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Humanity May Hold Key For Next Earth Evolution
Human degradation of the
environment has the
potential to stall an
ongoing process of planetary
evolution, and even rewind
the evolutionary clock to
... > full story
Tracking Down Strange Seismic Waves
Seismic waves generated by
earthquakes pass through the
earth. Changes in their
direction or velocity
indicate variations in the
materials through which they
pass. Geophysicists have now
... > full story
Plate Tectonics Started Over 4 Billion Years Ago, Geochemists Report
A new picture of the early
Earth is emerging, including
the surprising finding that
plate tectonics on Earth may
have started more than four ... > full story
Clouds And Climate Change: CERES Flight Model Moves Toward Launch
NASA's Langley Research
Center's Clouds and the
Earth's Radiant Energy
System (CERES) instruments
have been observing clouds
... > full story
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Volcanic Eruption Signals Simulated In Lab For First Time
December 2, 2008 — For the first time, seismic signals that precede a volcanic eruption have been simulated and visualized in 3-D under controlled pressure conditions in a laboratory. The ability to conduct such ... > full story -
Carbon Dioxide Helped Ancient Earth Escape Deathly Deep Freeze
November 30, 2008 — The planet’s present day greenhouse scourge, carbon dioxide, may have played a vital role in helping ancient Earth to escape from complete glaciation, say ... > full story -
Record Set Simulating Seismic Wave Propagation Across The Earth
November 26, 2008 — Scientists have successfully completed record-setting, petascale-level simulations of the earth's inner structure, paving the way for seismologists to model seismic wave propagations at frequencies ... > full story -
Deep Heat Solution To 500-million Year Fossil Mystery
November 25, 2008 — Scientists have shed new light on a 500-million year old mystery. Some 500 million year-old fossils of the Burgess Shale in Canada, discovered over a century ago, still provide one of the most ... > full story -
Can China's Future Earthquakes Be Predicted?
November 24, 2008 — On May 12, 2008, at 2:28 p.m., China's Szechwan province changed forever. In the space of 90 seconds, an earthquake equivalent to 1,200 H-bombs pulverized the earth's crust for more than 280 ... > full story -
Glacial Erosion Changes Mountain Responses To Plate Tectonics
November 23, 2008 — Intense glacial erosion has not only carved the surface of the highest coastal mountain range on earth, the spectacular St. Elias range in Alaska, but has elicited a structural response from deep ... > full story -
Mineral Kingdom Has Co-evolved With Life, Scientists Find
November 14, 2008 — Evolution isn't just for living organisms. Scientists have found that the mineral kingdom co-evolved with life, and that up to two thirds of the more than 4,000 known types of minerals on Earth can ... > full story -
Sedimentary Records Link Himalayan Erosion Rates And Monsoon Intensity Through Time
November 12, 2008 — Throughout history, the changing fortunes of human societies in Asia have been linked to variations in the precipitation resulting from seasonal monsoons. Research suggests that variations in monsoon ... > full story -
Electronic Heat Trap Grips Deep Earth: Current Models Of Mantle Dynamics Challenged
November 12, 2008 — The key to understanding Earth's evolution, including our atmosphere and how volcanoes and earthquakes form, is to look into the lower mantle, a region some 400 to 1,800 miles below the surface. ... > full story -
Deep Sea Expedition Sets Sail
November 11, 2008 — Researchers are embarking upon an extreme adventure, plunging deep into the sea to study hydrothermal vents on the ocean floor. They'll share the experience with 20,000-plus school children through ... > full story
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