Science News Feature

Silicon chips can store data in billionths of a second, but phase-change memory could be 1,000 times faster, while using less energy and requiring less space. Silicon memory chips come in two broad types: volatile memory, such as computer RAM that loses data when the power is turned off, and nonvolatile flash technologies that store information even after we shut off our smartphones.

Scientists in their preliminary findings suggest signs of life from under Mars' surface may not survive in rocks excavated by some meteorite impacts. Scientists analysing samples from Mars' surface have so far not conclusively detected organic compounds that are indigenous to Mars, which would be indicators of past or present life. The inconclusive results mean that researchers are now suggesting that a good place to find these...

It stands to reason in a healthy environment that prey should always vastly outnumber the predators that eat them. But researchers reporting in Current Biology on July 28 have found that sometimes, even in the most untouched environments on the planet, that food pyramid can be turned upside down.

Even if people completely stopped converting tropical forests into farmland, the impacts of tropical deforestation would continue to be felt for many years to come. That's the conclusion of researchers reporting in Current Biology on July 28 who have used historical rates and patterns of tropical deforestation around the globe to estimate the resulting carbon emissions and species losses over time.

By monitoring stem cell differentiation on gels that mimic the stiffness and nanofibrous structure of biological tissue, researchers have identified the specific molecules that stem cells use when selecting bone and cartilage fates. When fed to standard stem cell cultures, these molecules (mostly lipid and cholesterol metabolites) were then found to guide stem cells to generate desired cell types. The study, which shows how new biomaterials...

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A drink developed for soldiers to generate energy from ketones rather than carbs or fat allowed highly trained cyclists to add up to 400 meters of distance to their workouts, a UK-led study reports July 27 in Cell Metabolism. The supplement, which will be commercially available within the year,...

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Antibodies that specifically protect against Zika infection have been identified in mice, report Washington University School of Medicine in St. Louis researchers on July 27 in Cell. This is the second publication in recent weeks (another paper showing human Zika antibodies appeared in Science...

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Viral hepatitis has become one of the leading causes of death and disability across the globe – killing at least as many people annually as TB, malaria or HIV/AIDS. This is the finding of new research from scientists at Imperial College London and University of Washington, who analysed...

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A new study of the early universe reveals how it could have been formed from an older collapsing universe, rather than being brand new. The universe is currently expanding and it is a common theory that this is the result of the 'Big Bang' - the universe bursting into existence from a...

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Science News Desk Tue, 08/09/2016

The solar wind Oxygen and Carbon charge states (O5+ to O7+, and C4+ to C6+) freeze-in at very similar heights in the 1.0 - 1.9 solar radii (Rs) range. Since theoretical models predict that the coronal electron temperature monotonically increases with height, we expect that the O7+/O6+ and C6+/C5...

Megan Nichols Thu, 03/31/2016

If someone had suggested ten years ago that drones would be the next hot item, they would have been called crazy. After all — drones are military technology, right?

Science News Desk Thu, 10/29/2015

"Blood-based ‘‘liquid biopsies’’ provide a means for minimally invasive molecular diagnostics, overcoming limitations of tissue acquisition. Early detection of cancer, clinical cancer diagnostics, and companion diagnostics are regarded as important applications of...

Science News Desk Wed, 09/30/2015

3He-rich solar energetic particle events are associated with magnetic reconnection in solar active regions, that produce small events with enrichments of the rare isotope 3He by factors of ≥ 1000 and nuclei from C to Fe by factors of 3-10 (e.g., ACE News #171, 169, 137). Studying 3He-rich SEP...

Science News Desk Mon, 09/28/2015

The National Institutes of Health today awarded 13 grants to research institutions around the country as part of a landmark study about the effects of adolescent substance use on the developing brain. The Adolescent Brain Cognitive Development (ABCD) Study will follow approximately 10,000...