The soil on Mars may be suitable for cultivating food crops. In a unique pilot experiment, a scientist tested the growth of 14 plant varieties on artificial Mars soil over 50 days. To his surprise, the plants grew well; some even blossomed.
A high-tech screening tool for cervical cancer is facing pushback from more than a dozen patient...
Exposure to noise levels equivalent to 85 dBA— a decibel scale that accounts for how sensitive...
The debate over salt intake has filled the pages of health magazines and newspapers for years....
The debate over salt intake has filled the pages of health magazines and newspapers for years. Now, a new study suggests that a 15 percent drop in daily salt intake in England between 2003 and 2011 led to 42 percent less stroke deaths and a 40 percent drop in deaths from coronary heart disease.
Pork products cost about 10 percent more than they did last year, and economists expect the prices to continue rising because of diarrhea viruses currently devastating the pork industry. That's why researchers have developed new tests they hope will mitigate the spread of these viruses.
The headwaters for Puget Sound’s famously rich waters lie far below the surface, in a submarine canyon that draws nutrient-rich water up from the deep ocean. New measurements may explain how the Pacific Northwest’s inland waters are able to support so many shellfish, salmon runs and even the occasional pod of whales.
Scientists first discovered that some sponges are carnivorous about 20 years ago. Since then only seven carnivorous species have been found in all of the northeastern Pacific. Now, a paper describes four new species of carnivorous sponges living on the deep seafloor, from the Pacific Northwest to Baja California.
French investigators have begun taking DNA samples from 527 male students and staff at a high school— including boys as young as 14— as they search for the assailant who raped a teenage girl on the closed campus.
Forests growing in fertile soils, with ample nutrients, are able to sequester about 30 percent of the carbon they take up during photosynthesis. In contrast, forests growing in nutrient-poor soils may retain only 6 percent of that carbon.
In a new video, researchers look at the science behind the world's most popular drug, caffeine, including why it keeps you awake and how much is too much.
In a feat of reverse tissue engineering, researchers have begun to unravel the complex genetic coding that allows embryonic cells to proliferate and transform into all of the specialized cells that perform a myriad of different biological tasks.
Scientists have unearthed still more evidence that antibiotics can contribute to obesity. New research suggests that patients on long-term antibiotic treatment gained weight and had significant changes in their gut microbiota.
Researchers coaxed human embryonic stem cells to turn into working spinal cord cells more efficiently by growing the cells on a soft, ultrafine carpet made of a key ingredient in Silly Putty.
Ecologists say findings from a collaboration that spans four continents can improve our understanding of hydropower and will benefit fish around the globe.
Fish living on coral reefs where carbon dioxide seeps from the ocean floor are less able to detect predator odor than fish from normal coral reefs, according to a new study.
A new study reveals how the brain achieves focused attention on faces or other objects: a part of the prefrontal cortex known as the inferior frontal junction controls visual processing areas that are tuned to recognize a specific category of objects.
Treatment options for the 170 million people worldwide with chronic Hepatitis C virus are evolving rapidly, although the available regimens often come with significant side effects. Two multi-center clinical trials show promise for a new option that could help lead to an increase in patients cured with a much more simple and tolerable all-oral therapy.
A different kind of jet-lag mobile app, released by mathematicians, reveals previously unknown shortcuts that can help travelers snap their internal clocks to new time zones as efficiently as possible.
In an attempt to understand exactly what happens in the brain of schizophrenic people, researchers have analyzed proteins in the brains of rats that have been given hallucinogenic drugs. This may pave the way for new and better medicines.
An experiment, which will test how plant cells sense and respond to different levels of gravity, is scheduled to launch aboard the SpaceX Falcon 9 rocket from Cape Canaveral on Monday.
New research shows that fruit flies are secretly harboring the biochemistry needed to glow in the dark— otherwise known as bioluminescence.
By analyzing samples from the Greenland ice sheet, atmospheric scientists found clear evidence of the U.S. Clean Air Act. They also discovered a link between air acidity and how nitrogen is preserved in layers of snow.
A fungal disease that has killed millions of North American bats is spreading and has now been detected in half of the U.S.
Not many people achieve the recommendation of five portions of fruits and vegetables per day – the current average intake is just under four. But, the reduced risk of dying from cancer and heart disease is associated with any increased intake of vegetables and fruit over and above one portion per day. So the more you eat, the more you reduce your risk.
A new psychology study using mice provides evidence that being overweight makes people tired and sedentary— not the other way around.
T-cells use a complex process to recognize foreign pathogens and diseased cells. Researchers have added a new level of understanding to that process by describing how the T-cell receptors use mechanical contact– the forces involved in their binding to the antigens– to make decisions about whether or not the cells they encounter are threats.
Scientists have pinpointed the location of a gene in a little-known ancient grass that could help save one of the world's most important cereal crops from an unrelenting fungus.
Researchers, working at the famous La Brea Tar Pits, are probing the link between climate warming and the evolution of Ice Age predators, attempting to predict how animals will respond to climate change today.
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