A new sandwich-structured composite has been developed from the surface layers of polyhydroxyalkanoate (PHA) and the interlayer of polylactic acid and cellulose microfibers. The biodegradable cellulose microfibers can be ...
An international team of researchers has used computer simulations to show that it was likely a combination of climate change and human hunting that led to the extinction of the woolly mammoth. They have written a paper describing ...
An international team led by researchers at the Centre for Palaeogenetics in Stockholm has sequenced DNA recovered from mammoth remains that are up to 1.2 million years old. The analyses show that the Columbian mammoth that ...
Evolution
Feb 17, 2021
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277
Denver is known for its relatively mild climate and its four distinct seasons. It's also known for its temperature fluctuations over the course of a day or even hours. But what does that mean for the city's residents—and ...
Earth Sciences
Aug 17, 2020
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135
A large number of the valley networks scarring Mars's surface were carved by water melting beneath glacial ice, not by free-flowing rivers as previously thought, according to new UBC research published today in Nature Geoscience. ...
Space Exploration
Aug 3, 2020
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2536
An international team of scientists and historians has found evidence connecting an unexplained period of extreme cold in ancient Rome with an unlikely source: a massive eruption of Alaska's Okmok volcano, located on the ...
Earth Sciences
Jun 22, 2020
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924
The first appearance of bright green leaves heralds the start of spring, nudging insects, birds and other animals into a whirlwind of action. But a new study shows that urbanization shifts this seasonal cue in nuanced ways, ...
Ecology
Nov 11, 2019
0
105
New research published in Nature Astronomy seeks to understand how surface clay was formed on Mars despite its cold climate.
Space Exploration
Feb 6, 2018
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212
(Phys.org) —A team of researchers from the University of Alberta led by, Catherine La Farge, has found that mosses and liverworts covered by ice over 400 years ago and now exposed due to glacial melting, are able to start ...
(Phys.org) —A research team made up of members from France and the U.K. has discovered that when in cold temperatures, the outer feathers of the emperor penguin are actually colder than the surrounding air. As the team ...
