We and all other animals wouldn't be here today if our planet didn't have a lot of oxygen in its atmosphere and oceans. But how crucial were high oxygen levels to the transition from simple, single-celled life forms to the ...
Earth Sciences
Jan 3, 2018
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663
Oxygen has provided a breath of fresh air to the study of the Earth's evolution some 400-plus million years ago.
Earth Sciences
Nov 20, 2017
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467
For researchers pursuing the primordial history of oxygen in Earth's atmosphere, a new study might sour some "Eureka!" moments. A contemporary tool used to trace oxygen by examining ancient rock strata can produce false positives, ...
Earth Sciences
Nov 17, 2017
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105
Researchers at MIT and several other institutions have developed a method for making photonic devices—similar to electronic devices but based on light rather than electricity—that can bend and stretch without damage. ...
Optics & Photonics
Nov 8, 2017
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352
(Phys.org)—A small team of researchers with Princeton University has found evidence that suggests that the amount of oxygen in the Earth's atmosphere has dropped by 0.7 percent over the past 800,000 years. In their paper ...
A couple of times in four billion years, evolution has slowed to a crawl. And an eon or so has passed before more complex life forms, such as simple animals, could arise.
Earth Sciences
Jul 25, 2016
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703
As climatologists closely monitor the impact of human activity on the world's oceans, researchers at the Georgia Institute of Technology have found yet another worrying trend impacting the health of the Pacific Ocean.
Earth Sciences
May 16, 2016
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689
Variations in the amount of oxygen in Earth's atmosphere significantly altered global climate throughout the planet's history. Efforts to reconstruct past climates must include this previously overlooked factor, a new University ...
Earth Sciences
Jun 11, 2015
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1311
A pair of researchers, one with James Cook University the other the Australian Institute of Marine Science has shown that the common myth that pufferfish don't breathe when puffed up, is completely wrong. In their paper published ...
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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