Spiral arms hint at the presence of planets
A new image of the disk of gas and dust around a sun-like star has spiral-arm-like structures. These features may provide clues to the presence of embedded but as-yet-unseen planets.
Scientists release most accurate simulation of the universe to date
(PhysOrg.com) -- The Bolshoi supercomputer simulation, the most accurate and detailed large cosmological simulation run to date, gives physicists and astronomers a powerful new tool for understanding such ...
Mastering the mysteries of the Madden-Julian Oscillation
Tropical monsoons, cyclones and thunderstorms. Weather patterns around the world are influenced by the MJO. And now, climate scientists can model it, thanks to research from Pacific Northwest National Laboratory ...
Bursting neurons follow the same beat, sometimes
A simplified mathematical model of the brain's neural circuitry shows that repetitious, overlapped firing of neurons can lead to the waves of overly synchronized brain activity that may cause the halting movements that are ...
Astrophysicists report first simulation to create a Milky Way-like galaxy
(PhysOrg.com) -- After nine months of number-crunching on a powerful supercomputer, a beautiful spiral galaxy matching our own Milky Way emerged from a computer simulation of the physics involved in galaxy ...
Arctic ice melt could pause for several years, then resume again
Although Arctic sea ice appears fated to melt as the climate continues to warm, the ice may temporarily stabilize or somewhat expand at times over the next few decades, new research indicates.
Connecting the dots on aerosol details
Predicting future climate change hangs on understanding aerosols, considered the fine details in the atmosphere. Researchers at Pacific Northwest National Laboratory and the National Center for Atmospheric ...
Chance favors the concentration of wealth, study shows
Most of our society's wealth is invested in businesses or other ventures that may or may not pan out. Thus, chance plays a role in where the wealth of a society will end up.
Rising oceans - too late to turn the tide?
Melting ice sheets contributed much more to rising sea levels than thermal expansion of warming ocean waters during the Last Interglacial Period, a UA-led team of researchers has found. The results further ...
Demonstrating the importance of dynamical systems theory
Two new papers in the Journal of General Physiology demonstrate the successes of using bifurcation theory and dynamical systems approaches to solve biological puzzles.
Trucks lose, ships win in warmer Arctic
Global warming will have a devastating effect on roads in the Arctic but open up tantalising routes for shipping, according to a study published on Sunday in the specialist journal Nature Climate Change.
Assessing the influence of Alaska glaciers is slippery work
With an estimated 34,000 square miles of ice, an area about the size of Maine, Alaska's multitude of glaciers have a global impact.
Cities affect storms, but downwind areas can get the worst of it
(PhysOrg.com) -- Urban areas modify thunderstorms that can eventually get stronger and more violent as they leave the cities and move to downwind areas, according to a Purdue University study.
Gulf currents primed bacteria to degrade oil spill
A new computer model of the Gulf of Mexico in the period after the oil spill provides insights into how underwater currents may have primed marine microorganisms to degrade the oil.