A galaxy located billions of light-years away is commanding the attention of NASA’s Fermi Gamma-ray Space Telescope and astronomers around the globe. Thanks to a series of flares that began September 15, the galaxy is now the brightest source in the gamma-ray sky — more than ten times brighter than it was in the summer.
Neurology researchers have shown that feeding amino acids to brain-injured mice restores their cognitive abilities and may set the stage for the first effective treatment for cognitive impairments suffered by people with traumatic brain injuries. If these animal results can be translated to human medicine, there would be a broad clinical benefit. Every 23 seconds, [...]
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A new study on the surface chemistry of silver-colored, mercury-based dental fillings suggests that the surface forms of mercury may be less toxic than previously thought.
A new study shows that people who have been infected with West Nile virus may have persistent virus in their kidneys for years after initial infection, potentially leading to kidney problems.
Harnessing the power of “hot” electrons for solar energy has been held as a theoretical possibility. Now researchers report observing the hot electron effect in an ultra-thin solar cell for the first time and collecting the elusive charges, which are typically lost in less than one-trillionth of a second in traditional solar cells.
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Individuals taking a medication to treat depression may experience changes in their personality separate from the alleviation of depressive symptoms, according to a new report.
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A first-of-its-kind archaeological study has detected the stress hormone cortisol in the hair of ancient Peruvians, who lived between 550 and 1532 A.D.
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Scientists have proved experimentally what has been suspected since the discovery of Merkel cells in the skin over a century ago: the sense of light touch that is critical for hand dexterity would not be possible without these cells.
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New information about lightning-emitted X-rays, gamma rays and high-energy electrons during thunderstorms is prompting scientists to raise concerns about the potential for airline passengers and crews to be exposed to harmful levels of radiation.
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Men of all ages treated for prostate cancer with androgen deprivation therapy, specifically with gonadotropin-releasing hormone agonists, have an increased risk of diabetes and cardiovascular disease, according to a new study.