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Diamonds May Be Life's Birthstone
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| Topic: Geology |
09/25/08 |
| Summary: Researchers have come up with a new model in which the first molecules of life formed on diamonds. |
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Lukewarm Supervolcano
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| Topic: Geology |
09/03/08 |
| Summary: Yellowstone is known for its hot springs and geysers, and the unique forms of life that inhabit them. Scientists are now learning more about the mysterious 'supervolcano' that powers these environments, and whether or not the giant could erupt again. |
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Complex Volcanoes
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| Topic: Geology |
07/15/08 |
| Summary: For the first time, scientists have mapped an elaborate maze of magma chambers beneath the volcanoes of Iceland. The unique view into a complex subterranean world could provide important information about earthquakes and volcanic eruptions. |
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Revising Earth's History
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| Topic: Geology |
07/08/08 |
| Summary: Geologists have found that major basins in India are 500 million years older than previously thought. The study may lend weight to idea that complex life originated earlier in Earth's history. |
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Lava Holds Clues to Planet Formation
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| Topic: Geology |
06/27/08 |
| Summary: An analysis of lava samples from Hawaii has given scientists a new tool for reconstructing planetary origins. The study will help us understand how planets form, and may help in the search for terrestrial planets beyond our solar system. |
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Early Acid Rain
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| Topic: Geology |
06/25/08 |
| Summary: A new study of ancient minerals shows that the earliest continents on Earth may have been scoured and destroyed by the planet's harsh climate. The study has also demonstrated that the Earth may have been habitable as early as 4.3 billion years ago. |
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Deep Hydrogen
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| Topic: Geology |
06/16/08 |
| Summary: Molecular hydrogen provides energy for many bacteria, in hot springs at Yellowstone and in rocks several kilometers beneath the surface. How did molecular hydrogen get inside these deep rocks, and what does this tell us about the origin of life on Earth? |
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Tiny Pieces of Time
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| Topic: Geology |
03/06/08 |
| Summary: Three-billion-year-old microcrystals are teaching scientists about planetary evolution and the processes that formed the continents of Earth. The crystals are incredibly resistant to change, and contain geological 'records' of their movements through and around the planet. |
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Calcium Carbonate Fingerprints
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| Topic: Geology |
01/24/08 |
| Summary: Researchers studying microbes in hot springs have made a surprising discovery about the geological record of life and the environment of Earth. The discovery may even affect how scientists search for evidence of life on other planets. |
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A History of Starts and Stops
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| Topic: Geology |
01/10/08 |
| Summary: Scientists have found that plate tectonics on Earth may have ground to a halt in our planet's past - and may do so again. Plate tectonics are responsible for creating geologic features like mountains and ocean basins, and play an important role in maintaining Earth's climate. |
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