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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Vast seas of hydrocarbons and masses of water below kilometres of ice are among the unusual environments on distant planets that are providing insights into the potential fate of our own oceans.
Earth Sciences
Oct 23, 2014
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Tasmanian researchers have revealed ancient conditions that almost ended life on Earth, using a new technique they developed to hunt for mineral deposits.
Earth Sciences
Feb 18, 2014
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Did a vast ocean once cover Mars' northern plains? The idea has been hotly debated among scientists for the past 20 years, ever since Viking Orbiter images revealed possible ancient shorelines near the pole. Later findings ...
Space Exploration
Feb 17, 2014
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A new study is examining methane and other components in groundwater wells, in advance of drilling for shale gas that's expected over the next several years in an Ohio region. Amy Townsend-Small, a University of Cincinnati ...
Environment
Sep 25, 2013
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(Phys.org) —Researchers at the California Institute of Technology (Caltech) have discovered evidence for an ancient delta on Mars where a river might once have emptied into a vast ocean.
Space Exploration
Jul 17, 2013
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The impact of industrial fishing on coastal ecosystems has been studied for many years. But how it affects food webs in the open ocean―a vast region that covers almost half of the Earth's surface―has not been very clear. ...
Ecology
May 13, 2013
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(Phys.org) —Researchers from the University of Tübingen have been able to show for the first time how microorganisms contributed to the formation of the world's biggest iron ore deposits. The biggest known deposits – ...
Earth Sciences
Apr 25, 2013
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(Phys.org) —Geology professor Dan Schulze calls this singular gem from the remote Guaniamo region of Venezuela the "Picasso" diamond. The blue luminescent, high-resolution image of a diamond formed over a billion years ...
Earth Sciences
Apr 18, 2013
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A new model suggests that inhospitable hydrodgen-sulphide rich waters could have delayed the spread of complex life forms in ancient oceans.
Earth Sciences
Feb 28, 2013
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