News tagged with geophysical sciences
TWINS/IBEX spacecraft observed impact of powerful solar storm from inside and outside Earth's magnetosphere
(PhysOrg.com) -- For the first time, instrumentation aboard two NASA missions operating from complementary vantage points watched as a powerful solar storm spewed a two million-mile-per-hour stream of charged ...
Space & Earth / Space Exploration
Mar 28, 2012 |
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Satellite imagery detects thermal 'uplift' signal of underground nuclear tests
A new analysis of satellite data from the late 1990s documents for the first time the "uplift" of ground above a site of underground nuclear testing, providing researchers a potential new tool for analyzing the strength of ...
Space & Earth / Earth Sciences
Jan 10, 2012 |
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Cassini to make a double play
(PhysOrg.com) -- In an action-packed day and a half, NASA's Cassini spacecraft will be making its closest swoop over the surface of Saturn's moon Dione and scrutinizing the atmosphere of Titan, Saturn's largest ...
Space & Earth / Space Exploration
Dec 12, 2011 |
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Lightning sprites are out-of-this-world
Only a few decades ago, scientists discovered the existence of "sprites" 30 to 55 miles above the surface of the Earth. They're offshoots of electric discharges caused by lightning storms, and a valuable window ...
Space & Earth / Space Exploration
Nov 21, 2011 |
4.8 / 5 (13) |
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UChicago launches search for distant worlds
(PhysOrg.com) -- Since 1995, scientists have discovered approximately 600 planets around other stars, including 50 planets last month alone, and one that orbits two stars, like Tatooine in Star Wars. Detection of the first ...
Oct 14, 2011 |
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Changes in rainfall patterns are projected for next 30 years
Manoa have projected an increased frequency of heavy rainfall events but a decrease in rainfall intensity during the next 30 years (2011-2040) for the southern shoreline of Oahu, according to a recent study ...
Space & Earth / Earth Sciences
Oct 11, 2011 |
4.6 / 5 (5) |
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Model provides successful seasonal forecast for the fate of Arctic sea ice
Relatively accurate predictions for the extent of Arctic sea ice in a given summer can be made by assessing conditions the previous autumn, but forecasting conditions more than five years into the future depend on understanding ...
Space & Earth / Earth Sciences
Sep 22, 2011 |
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Can scientists look at next year's climate?
(PhysOrg.com) -- Is it possible to make valid climate predictions that go beyond weeks, months, even a year? UCLA atmospheric scientists report they have now made long-term climate forecasts that are among ...
Space & Earth / Earth Sciences
Sep 12, 2011 |
4.6 / 5 (9) |
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The geophysicist's guide to striking it rich
Prospecting -- the search for valuable reserves such as gold, diamond and natural gas -- isn't just a matter of luck. It's about knowing where to look. Now researchers at Tel Aviv University have modernized the hit-or-miss ...
Space & Earth / Earth Sciences
Sep 01, 2011 |
5 / 5 (1) |
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Model shows polar ice caps can recover from warmer climate-induced melting
A growing body of recent research indicates that, in Earth's warming climate, there is no "tipping point," or threshold warm temperature, beyond which polar sea ice cannot recover if temperatures come back down. New University ...
Space & Earth / Earth Sciences
Aug 17, 2011 |
4.6 / 5 (7) |
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3Q: The next Mars rover's destination
When the next-generation Mars rover, dubbed Curiosity, touches down on martian soil next summer, its cameras will likely capture a scene similar to what the first explorers of the Grand Canyon witnessed: towe ...
Space & Earth / Space Exploration
Jul 25, 2011 |
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Hawaiian hotspot variability attributed to small-scale convection
(PhysOrg.com) -- Small scale convection at the base of the Pacific plate has been simulated in a model of mantle plume dynamics, enabling reasearchers to explain the complex set of observations at the Hawaiian ...
Space & Earth / Earth Sciences
Jun 29, 2011 |
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Cold case: Siberian hot springs reveal ancient ecology (w/ video)
(PhysOrg.com) -- Exotic bacteria that do not rely on oxygen may have played an important role in determining the composition of Earth's early atmosphere, according to a theory that UChicago researcher Albert ...
Space & Earth / Earth Sciences
Apr 26, 2011 |
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Pakistan floods last summer could have been predicted: research
Five days before intense monsoonal deluges unleashed vast floods across Pakistan last July, computer models at a European weather-forecasting center were giving clear indications that the downpours were imminent. Now, a new ...
Space & Earth / Earth Sciences
Jan 31, 2011 |
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More hurricanes in greener seas? Ocean color linked to formation, movement of tropical cyclones
More hurricanes may form in greener waters, where sunlight tends to be absorbed at shallower depths, than in clear seas, according to new research that draws a link between ocean color and the formation and ...
Space & Earth / Earth Sciences
Sep 08, 2010 |
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