Geoengineering -- deliberate manipulation of the Earth's climate to slow or reverse global warming -- has gained a foothold in the climate change discussion. But before effective action can be taken, the Earth's natural biogeochemical ...
Earth Sciences
Feb 16, 2010
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Volcanic rock samples collected during NASA's Apollo missions bear the isotopic signature of key events in the early evolution of the Moon, a new analysis found. Those events include the formation of the Moon's iron core, ...
Space Exploration
Feb 24, 2021
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147
Michigan State researchers have helped peer inside a nova—a type of astrophysical nuclear explosion—without leaving Earth.
General Physics
May 18, 2022
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Scientists have long believed that lava erupted from certain oceanic volcanoes contains materials from the early Earth's crust. But decisive evidence for this phenomenon has proven elusive. New research from a team including ...
Earth Sciences
Apr 24, 2013
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Oxygen in the atmosphere and ocean rose dramatically about 600 million years ago, coinciding with the first proliferation of animal life. Since then, numerous short lived biotic events—typically marked by significant climatic ...
Earth Sciences
Oct 28, 2013
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Iron and manganese compounds, in addition to sulfate, may play an important role in converting methane to carbon dioxide and eventually carbonates in the Earth's oceans, according to a team of researchers looking at anaerobic ...
Earth Sciences
Jul 9, 2009
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The concept of deadly mass extinctions wreaking destruction upon Earth's ecosystems millions of years ago is something that has fascinated the public and scientists alike for decades.
An international team of scientists, including geochemists from the University of California, Riverside, has uncovered new evidence linking extreme climate change, oxygen rise, and early animal evolution.
Earth Sciences
Sep 26, 2012
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Despite bearing witness to its own increase in Earth's atmosphere by around 2.5 to 2.3 billion years ago, oxygen has had relatively little to say about its own early history until now. A recent EU-funded study provides a ...
Earth Sciences
Nov 1, 2019
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A new study has revealed details about the composition of Earth's atmosphere during the Archean eon, which lasted from around 4 billion years ago to 2.4 billion years ago.
Earth Sciences
Sep 3, 2014
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