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Here is your customized Phys.org Newsletter for week 50:
Ancient creature discovered in the depths of the Arctic OceanIn the depths of the Arctic Ocean, buried deep in the sediment, an ancient creature waited for over a million years to be discovered. Paul Valentich-Scott, from the Santa Barbara Museum of Natural History (California), and three scientists from the United States Geological Survey (USGS, Menlo Park, California), Charles L. Powell, Brian D. Edwards, and Thomas D. Lorenson were up to the challenge. Each with different expertise, they were able to collect, analyze, and identify a new genus and new species of bivalve mollusk. | |
A universe of 10 dimensionsWhen someone mentions "different dimensions," we tend to think of things like parallel universes – alternate realities that exist parallel to our own, but where things work or happened differently. However, the reality of dimensions and how they play a role in the ordering of our Universe is really quite different from this popular characterization. | |
Study supports the theory that 'men are idiots'The theory that men are idiots and often do stupid things is backed up by evidence in the Christmas issue of The BMJ. The findings are based on an analyses of sex differences in idiotic behaviour. | |
Scientists re-create what may be life's first sparkScientists in a lab used a powerful laser to re-create what might have been the original spark of life on Earth. | |
Mystery of where Earth's water came from deepens: Comet water is differentThe mystery of where Earth's water came from got murkier Wednesday when some astronomers essentially eliminated one of the chief suspects: comets. | |
Researchers detect possible signal from dark matterCould there finally be tangible evidence for the existence of dark matter in the Universe? After sifting through reams of X-ray data, scientists in EPFL's Laboratory of Particle Physics and Cosmology (LPPC) and Leiden University believe they could have identified the signal of a particle of dark matter. This substance, which up to now has been purely hypothetical, is run by none of the standard models of physics other than through the gravitational force. | |
World record for compact 'tabletop' particle acceleratorUsing one of the most powerful lasers in the world, researchers have accelerated subatomic particles to the highest energies ever recorded from a compact accelerator. | |
Study finds early warning signals of abrupt climate changeA new study by researchers at the University of Exeter has found early warning signals of a reorganisation of the Atlantic oceans' circulation which could have a profound impact on the global climate system. | |
Researchers use real data rather than theory to measure the cosmosFor the first time researchers have measured large distances in the Universe using data, rather than calculations related to general relativity. | |
Study offers explanation for Titan dune puzzleTitan, Saturn's largest moon, is a peculiar place. Unlike any other moon, it has a dense atmosphere. It has rivers and lakes made up of components of natural gas, such as ethane and methane. It also has windswept dunes that are hundreds of yards high, more than a mile wide and hundreds of miles long—despite data suggesting the body to have only light breezes. | |
Physicists explain puzzling particle collisionsAn anomaly spotted at the Large Hadron Collider has prompted scientists to reconsider a mathematical description of the underlying physics. By considering two forces that are distinct in everyday life but unified under extreme conditions like those within the collider and just after the birth of the universe, they have simplified one description of the interactions of elementary particles. Their new version makes specific predictions about events that future experiments at the LHC and other colliders should observe and could help to reveal "new physics," particles or processes that have yet to be discovered. | |
Researchers learn more about the possible role of gamma ray bursts on life extinction in the universe(Phys.org)—A pair of astrophysicists studying gamma ray bursts has found that such events might play a much larger role in the existence of life on Earth and other planets than has been thought. In their paper published in the journal Physical Review Letters, Tsvi Piran with the Hebrew University in Israel and Raul Jimenez from the University of Barcelona in Spain, suggest that gamma ray bursts might be responsible for past extinctions on Earth, and for limiting the possibility of life on planets near the center of galaxies. | |
Before an asteroid wiped out the dinosaurs, Earth experienced a short burst of intense volcanismSixty-six million years ago, an asteroid more than five miles wide smashed into the Earth at 70,000 miles per hour, instantly vaporizing upon impact. The strike obliterated most terrestrial life, including the dinosaurs, in a geological instant: Heavy dust blocked out the sun, setting off a cataclysmic chain of events from the bottom of the food chain to the top, killing off more than three-quarters of Earth's species—or so the popular theory goes. | |
Interstellar mystery solved by supercomputer simulationsAn interstellar mystery of why stars form has been solved thanks to the most realistic supercomputer simulations of galaxies yet made. | |
New 'high-entropy' alloy is as light as aluminum, as strong as titanium alloysResearchers from North Carolina State University and Qatar University have developed a new "high-entropy" metal alloy that has a higher strength-to-weight ratio than any other existing metal material. | |
Defects are perfect in laser-induced grapheneResearchers at Rice University have created flexible, patterned sheets of multilayer graphene from a cheap polymer by burning it with a computer-controlled laser. The process works in air at room temperature and eliminates the need for hot furnaces and controlled environments, and it makes graphene that may be suitable for electronics or energy storage. | |
Warmer Pacific Ocean could release millions of tons of seafloor methaneOff the West Coast of the United States, methane gas is trapped in frozen layers below the seafloor. New research from the University of Washington shows that water at intermediate depths is warming enough to cause these carbon deposits to melt, releasing methane into the sediments and surrounding water. | |
Is an understanding of dark matter around the corner? Experimentalists unsureScientists have long known that dark matter is out there, silently orchestrating the universe's movement and structure. But what exactly is dark matter made of? And what does a dark matter particle look like? That remains a mystery, with experiment after experiment coming up empty handed in the quest to detect these elusive particles. | |
As gay marriage gains voter acceptance, study illuminates a possible reasonConventional wisdom holds that changing the views of voters on divisive issues is difficult if not impossible—and that when change does occur, it is almost always temporary. | |
New theory suggests alternate path led to rise of the eukaryotic cellAs a fundamental unit of life, the cell is central to all of biology. Better understanding how complex cells evolved and work promises new revelations in areas as diverse as cancer research and developing new crop plants. |
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