This is the sampling trench for dust studies on Taylor Glacier. Windblown dust from local sources contaminates the upper ice layers and uncontaminated samples are obtained from a meter below the glacier's surface.

Hearing quality restored with bionic ear technology used for gene therapy

This shows regenerated auditory nerves after gene therapy (top) compared with no treatment (below).Researchers at UNSW Australia have for the first time used electrical pulses delivered from a cochlear implant to deliver gene therapy, thereby successfully regrowing auditory nerves.

How a plant beckons the bacteria that will do it harm

This is an infection of tomatoes by <i>Pseudomonas syringae</i>.A common plant puts out a welcome mat to bacteria seeking to invade, and scientists have discovered the mat's molecular mix.

Increased infrastructure required for effective oil spill response in US Arctic

A changing climate is increasing the accessibility of U.S. Arctic waters to commercial activities such as shipping, oil and gas development, and tourism, raising concern about the risk of oil...

'Upside-down planet' reveals new method for studying binary star systems

What looked at first like a sort of upside-down planet has instead revealed a new method for studying binary star systems, discovered by a University of Washington student astronomer.

Scientists re-define what's healthy in newest analysis for Human Microbiome Project

As scientists catalog the trillions of bacteria found in every nook and cranny of the human body, a new look by the University of Michigan shows wide variation in the...

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Halving hydrogen

Neutron crystallography shows this iron catalyst gripping two hydrogen atoms (red spheres). This arrangement allows an uncommon dihydrogen bond to form between the hydrogen atoms (red dots).Like a hungry diner ripping open a dinner roll, a fuel cell catalyst that converts hydrogen into electricity must tear open a hydrogen molecule. Now researchers have captured a view...

High-performance, low-cost ultracapacitors built with graphene and carbon nanotubes

A scanning electron microscope image shows the ultracapacitor's composite film containing graphene flakes and single-walled carbon nanotubes.By combining the powers of two single-atom-thick carbon structures, researchers at the George Washington University's Micro-propulsion and Nanotechnology Laboratory have created a new ultracapacitor that is both high performance and...

More questions than answers as mystery of domestication deepens

Washington University biologist Ken Olsen, who studies the genetic basis of evolution in plants, and archeologist Fiona Marshall, whose research focuses on animal domestication in Africa, enjoy an interdisciplinary chat. Both contributed to a special issue of PNAS on the modern understanding of domestication.We all think we have a rough idea of what happened 12,000 years ago when people at several different spots around the globe brought plants under cultivation and domesticated animals...

'Dressed' laser aimed at clouds may be key to inducing rain, lightning

This shows University of Central Florida College of Optics and Photonics graduate students Matthew Mills and Ali Miri.The adage "Everyone complains about the weather but nobody does anything about it" may one day be obsolete if researchers at the University of Central Florida's College of Optics &...

Tracking flu levels with Wikipedia

Can monitoring Wikipedia hits show how many people have the flu? Researchers at Boston Children's Hospital, USA, have developed a method of estimating levels of influenza-like illness in the American...

From liability to viability: Genes on the Y chromosome prove essential for male survival

Despite a well-documented history of dramatic genetic decay, the human Y chromosome has over the course of millions of years of evolution managed to preserve a small set of genes that has ensured not only its own survival but also...

Scientists identify source of mysterious sound in the Southern Ocean

Scientists have conclusive evidence that the source of a unique rhythmic sound, recorded for decades in the Southern Ocean and called the "bio-duck," is the Antarctic minke whale (Balaenoptera bonaerensis)....

Cougars' diverse diet helped them survive the Pleistocene mass extinction

This is Larisa DeSantis at the La Brea Tar Pits studying the dental wear on fossil teeth of  cougars, saber-tooth cats and American lions.Cougars may have survived the mass extinction that took place about 12,000 years ago because they were not particular about what they ate, unlike their more finicky cousins -- the...

NASA satellites show drought may take toll on Congo rainforest

In the Congo rainforest, a browning trend (brown) dominates smaller areas that show a greening trend (green) during April, May and June each year from 2000 to 2012.A new analysis of NASA satellite data shows Africa's Congo rainforest, the second-largest tropical rainforest in the world, has undergone a large-scale decline in greenness over the past decade.

Mantis shrimp stronger than airplanes

This is a mantis shrimp in the lab of David Kisailus.Inspired by the fist-like club of a mantis shrimp, a team of researchers led by University of California, Riverside, in collaboration with University of Southern California and Purdue University, have...

Superconducting qubit array points the way to quantum computers

The five cross-shaped devices are the Xmon variant of the transmon qubit placed in a linear array.A fully functional quantum computer is one of the holy grails of physics. Unlike conventional computers, the quantum version uses qubits (quantum bits), which make direct use of the multiple...

Some astronauts at risk for cognitive impairment, animal studies suggest

Johns Hopkins scientists report that rats exposed to high-energy particles, simulating conditions astronauts would face on a long-term deep space mission, show lapses in attention and slower reaction times, even...

Ecology team improves understanding of valley-wide stream chemistry

Researcher Kevin McGuire takes a water sample from a forest stream.A geostatistical approach for studying environmental conditions in stream networks and landscapes has been successfully applied at a valley-wide scale to assess headwater stream chemistry at high resolution, revealing unexpected...

Study casts doubt on climate benefit of biofuels from corn residue

This is Adam Liska.Using corn crop residue to make ethanol and other biofuels reduces soil carbon and can generate more greenhouse gases than gasoline, according to a study published today in the journal...

Plants with dormant seeds give rise to more species

Seeds that sprout as soon as they're planted may be good news for a garden. But wild plants need to be more careful. In the wild, a plant whose seeds...

Surprise: Lost stem cells naturally replaced by non-stem cells, fly research suggests

Johns Hopkins researchers have discovered an unexpected phenomenon in the organs that produce sperm in fruit flies: When a certain kind of stem cell is killed off experimentally, another group...

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