(Phys.org) —On Saturday, an asteroid the size of one and a half football fields flew within 240,000 miles of Earth. If the space rock had hit land, it would have leveled an area the size of San Francisco Bay. If it had ...
Space Exploration
Mar 12, 2013
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For the past few million years the world's oceans have existed in a slightly alkaline state, with an average pH of 8.2. Now, with carbon emissions escalating, there is more CO₂ in the world's atmosphere. This dissolves ...
Earth Sciences
Jan 29, 2019
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More than 200 million years ago, a massive extinction decimated 76 percent of marine and terrestrial species, marking the end of the Triassic period and the onset of the Jurassic. This devastating event cleared the way for ...
Earth Sciences
Mar 22, 2013
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Rocks, rain and carbon dioxide help control Earth's climate over thousands of years—like a thermostat—through a process called weathering. A new study led by Penn State scientists may improve our understanding of how ...
Earth Sciences
Feb 5, 2023
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IIASA researchers and international colleagues explored the potential of using finely ground rock to help with the removal of CO2 from the atmosphere on the road to achieving net-zero emissions and keeping global warming ...
Earth Sciences
Jul 26, 2021
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A new discovery of hydrothermally altered carbonate-bearing rocks on Mars points toward habitable environments deep in the martian crust, a Planetary Science Institute researcher said.
Space Exploration
Oct 14, 2010
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Scientists from the Smithsonian and the University of Rhode Island have found unsuspected linkages between the oxidation state of iron in volcanic rocks and variations in the chemistry of the deep Earth. Not only do the trends ...
Earth Sciences
May 2, 2013
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Why has Earth's climate remained so stable over geological time? The answer just might rock you.
Earth Sciences
Jul 16, 2020
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Researchers at the The University of Western Australia have uncovered evidence of a new type of fossilization that may explain how some of Earth's oldest microfossils formed and might even help scientists detect evidence ...
Paleontology & Fossils
Oct 31, 2019
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36
(PhysOrg.com) -- The world's oceans could be littered with thousands of undiscovered 'lost cities' housing communities of creatures that thrive in some of the Earth's most extreme conditions, a new discovery suggests.
Earth Sciences
Jun 7, 2011
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