Researchers find connection between caloric restriction and longevity
Sep 20, 2007 |
4.8 / 5 (60) |
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For nearly 70 years scientists have known that caloric restriction prolongs life. In everything from yeast to primates, a significant decrease in calories can extend lifespan by as much as one-third. But getting under the ...
Velociraptor had feathers
Other Sciences / Archaeology & Fossils
Sep 20, 2007 |
4.9 / 5 (44) |
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A new look at some old bones have shown that velociraptor, the dinosaur made famous in the movie Jurassic Park, had feathers. A paper describing the discovery, made by paleontologists at the American Museum ...
Experiments challenge models about the deep Earth
Space & Earth / Earth Sciences
Sep 20, 2007 |
4.7 / 5 (39) |
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In the first experiments able to mimic the crushing, searing conditions found in Earth’s lower mantle, and simultaneously probe tell-tale properties of iron, scientists have discovered that material there ...
Astronomers Pinpoint Origin of Nature's Most Powerful Magnetic Bursts
Sep 20, 2007 |
4.3 / 5 (43) |
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University of Arizona astronomers have pinpointed the origin of powerful bursts from nature's most magnetic objects. The bursts are from "magnetars," some of the most enigmatic objects in the universe.
Bats may use magnetic polarity for navigation
Biology /
Sep 20, 2007 |
4.6 / 5 (36) |
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Researchers have found that bats have a special ability to detect the polarity of a magnetic field, meaning that the creatures can tell the difference between north and south. The only other animal known to ...
New research confirms Indonesian 'Hobbit' was a new species
Other Sciences / Archaeology & Fossils
Sep 20, 2007 |
4.8 / 5 (31) |
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An international team of researchers led by the Smithsonian Institution has completed a new study on Homo floresiensis, commonly referred to as the “hobbit,” a 3-foot-tall, 18,000-year-old hominin skeleton, discovered four ...
Key to longer life (in flies) lies in just 14 brain cells
Biology /
Sep 20, 2007 |
4.9 / 5 (29) |
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Two years ago, Brown University researchers discovered something startling: Decrease the activity of the cancer-suppressing protein p53 and you can make fruit flies live significantly longer.
Researchers unravel the working of the bicycle
Sep 20, 2007 |
3.7 / 5 (38) |
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For nearly 150 years, scientists have been baffled by the bicycle. How is it possible that a moving bicycle can, all by itself, be so stable?
Pathway to cell death redefined in landmark study
Sep 20, 2007 |
4.7 / 5 (24) |
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A new study led by investigators from the University of Pittsburgh School of Medicine demonstrates that the process of necrosis, long thought to be a chaotic, irreversible pathway to cell death, may actually be triggered ...
Researchers reveal genetic secrets of devastating human parasite
Biology /
Sep 20, 2007 |
4.5 / 5 (21) |
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An international team of researchers has revealed the genetic secrets of one of the world’s most debilitating human parasites, Brugia malayi (B. malayi), which the World Health Organization estimates has seriously incapacitated ...
Orphan stars found in long galaxy tail
Sep 20, 2007 |
4.5 / 5 (19) |
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Astronomers have found evidence that stars have been forming in a long tail of gas that extends well outside its parent galaxy. This discovery suggests that such "orphan" stars may be much more prevalent ...
NASA researchers find snowmelt in Antarctica creeping inland
Space & Earth / Earth Sciences
Sep 20, 2007 |
4.7 / 5 (18) |
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On the world's coldest continent of Antarctica, the landscape is so vast and varied that only satellites can fully capture the extent of changes in the snow melting across its valleys, mountains, glaciers ...
Ancient mechanism for coping with stresses also gives cancer a boost
Sep 20, 2007 |
4.7 / 5 (18) |
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An ancient mechanism for coping with environmental stresses, including heat and toxic exposures, also helps cancerous tumors survive, reveals a new report in the Sept. 21, 2007, issue of Cell, a publication of Cell Press. ...
Dealing with threatening space rocks
Space & Earth / Space Exploration
Sep 20, 2007 |
4.5 / 5 (14) |
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Every now and then a space rock hits the world's media – sometimes almost literally. Threatening asteroids that zoom past the Earth, fireballs in the sky seen by hundreds of people and mysterious craters which ...
Arctic sea ice minimum shatters all-time record low, report University of Colorado scientists
Sep 20, 2007 |
4.8 / 5 (12) |
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Scientists from the University of Colorado at Boulder's National Snow and Ice Data Center said today that the extent of Arctic sea ice appears to have reached its minimum for 2007 on Sept. 16, shattering all previous lows ...
