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BBC
Greek leftist attacks EU 'poker': The leader of Greece's leftist party - predicted to top next month's election - accuses the EU and Germany of "playing poker with people's lives", as millions of euros are withdrawn from Greek banks.
Mladic 'headed ethnic cleansing': Former Bosnian Serb army commander Ratko Mladic intended to "ethnically cleanse" Bosnia, the opening day of his war crimes trial hears.
China veterans urge Zhou sacking: Communist Party veterans write to China's president to urge him to sack security chief Zhou Yongkang for supporting disgraced politician Bo Xilai.
French PM Ayrault names cabinet: France's new Socialist Prime Minister Jean-Marc Ayrault names his government but party leader Martine Aubry will not join the cabinet.
CBC
Suspected iPad thief in SkyTrain robbery arrested:Transit police in metro Vancouver say they have arrested one suspect in the theft of an iPad from a woman in a wheelchair last week.
Man guilty of killing fiancée during sex:A Nova Scotia man charged with murdering his fiancée has been found guilty of manslaughter. James Leopold said he accidentally killed Laura Lee Robertson during a night of drunken sex.
Longboarder's death has riders assessing risks:The death of a longboarder in downtown Toronto after an apparent altercation with a cab driver has fellow riders thinking about their safety when travelling on city streets.
New York Times Science
Bodies Inert, They Moved a Robot With Their Minds: Scientists said a tiny brain implant allowed two people who are virtually paralyzed below the neck to manipulate a robotic arm
Brain Disease Is Found in Veterans Exposed to Bombs: The same degenerative brain disease found in football players and boxers has been found in veterans exposed to roadside bombs, a finding with potentially profound implications
Side Effects: The Tricky Business of Taming the Beasts: When it comes to the natural world, what is domestication, really
Side Effects: Microscopic Neighbors, Evolving Together: A novel experiment sought to demonstrate that how different living things in a community bump up against one another affects how they evolve
Boca Sanibeni Journal: Dam Project Would Displace Villages in Jungle Valley of Peru: A hydroelectric dam supported by the country’s president would send thousands of people to live elsewhere
Visualizing Science
The Case of the Missing Dark Matter
A survey of the galactic region around our solar system by the European Southern Observatory (ESO) has turned up a surprising lack of dark matter, making its alleged existence even more of a mystery.
Dark matter is an invisible substance that is suspected to exist in large quantity around galaxies, lending mass but emitting no radiation. The only evidence for it comes from its gravitational effect on the material around it… up to now, dark matter itself has not been directly detected. Regardless, it has been estimated to make up 80% of all the mass in the Universe.
A team of astronomers at ESO’s La Silla Observatory in Chile has mapped the region around over 400 stars near the Sun, some of which were over 13,000 light-years distant. What they found was a quantity of material that coincided with what was observable: stars, gas, and dust… but no dark matter.
“The amount of mass that we derive matches very well with what we see — stars, dust and gas — in the region around the Sun,” said team leader Christian Moni Bidin of the Universidad de Concepción in Chile. “But this leaves no room for the extra material — dark matter — that we were expecting. Our calculations show that it should have shown up very clearly in our measurements. But it was just not there!”
Based on the team’s results, the dark matter halos thought to envelop galaxies would have to have “unusual” shapes — making their actual existence highly improbable.
Still, something is causing matter and radiation in the Universe to behave in a way that belies its visible mass. If it’s not dark matter, then what is it?
“Despite the new results, the Milky Way certainly rotates much faster than the visible matter alone can account for,” Bidin said. “So, if dark matter is not present where we expected it, a new solution for the missing mass problem must be found.
“Our results contradict the currently accepted models. The mystery of dark matter has just became even more mysterious.”
Recent Interesting Articles on the arXiv
Naive Dimensional Analysis in Holography
Three-loop β-functions for top-Yukawa and the Higgs self-interaction in the Standard Model
Probing New Physics via pp-> W+W- -> lvjj at the CERN LHC
Constraints to Holographic Dark Energy Model via Type Ia Supernovae, Baryon Acoustic Oscillation and
Tachyon Condensation in Bose--Einstein Condensates
Particle Physics Jobs Rumor Mill current - York Makes Offer
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