Volcanoes May Have Sparked Life on Earth, Study Says
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Peptides are chains of amino acids. They form the proteins that are the basis of living cells. Scientists have had little success in demonstrating a plausible chemical reaction that could have formed peptides
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VANCOUVER, Wash. Oct. 7, 2004 - Geologist David Johnston wouldn&#39;t have died on Mount St. Helens today. New equipment developed since the 1980 eruption of the volcano has made it possible for volcanologists
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A NASA telescope recently discovered evidence that the most violent part of the process in forming an Earth-sized planet - the collisions between colossal chunks of rock - may last hundreds of millions of years instead of 10 million years, scientists said
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Evo-devo researchers are finding that development appears to have been one of the major forces shaping the history of life on earth.
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The boiling magma rumbling and rising within Mount St. Helens isn't the only thing scientists fear. When large volcanoes erupt they can unleash an awesome arsenal of natural weapons, devastating communities and landscapes even hundreds of miles from the blast.
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Star dust found deep beneath the Pacific Ocean has led German scientists to speculate that a supernova explosion 3 million years ago might possibly have helped bring about human evolution.
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New research suggests that the Âgreat dyingÂ 251 million years ago was followed by an explosion of complexity in marine life that has persisted ever since.
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While meteorites are often associated with the extinction of dinosaurs, new evidence suggests the impacts may actually engender new life. Commentary by Carl Zimmer.
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Sept. 29, 2004 - Mount St. Helens, a volcano that devastated swathes of the Northwest when it erupted 24 years ago, has rumbled back to life, raising fears of a fresh explosion, seismologists said Monday.
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Before life emerged on earth, either a primitive kind of metabolism or an RNA-like duplicating machinery must have set the stage â so experts believe.
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Photographs by a spacecraft orbiting Mars indicate that active volcanoes may still exist on the red planet, further eroding its image as a dead world and offering prime sites to prospect for signs of Martian life.
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Mars shows signs of geologically recent volcanic activity, and scientists find to their surprise that another volcanic blast may be in the Red Planet&#39;s future.
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New data showing overlap in patterns of water and methane in Mars' atmosphere may have implications for the idea that life exists there.
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NEW YORK: Photographs taken by a spacecraft orbiting Mars indicate that active volcanoes may still exist on the red planet, further eroding its image as a dead world and offering prime sites to prospect for signs of Martian life.
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Research released Thursday offers new evidence that global warming caused by massive and prolonged volcanic activity may have been the chief culprit in the biggest mass extinction in Earth's geologic history.
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The claim has the ring of a myth. But environmental scientists say it is real.
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Earth may be close to the warmest it   has been in the last million years, especially in the part of   the Pacific Ocean where potentially violent El Nino weather   patterns are born, climate scientists reported on Monday.