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Cosmic finding ushers in 'new age of astronomy'

Researchers at the University of Delaware part of an international team that observed 28 high-energy particle events coming from cosmic accelerators, possibly exploding stars or accreting black holes. The discovery marks the first solid evidence of neutrinos originating from sources outside our solar system.

SourceUniversity of Delaware·JournalScience·DateNov 21, 2013

Biologists measure evolution's Big Bang

Researchers measured evolution rates during the Cambrian explosion, resolving 'Darwin's dilemma' and explaining the sudden appearance of modern animal groups. The study found that moderately accelerated evolution was sufficient to explain the emergence of arthropods.

SourceUniversity of Adelaide·JournalCurrent Biology·DateSep 12, 2013

Removing complexity layers from the universe's creation

Physicists propose that Einstein's special relativity emerges from a combination of quantum dynamics and gravity. This theory predicts the formation of charge asymmetry between particles and anti-particles at ultra-minute fractions of seconds after the Big Bang, in agreement with recent cosmological observations.

SourceSpringer·JournalThe European Physical Journal C·DateJul 26, 2013

The limits to galactic growth

Astronomers have observed the Sculptor Galaxy (NGC 253) producing an outflow of molecular gas, curtailing its ability to form new stars. The galaxy's starburst region is shedding massive amounts of gas, with a total mass estimated to be nine times that of our Sun each year.

SourceMax-Planck-Gesellschaft·JournalNature·DateJul 25, 2013

World's smallest droplets

Researchers at Vanderbilt University have created the world's smallest liquid droplets in a lab experiment. The tiny droplets, about one-100,000th the size of a virus, exhibit flow-like behavior similar to quark-gluon plasma, a state of matter thought to have existed in the universe during its early stages.

SourceVanderbilt University·JournalPhysics Letters B·DateMay 16, 2013

Measuring the magnetism of antimatter

A team of Harvard scientists has successfully measured the magnetic charge of single particles of matter and antimatter, achieving a significant increase in accuracy for antiprotons. This breakthrough could provide new insights into the nature of matter and help address fundamental questions about the universe.

SourceHarvard University·JournalPhysical Review Letters·DateMar 25, 2013

Inaugural issue of Big Data journal launched at Strata Conference, Santa Clara, CA

The inaugural issue of Big Data journal launched at the Strata Conference, featuring premium content from leading experts on big data. The Journal aims to facilitate dialogue among researchers, analysts, and policymakers on the challenges and opportunities in big data, published under the Creative Commons Attribution license.

Drug resistance: 'Baby steps' can pay off big

Researchers developed a mathematical model to predict how specific mutations affect antibiotic resistance. They discovered that small changes can increase resistance by up to 500%, challenging the idea of big effects from big changes.

SourceRice University·JournalProceedings of the National Academy of Sciences·DateJan 9, 2013

'Universal' personality traits don't necessarily apply to isolated indigenous people

A study of an isolated Bolivian society found that five widely accepted personality traits may not be universal, instead revealing a unique 'Big Two' structure including prosociality and industriousness. Researchers suggest expanding beyond Western populations to better understand personality development.

SourceAmerican Psychological Association·JournalJournal of Personality and Social Psychology·DateJan 3, 2013

Magnetic fields created before the first stars

A team of researchers has calculated the strength and distribution of magnetic fields in the early universe, finding that they existed even before the first stars formed. The calculations show that these weak magnetic fields were present throughout the entire plasma volume, with strengths as low as 10^-20 Tesla.

SourceRuhr-University Bochum·JournalPhysical Review Letters·DateJan 2, 2013

Stars reveal the secrets of looking young

Researchers used the MPG/ESO 2.2-metre telescope and Hubble Space Telescope to study 21 globular clusters, finding that a few were young with blue stragglers distributed throughout, while others were old with the stars clumped in the centre. This reveals big differences in the speed of evolution from cluster to cluster.

SourceESO·JournalNature·DateDec 19, 2012

When the first stars blinked on

A team of researchers at MIT analyzed light from a quasar, which is the most distant object known, to study the era of the first stars and galaxies. They found no evidence of heavy elements in the surrounding gaseous cloud, suggesting that the quasar dates back to an era nearing the universe's first stars.

Quantum thermodynamics

Researchers found that blackbody radiation shifts caused by surrounding chamber temperature can impose limits on atomic clock precision. The study, led by Charles Clark and Marianna Safronova, explores how ytterbium atoms are affected by this faint form of influence, crucial for future clock recalibrations.

SourceJoint Quantum Institute·JournalPhysical Review Letters·DateDec 4, 2012