News tagged with frozen gases
Swift satellite comet tally highlighted
A montage of comet images made using NASA's Swift spacecraft illustrates just how different three comets can be. The images, including a never-released image of Comet 8P/Tuttle, were shown during a webcast ...
Apr 24, 2009 |
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Swift’s Comet Tally
A montage of comet images made using NASA’s Swift spacecraft illustrates just how different three comets can be. The images, including a never-released image of Comet 8P/Tuttle, were shown today during a live, 24-hour video ...
Space & Earth / Space Exploration
Apr 06, 2009 |
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Search results for frozen gases
Thawing tundra a new climate threat
(PhysOrg.com) -- A significant source of greenhouse gases has started leaking into the Earth's atmosphere from an unlikely place. Above the Arctic Circle, land frozen for tens of thousands of years has begun ...
Jan 20, 2012 |
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Loss of planetary tilt could doom alien life
Although winter now grips much of the Northern Hemisphere, those who dislike the cold weather can rest assured that warmer months shall return. This familiar pattern of spring, summer, fall and winter does ...
Jan 12, 2012 |
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Could Siberian volcanism have caused the Earth's largest extinction event?
Around 250 million years ago, at the end of the Permian geologic period, there was a mass extinction so severe that it remains the most traumatic known species die-off in Earth's history. Although the cause ...
Space & Earth / Earth Sciences
Jan 09, 2012 |
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Are gas-formed gullies the norm on Mars?
In June 2000, Martian imaging scientists made a striking discovery — data from NASA’s Mars Global Surveyor spacecraft found gullies on the red planet. Gullies on Earth form when water runs down steep ...
Space & Earth / Space Exploration
Dec 06, 2011 |
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Setting the stage for life: Scientists make key discovery about the atmosphere of early Earth
Scientists in the New York Center for Astrobiology at Rensselaer Polytechnic Institute have used the oldest minerals on Earth to reconstruct the atmospheric conditions present on Earth very soon after its birth. The findings, ...
Space & Earth / Earth Sciences
Nov 30, 2011 |
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Abrupt permafrost thaw increases climate threat
As the Arctic warms, greenhouse gases will be released from thawing permafrost faster and at significantly higher levels than previous estimates, according to survey results from 41 international scientists ...
Space & Earth / Earth Sciences
Nov 30, 2011 |
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Carbon cycling was much smaller during last ice age than in today's climate: study
Atmospheric carbon dioxide (CO2) is one of the most important greenhouse gases and the increase of its abundance in the atmosphere by fossil fuel burning is the main cause of future global warming. In past ...
Space & Earth / Earth Sciences
Nov 20, 2011 |
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How Arctic microbes respond to a warming world
From the North Pole to the Arctic Ocean, the frozen soils within this region keep an estimated 1,672 billion metric tons of carbon out of the Earth's atmosphere. This sequestered carbon is more than 250 times ...
Nov 06, 2011 |
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A microscopic view on quantum fluctuations
(PhysOrg.com) -- Scientists at the Max Planck Institute of Quantum Optics achieve direct imaging of quantum fluctuations at absolute zero temperature.
Oct 14, 2011 |
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Mission to mysterious Uranus
Scientists want to send an orbiter and probe to the ice giant planet Uranus, but do the resources exist to support such an ambitious project?
Space & Earth / Space Exploration
Oct 12, 2011 |
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List of search results for frozen gases
