Scientists sequence genome of kind of organism central to biosphere's carbon cycle

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The diatom species Thalassiosira pseudonana
The first ever genomic map of a diatom, part of a family of microscopic ocean algae that are among the Earth's most important inhabitants, has yielded surprising insights about the way they may be using nitrogen, fats and silica in order to thrive.
Diatoms, most of which are far too tiny to see without magnification, are nevertheless thought to absorb carbon dioxide, a major greenhouse gas, in amounts comparable to all the world's tropical rain forests combined.
"These organisms are incredibly important in the global carbon cycle," says Virginia Armbrust, a University of Washington associate professor of oceanography and lead author of a research article in the Oct. 1 issue of Science.


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All News summaries for October 01, 2004

Low voltage current to stimulate growth of coral off South Florida coast

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The thunderclaps and lightning flashes of Victor Frankenstein's laboratory seem far removed from the sunshine, hotels and snorkelers of the South Florida coast. But the town of Lauderdale-by-the-Sea is pursuing the dream ...

Future of flagship Mars mission up in the air

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(AP) -- Will NASA's flagship mission to Mars fly next year? The space agency could decide as early as Friday whether to cancel, delay or proceed with plans to launch a nuclear-powered, SUV-size rover to the red planet.

As Colorado Heats Up, Water Supply Expected to Be at Risk, Says New Study

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(PhysOrg.com) -- Water resource managers may have to prepare for a warmer Colorado and a shift in the timing of runoff in most of the state's river basins, according to a new assessment of Colorado climate ...

CoRoT discovery challenges the definition of extra-solar planets

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(PhysOrg.com) -- The CoRoT satellite has discovered a planet-sized object so exotic that astronomers are unsure whether to call it a planet. The object, named CoRoT-Exo-3b, is approximately the same size as ...

MESSENGER Returns Images from Oct. 6 Mercury Fly-By

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MESSENGER is the first mission sent to orbit the planet closest to the sun. On Oct. 6, 2008, at roughly 4:40 a.m. ET, MESSENGER flew by Mercury for the second time this year. During the encounter, the probe ...