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30 August 2017

Computer earthquake prediction in lab shows promise

By listening to the acoustic signal emitted by a laboratory-created earthquake, a computer science approach using machine learning can predict the time remaining before the fault fails. Not only does the work have potential significance to earthquake forecasting, but the approach is far-reaching, applicable to potentially all failure scenarios, including avalanches and other events.

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Moon’s tidal stress likely responsible for causing deep moonquakes, new study confirms

The same gravitational force responsible for creating tides on Earth could be causing deep quakes on the moon, a new study confirms.

A new analysis of data gathered by the Apollo missions confirms that tidal stress – the gravitational pull of the moon on the Earth and of the Earth on the moon – is responsible for causing deep moonquakes, the lunar equivalent of earthquakes.

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29 August 2017

Unprecedented levels of nitrogen could pose danger to Earth’s environment

Humankind’s contribution to the amount of nitrogen available to plants on land is now five times higher than it was 60 years ago, mainly due to increases in the synthetic production of fertilizer and nitrogen-producing crops, according to a new study. This increase in nitrogen parallels the exponential growth of atmospheric carbon, the main culprit behind climate change, and could pose as much of a danger to Earth’s environment, according to the study’s authors.

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28 August 2017

Biodegradable microbeads may clean sunblock chemical from seawater

By Madeleine Jepsen Beach-goers around the world who slather on sunblock before an ocean swim can unwittingly contribute to coral-reef bleaching. Oxybenzone, a chemical in many types of sunblock and some hair products, can cause coral bleaching and death by damaging the coral’s genetic material, according to researchers. A team of scientists has proposed a new way to remove oxybenzone from the ocean by using tiny, absorbent beads to soak …

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23 August 2017

Elevated zinc and germanium levels bolster evidence for habitable environments on Mars

New data gathered by the Mars Curiosity rover indicates a potential history of hydrothermal activity at Gale Crater on the red planet, broadening the variety of habitable conditions once present there, scientists report in a new study. Researchers found concentrations of the elements zinc and germanium to be 10 to 100 times greater in sedimentary rocks in Gale Crater compared to the typical Martian crust.

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Researchers investigate the lighter side of Earth’s inner core

Researchers report in a new study that a carbon compound called iron carbide, combined with small amounts of silicon impurities, may be an important component of the inner core. The researchers performed computer simulations to model how an iron and nickel core containing either iron carbide, or iron carbide with some silicon, compares to the density and other known characteristics of the inner core.

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14 August 2017

New study details ocean’s role in fourth-largest mass extinction

Extremely low oxygen levels in Earth’s oceans could be responsible for extending the effects of a mass extinction that wiped out millions of species on Earth around 200 million years ago, according to a new study.

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11 August 2017

“Heartbeats” of an underwater volcano’s eruption imaged by ultrasounds (plus VIDEO)

Using acoustic footage of a volcanic eruption and images taken by a remotely operated vehicle (ROV), scientists have documented an underwater volcano’s eruption off the coast of El Hierro, the smallest of the Canary Islands.

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9 August 2017

Rapidly rising seas: Scientists discover cause of Atlantic coastline’s sea level rise hot spots

Sea level rise hot spots — bursts of accelerated sea rise that last three to five years — happen along the U.S. East Coast thanks to a one-two punch from naturally occurring climate variations, a new study shows.

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8 August 2017

Tiny ocean waves could make large ice shelves crumble (plus VIDEO)

Small ocean waves could play a bigger role in breaking up ice shelves than tsunamis or other large waves, a new study suggests. A new study examining vibrations in Antarctica’s Ross Ice Shelf finds small waves continuously impacting the ice shelf may create enough strain to extend existing cracks in the ice and potentially create new ones. An ocean wave of 1 centimeter (0.5 inches) in height can cause vibrations that repeatedly move the ice more than 20 centimeters (8 inches).

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