Physicists Determine Source of 'Killer' Electrons in Earth's Radiation Belt
Oct 16, 2007 |
4.4 / 5 (68) |
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Electrons trapped in the outer Van Allen radiation belt, a doughnut-shaped region of high-energy particles that surrounds Earth, kept in place by our planet's magnetic field, can have velocities approaching the speed of light. ...
Probing Question: What is a neutrino?
Oct 16, 2007 |
4.4 / 5 (41) |
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Neutrinos are tiny -- really, really tiny -- particles of matter. They are so small, in fact, that they pass between, and even through, atoms without interacting at all. Neutrinos are everywhere: If you start ...
Gold nanorods shed light on new approach to fighting cancer
Nanotechnology / Bio & Medicine
Oct 16, 2007 |
4.7 / 5 (25) |
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Researchers have shown how tiny "nanorods" of gold can be triggered by a laser beam to blast holes in the membranes of tumor cells, setting in motion a complex biochemical mechanism that leads to a tumor cell's self-destruction.
Science casts doubt on famous British murder case
Oct 16, 2007 |
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Ninety-seven years after an American was hanged in London in one of the most notorious and famous murder cases in British history, forensic science at Michigan State University is producing evidence that his execution was ...
How schizophrenia develops: Major clues discovered
Oct 16, 2007 |
4.6 / 5 (22) |
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Schizophrenia may occur, in part, because of a problem in an intermittent on/off switch for a gene involved in making a key chemical messenger in the brain, scientists have found in a study of human brain tissue. The researchers ...
NASA Extends Operations for Its Long-Lived Mars Rovers
Space & Earth / Space Exploration
Oct 16, 2007 |
4.5 / 5 (17) |
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NASA is extending, for a fifth time, the activities of the Mars Exploration Rovers Spirit and Opportunity. The decision keeps the trailblazing mobile robotic pioneers active on opposite sides of Mars, possibly ...
Hubble shows 'baby' galaxy is not so young after all
Oct 16, 2007 |
4.1 / 5 (18) |
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Observations of I Zwicky 18 at the Palomar Observatory around 40 years ago seemed to show that it was one of the youngest galaxies in the nearby Universe. The studies suggested that the galaxy had erupted ...
Bouncing Bucky Balls
Nanotechnology / Nanomaterials
Oct 16, 2007 |
4.2 / 5 (14) |
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C60 molecules have an intriguing ball-shaped structure that suggests several interesting possibilities for motion on surfaces. Indeed, researchers have found that the passage of electrons through a bucky ball in a transistor ...
Ecologists discover city is 'uber-forest' for big owls
Biology /
Oct 16, 2007 |
4.8 / 5 (12) |
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It may be news to its bankers, but Charlotte, the biggest city in North Carolina and a major center of the American financial industry, is actually an old growth forest. At least that’s the way the barred owls see it.
Why are we losing Louisiana?
Space & Earth / Earth Sciences
Oct 16, 2007 |
4.2 / 5 (13) |
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The Mississippi Delta region was losing land long before Hurricane Katrina came ashore. But the correlation between land loss and the risk of flooding in the region is now more evident than ever.
Exposing the Nature of Cosmic Liaisons
Oct 16, 2007 |
4.4 / 5 (12) |
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Risa Wechsler of the Kavli Institute for Particle Astrophysics and Cosmology (KIPAC) and her collaborators have devised a powerful technique to study how interactions between galaxies affect star formation. ...
Ear infection superbug discovered to be resistant to all pediatric antibiotics
Oct 16, 2007 |
4.7 / 5 (11) |
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Researchers have discovered a strain of bacteria resistant to all approved drugs used to fight ear infections in children, according to an article to be published tomorrow in the Journal of the American Medical Association (JAMA) ...
Gold nuggets reveal their inner secrets
Space & Earth / Earth Sciences
Oct 16, 2007 |
3.8 / 5 (13) |
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A study of the characteristics of gold nuggets from around Australia has overturned many years of accepted scientific wisdom on how nuggets form.
Professor studies army-ant-following birds
Biology /
Oct 16, 2007 |
4.6 / 5 (10) |
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In the jungles of Central and South America, a group of birds has evolved a unique way of finding food – by following hordes of army ants and letting them do all the work.
Researchers measure carbon nanotube interaction
Oct 16, 2007 |
4.4 / 5 (10) |
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Carbon nanotubes have been employed for a variety of uses including composite materials, biosensors, nano-electronic circuits and membranes.
