Radical steps to engineer Earth’s climate by blocking sunlight could drastically cool the planet, but could just as easily worsen the situation if these projects fail or are suddenly halted,…

Commonly used by around 10 million people in east Africa and countries in the Arabian peninsula, chewing khat for its stimulant properties has also become popular in the UK among immigrants of the…

The Huygens Atmosphere Structure Instrument (HASI) scored a first in 2005 by measuring the electrical conductivity of Titan’s atmosphere. The results hint at a new way to investigate the subsurface…

Discarded crab and lobster shells may be the key to prolonging the life of microbial fuel cells that power sensors beneath the sea, according to a team of Penn State researchers. To produce energy,…

The ability to learn from experience is of central importance to human existence. It allows us to acquire many of the skills we need to complete a wide variety of complicated, multi-step tasks in an…

Scientists exploring the remote highlands of eastern Suriname discovered 24 species believed to be new to science, including an Atelopus frog with brilliant purple markings, four Eleutherodactylus…

Technically advanced molecular imaging provides a 3-D way to significantly improve the diagnosis of heart disease, according to researchers. "The exciting results of our study show that physicians…

What you buy says a lot about you, according to a new study from the June issue of the Journal of Consumer Research. Consider this goal: to spend more time with your family. If you seek out products…

It’s totally understandable to feel ambivalent when presented with both positive and negative evidence. However, people often feel ambivalent even when all the news is good or bad, anticipating…

Why does foreign money often feel like play money to travelers" Just in time for summer vacation season, an important new study from the June issue of the Journal of Consumer Research examines why…

Researchers tied the accumulation of the toxic brain protein beta-amyloid to Alzheimer's disease, according to a new study. "Our findings show that beta-amyloid is associated with brain dysfunction…

Indiana University neuroscientists Olaf Sporns and Christopher Honey find the 98 percent of brain activity that other researchers consider just background noise to be fascinating and important.…

Global warming and the destruction of natural habitats will lead to significant declines and extinctions in the world’s 8,750 terrestrial bird species over the next century, according to a study…

Researchers at the Stanford University School of Medicine have illuminated the path taken by human neural stem cells that were transplanted into the brains of rats and mice, and found that the cells…

It could be an artist’s depiction of someone’s stomach before and after a rather decadent meal. But it is a 3-D cryoelectron microscope reconstruction of the cross-section of a virus, before and…

The Library of Congress has no shortage of reading materials with more than 134 million items in its collection. This summer, a Florida State University chemist will use his knowledge of cellulose, a…

Divorce puts children at higher risk of Ritalin use compared to kids whose parents stay together, says new research by a University of Alberta sociologist, who cautions that this doesn’t necessarily…

A new study shows that use of antipsychotic drugs is associated with an early and sustained increase in risk of death when used to treat disruptive behavior of older adults with dementia. The study…

Ghost pains, it seems. Why do some people still feel discomfort long after their injuries have healed? The definitive answer -- and an effective treatment -- has long eluded scientists. Traditional…

University of Utah physicists developed small devices that turn heat into sound and then into electricity. The technology holds promise for changing waste heat into electricity, harnessing solar…