The brighter area represents the edge of the coronal mass ejection -- a large slinky-like structure known as a flux rope -- while the fainter area beyond that represents the bow shock. Measuring the distance between these two can help scientists measure the magnetic field strength in the corona. Credit: Gopalswamy/Astrophysical Journal LettersThose who study the sun face an unavoidable hurdle in their research – their observations must be done from afar. Relying on images and data collected from 90 million miles away, however, makes it tough to measure the invisible magnetic fields sweeping around the sun.
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Researchers from the University of Maryland and the CNST’s Shaffique Adam have recently published a detailed review of the electronic transport properties of two-dimensional graphene.
Researchers from North Carolina State University have developed a memory device that is soft and functions well in wet environments – opening the door to a new generation of biocompatible electronic devices.
Rice University scientists have achieved a pivotal breakthrough in the development of a cable that will make an efficient electric grid of the future possible.
Researchers at MIT have found a way to control precisely the shapes of submicroscopic wires deposited from a solution — using a method that makes it possible to produce entire electronic devices through a liquid-based process.
Until recently, migration patterns, such as those adopted by birds all across the Amazonian rainforest, have not been thought to play an important role in the spreading of beneficial genes through a population.
(PhysOrg.com) -- Imagine a battery that truly does keep on going and going -- and not for just a few years, but close to decades.
Photo-induced phase transition (PIPT) has caused great excitement in materials science because ultra-fast alteration of the magnetic, dielectric, structural and optical properties of materials can be brought about with very weak photonic excitation as a result of cooperative interactions. An essential question that arises is how we can identify a novel phase of solid that is uniquely generated under photo-excited conditions. Such a novel phase is often referred to as a 'hidden state'. Despite intensive efforts to identify the structures of hidden states in various systems, few cases have been explored so far because of the technical difficulty of studying the transient lattice structure of solids.
(PhysOrg.com) -- University of Warwick physicist has produced a galaxy sized solution which explains one of the outstanding puzzles of particle physics, while leaving the door open to the related conundrum of why different amounts of matter and antimatter seem to have survived the birth of our Universe.
(AP) -- Exxon Mobil Corp. said Wednesday that it plans to use vacuum trucks to suck any remaining oil from a failed pipeline near Laurel that spilled an estimated 42,000 gallons of crude into the Yellowstone River.
Put simply, we cannot survive without soil. Its rich combination of minerals, carbon-rich organic matter and water supports plant life. It also harbours its own diverse ecosystem of millions of microbes and fauna that aerate the soil, cycle nutrients, decompose dead matter and mineralise rock fragments around them.
There is literally a way to undercut dust emissions in the very driest parts of the Pacific Northwest's Columbia Plateau region, according to a U.S. Department of Agriculture (USDA) scientist.
If you think of the shuttle as a kind of big space bus, the future for US astronauts will be a lot like squeezing into a three-seat compact car, made by Russia, for a very long road trip.
After the recent great quakes that have swept away entire coastlines and cities in Japan, Haiti and Sumatra, scientists are now looking hard at the nation that may suffer the gravest threat of all: Bangladesh. A new documentary from the Earth Institute follows seismologists as they trace signs of deeply buried active faults, past movements of the earth, and sudden, catastrophic river-course changes.
Australian scientists have sought the help of the United States and Australian navies to plug a critical gap in their Argo ocean and climate monitoring program caused by Somali pirates operating in the western Indian Ocean.
Although the nation’s air has grown significantly cleaner in recent decades, about 40 percent of Americans — 127 million people — live in counties where pollution levels still regularly exceed national air quality standards established by the Environmental Protection Agency.
(AP) -- After a hectic week in orbit, the astronauts on NASA's last space shuttle flight got some time off Thursday to savor their historic experience.
A Kansas State University geographer is part of a research team out to prove what environmental scientists have suspected for years: Increasing the production of soybean and biofuel crops in Brazil increases deforestation in the Amazon.
(PhysOrg.com) -- A spinning neutron star is tied to a mysterious tail -- or so it seems. Astronomers using NASA's Chandra X-ray Observatory have found that this pulsar, known as PSR J0357+3205 (or PSR J0357 for short), apparently has a long, X-ray bright tail streaming away from it.
Astronomy & Astrophysics is publishing a new study of the orbital evolution of minor planets Ceres and Vesta, a few days before the flyby of Vesta by the Dawn spacecraft. A team of astronomers found that close encounters among these bodies lead to strong chaotic behavior of their orbits, as well as of the Earth's eccentricity. This means, in particular, that the Earth's past orbit cannot be reconstructed beyond 60 million years.
Researchers at the University of Illinois have become the first to record an airglow signature in the upper atmosphere produced by a tsunami using a camera system based in Maui, Hawaii.
The Monitor of All-sky X-ray Image, or MAXI for short, spends its time aboard the ISS conducting a full sky survey every 92 minutes. Its sole purpose is to monitor X-ray source activity and report. Unlike stars seen in visible light, X-ray sources aren’t evenly distributed and can exhibit some highly unusual behavior. What causes these erratic moments?
Until recently, astronomers were highly skeptical of whether or not planets should be possible in multiple star systems. It was expected that the constantly varying gravitational force would eventually tug the planet out of orbit. But despite doubts, astronomers have found several planets in just such star systems. Recently, astronomers announced another, this time in the trinary star HD 132563.
Trees absorb carbon dioxide from the atmosphere to grow, so forests have long been proposed as a way to offset climate change.
Large, marine-calving glaciers have the ability not only to shrink rapidly in response to global warming, but to grow at a remarkable pace during periods of global cooling, according to University at Buffalo geologists working in Greenland.
Those who study the sun face an unavoidable hurdle in their research – their observations must be done from afar. Relying on images and data collected from 90 million miles away, however, makes it tough to measure the invisible magnetic fields sweeping around the sun.
In 1997, the actress and singer Julie Andrews lost her singing voice following surgery to remove noncancerous lesions from her vocal cords. She came to Steven Zeitels, a professor of laryngeal surgery at Harvard Medical School, for help.
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