News tagged with geophysics
Missing piece inspires new look at Mars puzzle
(PhysOrg.com) -- Experiments prompted by a 2008 surprise from NASA's Phoenix Mars Lander suggest that soil examined by NASA's Viking Mars landers in 1976 may have contained carbon-based chemical building blocks ...
Space & Earth / Space Exploration
Sep 03, 2010 |
4.6 / 5 (18) |
4
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New scenery at Earth's core-mantle boundary found
(PhysOrg.com) -- Using a diamond-anvil cell to recreate the high pressures deep within the earth, researchers at the California Institute of Technology (Caltech) have found unusual properties in an iron-rich magnesium- and ...
Space & Earth / Earth Sciences
Sep 02, 2010 |
5 / 5 (4) |
4
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Dramatic climate change is unpredictable
The fear that global temperature can change very quickly and cause dramatic climate changes that may have a disastrous impact on many countries and populations is great around the world. But what causes climate ...
Space & Earth / Earth Sciences
Aug 30, 2010 |
3.7 / 5 (22) |
51
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Shrinking atmospheric layer linked to low levels of solar radiation
Large changes in the sun's energy output may drive unexpectedly dramatic fluctuations in Earth's outer atmosphere.
Space & Earth / Earth Sciences
Aug 26, 2010 |
4.3 / 5 (6) |
18
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Deep plumes of oil could cause dead zones in the Gulf
A new simulation of oil and methane leaked into the Gulf of Mexico suggests that deep hypoxic zones or "dead zones" could form near the source of the pollution. The research investigates five scenarios of oil and methane ...
Aug 19, 2010 |
2.5 / 5 (2) |
0
Hyperlocal Effects From A Changing Climate
Cities are made chiefly of concrete and asphalt, which soak up more sunlight during the day than soil and have a harder time radiating the heat away during the night. Add to that all the energy -- natural ...
Space & Earth / Earth Sciences
Aug 06, 2010 |
2.7 / 5 (11) |
10
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Discovery of Saturn's auroral heartbeat
(PhysOrg.com) -- An international team of scientists led by Dr Jonathan Nichols of the University of Leicester has discovered that Saturn’s aurora, an ethereal ultraviolet glow which illuminates Saturn’s upper ...
Aug 04, 2010 |
5 / 5 (2) |
2
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Cassini images rule out rings around Rhea
(PhysOrg.com) -- Something unknown is causing a strange, symmetrical structure in the charged-particle environment around Rhea, Saturn's second-largest moon. But contrary to 2008 reports, it's not a system ...
Space & Earth / Space Exploration
Jul 30, 2010 |
4.7 / 5 (7) |
1
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Spacequakes Rumble Near Earth (w/ Video)
Researchers using NASA's fleet of five THEMIS spacecraft have discovered a form of space weather that packs the punch of an earthquake and plays a key role in sparking bright Northern Lights. They call it ...
Space & Earth / Space Exploration
Jul 28, 2010 |
4.8 / 5 (21) |
0
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Converging weather patterns caused last winter's huge snows
The memory of last winter's blizzards may be fading in this summer's searing heat, but scientists studying them have detected a perfect storm of converging weather patterns that had little relation to climate ...
Space & Earth / Earth Sciences
Jul 26, 2010 |
4.7 / 5 (13) |
2
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Bursting a bubble? Accepted theory explaining frequent eruptions at Italy's volcano called into question
Understanding the processes that cause volcanic eruptions can help scientists predict how often and how violently a volcano will erupt. Although scientists have a general idea of how these processes work — ...
Space & Earth / Earth Sciences
Jul 21, 2010 |
4.8 / 5 (8) |
0
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First-of-its-kind map details the height of the globe's forests
Using satellite data, scientists have produced a first-of-its kind map that details the height of the world's forests. Although there are other local- and regional-scale forest canopy maps, the new map is ...
Jul 20, 2010 |
5 / 5 (4) |
0
Footloose Glaciers Crack Up: What Happens When Glaciers Float On Ocean Surface
(PhysOrg.com) -- Glaciers that lose their footing on the seafloor and begin floating behave very erratically, according to a new study led by a Scripps Institution of Oceanography, UC San Diego researcher. ...
Space & Earth / Earth Sciences
Jul 19, 2010 |
4.4 / 5 (7) |
1
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A Puzzling Collapse of Earth's Upper Atmosphere
NASA-funded researchers are monitoring a big event in our planet's atmosphere. High above Earth's surface where the atmosphere meets space, a rarefied layer of gas called "the thermosphere" recently collapsed ...
Space & Earth / Earth Sciences
Jul 15, 2010 |
4.4 / 5 (47) |
45
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Footloose glaciers crack up
Glaciers that lose their footing on the seafloor and begin floating behave very erratically, according to a new study led by a Scripps Institution of Oceanography, UC San Diego researcher.
Space & Earth / Earth Sciences
Jul 14, 2010 |
5 / 5 (5) |
0
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