Supernova Explosion May Have Caused Mammoth Extinction
Sep 23, 2005 |
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A distant supernova that exploded 41,000 years ago may have led to the extinction of the mammoth, according to research that will be presented tomorrow (Sept. 24) by nuclear scientist Richard Firestone of ...
Voyager 1: Messages from the Edge
Sep 23, 2005 |
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NASA's Voyager 1 has passed into the border region at the edge of the solar system and now is sending back information about this never-before-explored area, say scientists at the University of Maryland.
Physicists Measure Tiny Force That Limits How Far Machines Can Shrink
Physics /
Sep 23, 2005 |
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University of Arizona physicists have directly measured how close speeding atoms can come to a surface before the atoms' wavelengths change. Theirs is a first, fundamental measurement that confirms the ide ...
AIDS vaccine trial exceeds expectations
Sep 23, 2005 |
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An experimental AIDS vaccine of Merck & Co. has exceeded expectations and led to a double enrollment in the trial to 3,000, researchers said.
Text messaging for businesses climbs
Sep 23, 2005 |
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Customer-service technicians at Kodak photo developing units glance at their mobile phones when they receive a text message from their dispatcher. They get reminders, directions and instructions for their next project, and ...
Displaced students to contine work online
Sep 23, 2005 |
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When Desiree Cook's family realized Hurricane Katrina was headed right for their home, they packed up their belongings and took a 14-hour drive west to Houston. Though the storm wrecked the University of New Orleans senior's ...
Nanowires detect molecular signs of cancer
Sep 23, 2005 |
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Harvard University researchers have found that molecular markers indicating the presence of cancer in the body are readily detected in blood scanned by special arrays of silicon nanowires -- even when these cancer markers constitute only one hundred-billionth ...
Mechanism regulating tooth shape formulation found
Sep 23, 2005 |
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One of the remaining challenges for evolutionary developmental studies of mammals, whose evolution is best known from their teeth, is how their tooth shape is altered during development.
New weather model predicts Rita
Sep 23, 2005 |
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An advanced research weather model run by the National Center for Atmospheric Research in Boulder, Colo., is watching Hurricane Rita.
The Living Worlds Hypothesis
Sep 23, 2005 |
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Saturn's moon Titan is enveloped in a thick orange haze, and the organic particles that make up that smog have been raining out of the atmosphere and down onto the surface for millennia. This rich chemical brew ...
NIST atomic fountain clock gets much better with time
Physics /
Sep 23, 2005 |
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The world's best clock, NIST-F1, has been improved over the past few years and now measures time and frequency more than twice as accurately as it did in 1999 when first used as a national standard, physicists ...
A unique marine symbiosis is studied
Sep 23, 2005 |
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A symbiosis of bacteria and a marine worm found by Monterey Bay, Calif., researchers is believed the only one solely using marine mammals for nutrition.
Natural gas costs could leave consumers cold this winter
Sep 23, 2005 |
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Energy prices are high and will likely stay that way, with the biggest winter sticker shock expected in the Midwest, according to a Purdue University agricultural economist.
Entry screening won't stop SARS, flu
Sep 23, 2005 |
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Screening air passengers as they arrive at British airports is unlikely to prevent importation of either SARS or influenza, researchers in London report.
Mars Doubles In Brightness
Sep 23, 2005 |
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Ready to be amazed? Step outside tonight around midnight and look east. About halfway up the sky you'll see the planet Mars. It looks like an intense red star (as photographed here on Sep 8 by Stan Richard ...
