Supercomputer study shows Milky Way's halo of dark matter in unprecedented detail
Nov 20, 2006 |
4.5 / 5 (61) |
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Researchers at the University of California, Santa Cruz, have used NASA's most powerful supercomputer to run the largest simulation to date of the formation and evolution of the dark matter halo that envelopes ...
Spinning Black Hole Pushes the Limit
Nov 20, 2006 |
4.7 / 5 (69) |
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The existence of black holes is perhaps the most fascinating prediction of Einstein's General Theory of Relativity. When any mass, such as a star, becomes more compact than a certain limit, its own gravity ...
Extraordinary life found around deep-sea gas seeps
Space & Earth / Earth Sciences
Nov 20, 2006 |
4.1 / 5 (46) |
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An international team led by scientists from the United States and New Zealand have observed, for the first time, the bizarre deep-sea communities living around methane seeps off New Zealand's east coast.
Male chimpanzees prefer mating with old females
Biology /
Nov 20, 2006 |
3.8 / 5 (24) |
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Researchers studying chimpanzee mating preferences have found that although male chimpanzees prefer some females over others, they prefer older, not younger, females as mates. The findings uncover a stark contrast ...
Level of important greenhouse gas has stopped growing
Nov 20, 2006 |
4.1 / 5 (20) |
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Scientists at UC Irvine have determined that levels of atmospheric methane -- an influential greenhouse gas -- have stayed nearly flat for the past seven years, which follows a rise that spanned at least two ...
Twin Star Explosions Fascinate Astronomers
Nov 20, 2006 |
4.8 / 5 (31) |
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Scientists using NASA's Swift satellite stumbled upon a rare sight, two supernovas side by side in one galaxy. Large galaxies typically play host to three supernovas per century.
Generic Method Links Quantum Dots to Proteins
Nanotechnology / Bio & Medicine
Nov 20, 2006 |
3.7 / 5 (18) |
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Quantum dots are rapidly becoming biomedical researchers’ tool of choice for adding a fluorescent label to a wide variety of biomolecules. Now, thanks to work from a multi-institutional team of investigators, researchers ...
Chemical exchanges show wasps are bad losers
Biology /
Nov 20, 2006 |
4.3 / 5 (19) |
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Wasps have more than just a sting in their tail according to new research published this week in the Proceedings of the Royal Society B, they also carry the insect version of pepper spray in their heads, which ...
New spin on electrons could improve lights, other devices
Nov 20, 2006 |
4.3 / 5 (17) |
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Troy Van Voorhis likes to watch how things work. This natural curiosity led to his current research on the behavior of electrons and how they function in various molecular systems, including artificial photosynthesis. ...
Scientists rank top 10 U.S. quake states
Space & Earth / Earth Sciences
Nov 20, 2006 |
3.6 / 5 (17) |
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Seismologists at the Nevada Seismological Laboratory have ranked the United States' most-earthquake-prone states and found Alaska is No. 1.
Spinning a new yarn: silicone fibers with living organisms
Nov 20, 2006 |
4.6 / 5 (16) |
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In a feat once as unlikely as the miller's daughter of fairytale fame spinning straw into gold, scientists in the United Kingdom have spun fine threads of biocompatible silicone that contain living human brain cells. The ...
Oceanographers Explain the Origins of Tampa Bay
Space & Earth / Earth Sciences
Nov 20, 2006 |
3.3 / 5 (12) |
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What made Tampa Bay Tampa Bay? Geological oceanographer Al Hine and colleagues Beau Suthard and Stan Locker of the University of South Florida’s College of Marine Science explain the origins of Tampa Bay’s bottom, which dates ...
Humans and chimpanzees, how similar are we?
Biology /
Nov 20, 2006 |
3.8 / 5 (17) |
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The DNA sequences of humans and chimpanzees are 98.5 percent identical, but now Uppsala University researchers can show that parts of the genetic material are missing in one species or the other.
Touch tracking bypasses mind control
Medicine & Health / Psychology & Psychiatry
Nov 20, 2006 |
3.1 / 5 (12) |
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For people unable to simultaneously rub their stomach while patting their head, a new twist may be at hand. Touch, rather than concentration, could let people multi-task with their hands, and this may also ...
Nerve fibers need specific growth factor chemical to form connections within the brain
Nov 20, 2006 |
4.8 / 5 (4) |
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A discovery on how neural circuitry develops to aid proper cerebral cortex activity may help explain the memory and cognitive decline seen in Alzheimer's disease patients – a discovery that could point toward potential treatments, ...
