The 2010 eruption of the Icelandic volcano Eyjafjallajökull grounded thousands of air flights and spread ash over much of western Europe, yet it was puny compared to the eruption 200 years ago of Tambora, a volcano that ...
Earth Sciences
Mar 31, 2015
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The distinctive "fecal prints" of microbes potentially provide a record of how Earth and life have co-evolved over the past 3.5 billion years as the planet's temperature, oxygen levels, and greenhouse gases have changed. ...
Cell & Microbiology
Dec 24, 2014
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The Earth's ancient oceans held much lower concentrations of sulfate—a key biological nutrient—than previously recognized, according to research published this week in Science.
Earth Sciences
Nov 7, 2014
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Wriggle your toes in a marsh's mucky bottom sediment and you'll probably inhale a rotten egg smell, the distinctive odor of hydrogen sulfide gas. That's the biochemical signature of sulfur-using bacteria, one of Earth's most ...
Earth Sciences
Nov 6, 2014
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New results from the Chemistry & Camera (ChemCam) instrument on NASA's Curiosity rover provide further details about the ancient environment of Yellowknife Bay on Mars. Using data from ChemCam, as well as images from Mastcam ...
Space Exploration
Oct 29, 2014
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Tannins from the quebracho tree can control the production of compounds that cause manure odors, according to studies by U.S. Department of Agriculture (USDA) scientists. This research may someday give livestock farmers options ...
Environment
Jun 17, 2014
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(Phys.org) —The largest moon in our solar system, a companion to Jupiter named Ganymede, might have ice and oceans stacked up in several layers like a club sandwich, according to new NASA-funded research that models the ...
Space Exploration
May 1, 2014
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Water, salts and gases dissolved in the huge ocean that scientists believe could exist below Europa´s icy crust can rise to the surface generating the enigmatic geological formations associated to red-tinged materials that ...
Space Exploration
Mar 14, 2014
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Scientists recently isolated and characterized oxidized and reduced forms of the protein DsrC, an important step toward understanding DsrC's critical role in sulfate respiration. DsrC is known to interact closely with the ...
Biochemistry
Jan 8, 2014
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(Phys.org) —The discoloration of some pigments used in impressionist paintings has been observed since the 19th century. Belgian researchers have now investigated how the colors of chrome yellow pigments change on both ...
Analytical Chemistry
Oct 8, 2013
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