups of neurons in the brain on or off. New research demonstrates a new optogenetics method that eliminates the need for bulky optical fibers, gives res..

In China, the rapid reduction of the pollutant PM 2.5 dramatically altered the chemistry of the atmosphere, leading to an increase in harmful ground-level ozone pollution, especially in large cities.