(PhysOrg.com) -- The bombardment of Earth nearly 4 billion years ago by asteroids as large as Kansas would not have had the firepower to extinguish potential early life on the planet and may even have given it a boost, says ...
Earth Sciences
May 20, 2009
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The 2007 Solomon Island earthquake may point to previously unknown increased earthquake and tsunami risks because of the unusual tectonic plate geography and the sudden change in direction of the earthquake, according to ...
Earth Sciences
Apr 9, 2009
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(PhysOrg.com) -- In the last decade, scientists have recorded regular episodes of tectonic plates slowly, quietly slipping past each other in western Washington and British Columbia over periods of two weeks or more, releasing ...
Earth Sciences
Jan 29, 2009
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Asteroids are hunks of rock that orbit in the outer reaches of space, and scientists have generally assumed that their small size limited the types of rock that could form in their crusts. But two newly discovered meteorites ...
Earth Sciences
Jan 7, 2009
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In Earth science, small details can help explain massive events. Rita Parai, an assistant professor of Earth, environmental and planetary sciences in Arts & Sciences at Washington University in St. Louis, uses precision equipment ...
Earth Sciences
Apr 4, 2024
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Scientists use tiny minerals called zircons as geologic timekeepers. Often no bigger than a grain of sand, these crystals record chemical signatures of the geological environment where they formed. In a new study led by scientists ...
Earth Sciences
Apr 3, 2024
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Yale researchers are delving deep beneath the Himalayas to investigate dynamic geological processes near the boundary of Earth's core and mantle.
Earth Sciences
Mar 27, 2024
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Sometimes planetary physics is like being in a snowball fight. Most people, if handed an already-formed snowball, can use their experience and the feel of the ball to guess what kind of snow it is composed of: packable and ...
Planetary Sciences
Mar 20, 2024
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Temperature and shear stress are two influential variables that affect faulting and seismicity in subduction zones, where tectonic plates converge. Yet because earthquakes originate tens of kilometers below Earth's surface ...
Earth Sciences
Feb 22, 2024
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Einstein's inexhaustible field equations just keep on predicting weird stellar objects, and the latest one is a doozy—so strap on your helmet, inside of which is another helmet, encasing still yet another helmet. This headgear ...
