Taxonomy term

october 2016

New type of meteorite found in Sweden

Meteorites offer a glimpse into the workings and origins of our solar system. Now, a meteorite found in a Swedish quarry, reported in a new study in Nature Communications, is opening a whole new window: The find has been classified as a new type of meteorite, never before seen on Earth.

18 Oct 2016

Scientists get rare opportunity to monitor caldera collapse in real time

Many of the most catastrophic volcanic eruptions in history have something in common: caldera collapse — the formation of a large hole by the collapse of a volcano’s peak associated with the emptying of the magma chamber. But these events are rare. So, in August 2014, when Bárdarbunga Volcano in central Iceland erupted, it gave scientists the unique opportunity to study a caldera collapse in real time.

17 Oct 2016

Geologic Column: Proposing a new U.S. Holiday: Explorers' Day

October has two holidays that celebrate two individuals both heralded as the discoverers of the New World: Christopher Columbus and Leif Erikson. Perhaps it’s time for something new.

14 Oct 2016

Ice (Re)Cap: October 2016

From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, fascinating science is found in every nook and crevasse of Earth’s cryosphere, and new findings are announced often. Here are a few of the latest updates.

13 Oct 2016

Milky Way invisible for a third of humanity

Death Valley National Park is a remote place, and in its night sky countless stars, including many in our own Milky Way Galaxy, are visible. But on the park’s eastern horizon, a dome of light appears each night, blotting out stars in that part of the sky. The glow of city lights from Las Vegas creates this “light pollution,” which worldwide now hides the Milky Way from about one-third of humanity, according to a new study in Science Advances.

12 Oct 2016

Humans, megafauna coexisted in Patagonia before extinction

During the last ice age, giant mammals roamed the wide-open steppes of what is now Patagonia. Around the time that humans were making their way down through North America and into South America, the climate began warming and large species of giant sloths and saber-toothed cats soon disappeared. Now, researchers looking at mitochondrial DNA from some of these megafaunal species are shedding light on the timing of the extinction and whether encroaching humans or changing climate — or both — were to blame for their disappearance.

11 Oct 2016

Everything's bigger in Texas, including the Wink sinkholes

Residents of the neighboring West Texas towns of Wink (population 940) and Kermit (population 6,000) have had decades to get used to a pair of large sinkholes that opened a couple of kilometers apart between their towns, the first in 1980 and the second in 2002. But according to a new study, the ground around the two holes is subsiding and unstable, opening up the possibility that they could collapse into one giant sinkhole.

10 Oct 2016

Antarctic no place to hide during end-Cretaceous extinction

The end-Cretaceous extinction is famous for killing off the dinosaurs, but many other species perished as well. A new study in Nature Communications of marine fossils found in the Antarctic indicates that the extinction event was just as deadly for creatures in the polar regions.

07 Oct 2016

Comment: Did life start on a snowball?

Somewhere toward the end of the Hadean, life emerged on Earth. Conventional wisdom suggests the Hadean was a hothouse, but what if instead it were a global icehouse? Could life still have emerged?

06 Oct 2016

Water use soared as workers flocked to North Dakota's oilfields

Amid North Dakota’s oil boom, about 24,000 temporary oilfield workers moved to Williams County — in the state’s Bakken oil shale region — between 2010 and 2012, almost doubling the area’s population. In a new study, researchers found that those workers have been responsible for the region’s skyrocketing water use almost as much as hydraulic fracturing by the oil industry itself.

 
06 Oct 2016

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