(PhysOrg.com) -- Nuclear fission, or the splitting of a heavy nucleus, usually results in symmetrical fragments of the same mass. Physicists attribute the few known examples of fission that is asymmetric to the formation ...
The impact of an asteroid or comet is acknowledged as the principal cause of the mass extinction that killed off most dinosaurs and about three-quarters of the planet's plant and animal species 66 million years ago.
Earth Sciences
Dec 16, 2019
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Mercury concentrations in Hawaiian yellowfin tuna are increasing at a rate of 3.8 percent or more per year, according to a new University of Michigan-led study that suggests rising atmospheric levels of the toxin are to blame.
Environment
Feb 2, 2015
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379
Marine fog brings more than cooler temperatures to coastal areas. Researchers at UC Santa Cruz have discovered elevated levels of mercury in mountain lions, the latest indication that the neurotoxin is being carried in fog, ...
Environment
Nov 26, 2019
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Researchers in Canada are reporting for the first time that high mercury levels in certain Arctic seals appear to be linked to vanishing sea ice caused by global warming. Their study, a new insight into the impact of climate ...
Ecology
Apr 29, 2009
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0
Dartmouth scientists and their colleagues have found that periphyton—a community of algae, bacteria and other natural material living on submerged surfaces - is helping to transform mercury pollution from a Superfund site ...
Environment
Mar 13, 2015
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37
As fish-eating predators at the top of the marine food chain, elephant seals accumulate high concentrations of mercury in their bodies. A new study by scientists at UC Santa Cruz shows that elephant seals shed significant ...
Environment
Sep 7, 2015
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714
Little is known about the Royal Naval Hospital's cemetery in Antigua, and with little but the bones themselves to go on, researchers turn to synchrotron imaging to uncover the histories of the men buried there.
Archaeology
May 8, 2015
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50
I've never seen a report of mercury poisoning in a cat fed tuna-based commercial cat food. We also lack data about how much mercury is actually in tuna-based cat foods, as well as statistics about mercury levels in cats that ...
Ecology
Jan 28, 2014
1
0
European and Japanese scientists Thursday proudly unveiled the BepiColombo spacecraft ahead of its seven-year journey to Mercury, to explore one of the Solar System's most enigmatic planets.
Space Exploration
Jul 6, 2017
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60
