Researchers reassess theories on formation of Earth's atmosphere

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Geochemists at Rensselaer Polytechnic Institute are challenging commonly held ideas about how gases are expelled from the Earth. Their theory, which is described in the Sept. 20 issue of the journal Nature, could change the way scientists view the formation of Earth’s atmosphere and those of our distant neighbors, Mars and Venus. Their data throw into doubt the timing and mechanism of atmospheric formation on terrestrial plants.


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All News summaries for September 19, 2007

Giant Cyclones at Saturn's Poles Create a Swirl of Mystery

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(PhysOrg.com) -- New images from NASA's Cassini spacecraft reveal a giant cyclone at Saturn's north pole, and show that a similarly monstrous cyclone churning at Saturn's south pole is powered by Earth-like ...

Martian weather satellite's first report

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(PhysOrg.com) -- Scientists now have a ‘Martian weather satellite’ to observe the weather on Mars in the same way as they monitor Earth’s weather. Its first ‘weather report’ has been given by a team including ...

New Crew Blasts Off for International Space Station

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(PhysOrg.com) -- A new crew that will live and work aboard the International Space Station rocketed into orbit early Sunday aboard a Soyuz spacecraft. U.S. astronaut E. Michael Fincke, Russian cosmonaut Yury ...

Faint gamma-ray bursts do actually exist

3 hours ago | User rating: not rated yet
(PhysOrg.com) -- Gamma-ray bursts, powerful glares of high-energy that wash through the Universe once every day or so are, for a brief time, the brightest objects in the gamma-ray sky. ESA’s Integral gamma-ray ...

First evidence that a common pollutant may reduce iodine levels in breast milk

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Researchers in Texas are reporting the first evidence from human studies that perchlorate, a common pollutant increasingly found in food and water, may interfere with an infant's availability of iodine in breast milk. Iodine ...
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