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First demonstration of new laser-driven accelerator technology
A team of UK scientists has used, for the first time, an extremely short-pulse laser to accelerate high-energy electrons over an incredibly short distance. Current accelerators can be hundreds of metres long, this is just a millimetre long. view more (2004-09-28)
Dark matter mystery deepens in cosmic 'train wreck'
Astronomers have discovered a chaotic scene unlike any witnessed before in a cosmic "train wreck" between giant galaxy clusters. view more (2007-08-17)
Supernova radiation simulated in Virtual Reality
To astrophysicists, the energy-charged x-ray radiation on the fringes of a supernova explosion has long been enigmatic. It hasn't been possible to explain how the electrons are able to accelerate to nearly the speed of light. Now scientists in England and in Linköping, Sweden, have hit upon a possible explanation by combining supercomputer... view more... (2001-12-20)
New Hypothesis Of The Tunguska Explosion
The event which occurred almost a hundred years ago in Podkamennaya Tunguska has drawn scientists` attention again. What actually exploded at that time in the remote taiga, the power of explosion being equal to the 50-megaton H-bomb? The hypothesis that it was a meteorite or any other extraterrestrial object has not quite satisfied inquisitive... view more... (2002-08-23)
Ideas on gas-giant planet formation take shape
Rocky planets such as Earth and Mars are born when small particles smash together to form larger, planet-sized clusters in a planet-forming disk, but researchers are less sure about how gas-giant planets such as Jupiter and Saturn form. view more (2006-03-23)
Photocell Provides Both Heat And Electricity
In 1969, scientists at the Ioffe Physico-Technical Institute, St. Petersburg made heterostructured photoelectric cells based on the elements of the third and the fifth group of the periodic table (for example, gallium arsenide). Now the photocells can find application not only in space, but also on Earth. To make them working the sunlight is not... view more... (2001-11-27)
Stretchable silicon could be next wave in electronics
Researchers at the University of Illinois at Urbana-Champaign have developed a fully stretchable form of single-crystal silicon with micron-sized, wave-like geometries that can be used to build high-performance electronic devices on rubber substrates. view more (2005-12-16)
Study, meta-analysis examine factors associated with death from heatstroke
Individuals who live in a nursing home or take medication to lower blood pressure appear more likely to die during or following hospitalization for heatstroke. view more (2007-08-14)
New analysis puts dark matter back into elliptical galaxies
According to the prevailing "cold dark matter" theory of the evolution of the universe, every galaxy is surrounded by a halo of dark matter that can only be detected indirectly by observing its gravitational effects. view more (2005-09-29)
Huge tsunami spurred progress, revealed needs
The catastrophic tsunami that struck Indonesia and East Asia almost a year ago has done much to heighten the interest, research programs and preparations in the United States for events of this type, but experts say there are areas that need more attention and challenges yet to be met. view more (2005-12-05)
NIST super-sensors to measure 'signature' of inflationary universe
What happened in the first trillionth of a trillionth of a trillionth of a second after the Big Bang? view more (2009-05-04)
Launch of Ariadna to boost advanced space research in Europe
Will spacecraft travelling through interplanetary space be able to determine their positions by using signals from dead stars as astronomical clocks? What is the likelihood of artificial muscles made from electro-active polymers replacing mechanical parts in spacecraft? Will it ever be possible to conceive an interstellar highway in which... view more... (2003-10-13)
Researchers learn from analyses of rare tsunami earthquake
Analyses of a classic, slow-rupturing tsunami earthquake whose massive waves devastated the coast of Java, Indonesia, this past summer are providing insight to seismologists and engineers, who want to better understand these rare events, recommend strategies to improve safety and perhaps provide long-range forecasts of potential danger zones... view more... (2006-12-07)
Astronomers discover two new planets, both among the hottest ever
Astronomers have discovered two new planets outside our solar system, both extremely close to their stars and thus among the hottest ever found. view more (2006-09-27)
Silicon photonic crystals key to optical cloaking, researchers say
In computer simulations, the researchers have demonstrated an approximate cloaking effect created by concentric rings of silicon photonic crystals. The mathematical proof brings scientists a step closer to a practical solution for optical cloaking. view more (2008-06-26)
Nutrient recycling - the ideal way to avoid nutrient limitation in a grazer community
The rocky shore of Lake Erken, Sweden, is inhabited by the sessile psychomyiid caddisfly Tinodes waeneri (L.). The larva lives in a gallery, consisting of a spun silken web plus other organic and inorganic material associated with the web (Danecker 1961, Becker 1993, Hasselrot 1993a). The additional organic material includes detritus and living... view more... (2000-01-17)
Missing planets attest to destructive power of stars' tides
During the last two decades, astronomers have found hundreds of planets orbiting stars outside our solar system. New research indicates they might have found even more except for one thing - some planets have fallen into their stars and simply no longer exist. view more (2009-04-28)
Impact of renewable energy on our oceans must be investigated, say scientists
Scientists from the Universities of Exeter and Plymouth are today calling for urgent research to understand the impact of renewable energy developments on marine life. view more (2009-09-17)
For The First Time, Patterns Of Excitation Waves Found In Brain's Visual Processing Center
Neuroscientists have long believed that vision is processed in the brain along circuits made up of neurons, similar to the way telephone signals are transferred through separate wires from one station to another. view more (2007-08-01)
Shoulder tapping -- U of M study finds young men more willing to purchase alcohol for underage youth
Nearly 20 percent of young males are willing to purchase alcohol for underage youth when approached outside of an alcohol establishment, according to researchers at the University of Minnesota School of Public Health. view more (2007-06-26)
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