A high-fat, low-carb diet used to control multiple, daily and severe seizures in current and former patients is not only effective, but  also appears to have no long-lasting side effects, say scientists at Johns Hopkins Children's Center. The findings are detailed online in Epilepsia.

There's a reason attractive human faces are used to market just about everything consumers purchase today – when people see pretty faces, their brains begin computing how much the experience is worth. New brain-imaging research shows it's even possible to predict how much people might be willing to pay to see a particular face. Scientists say the findings may allow them to predict future purchases of different market segments.

Researchers at Duke University Medical Center found that as participants were watching a sequence of faces, their brains were simultaneously evaluating those faces in two distinct ways: for the quality of the viewing experience and for what they would trade to see the face again.

New images from NASA's Fermi Gamma-ray Space Telescope showing where supernova remnants emit radiation a billion times more energetic than visible light have brought astronomers a step closer to understanding the source of cosmic rays.

Cosmic rays consist mainly of protons that move through space at nearly the speed of light. In their journey across the galaxy, the particles are deflected by magnetic fields, which scrambles their paths and masks their origins.

Subtropical waters are reaching Greenland's glaciers and likely triggering an acceleration of ice loss, reports a team of researchers from the Woods Hole Oceanographic Institution (WHOI) and the University of Maine.

"This is the first time we've seen waters this warm in any of the fjords in Greenland," says Fiamma Straneo, a physical oceanographer from the WHOI. "The subtropical waters are flowing through the fjord very quickly, so they can transport heat and drive melting at the end of the glacier."

While melting due to warming air temperatures is a known event, scientists are just beginning to learn more about the ocean's impact — in particular, the influence of currents — on the ice sheet.

A new study by the Oklahoma Tobacco Research Center (OTRC) shows that concentrations of secondhand tobacco smoke inhaled in smoking rooms of restaurants and bars are exceptionally high and hazardous to health. The authors of the report say the findings justify making all public places smoke free - or ignoring private property rights and treating adults like helpless children.

According to the study, the average particulate level measured in restaurant smoking rooms was beyond the hazardous extreme based on levels established by the U.S. Environmental Protection Agency. The level found in bars was even worse.

DNA analysis of royal mummies suggest that malaria and bone abnormalities may have contributed to the death of Egyptian pharaoh King Tutankhamun, with other results appearing to identify members of the royal family, including King Tut’s father and mother, according to a new study published in the Journal of The American Medical Association. The findings may lead to a new way of researching the molecular genealogy and pathogen paleogenomics of the Pharaonic era, perhaps even a new field called 'molecular Egyptology.'