The Sky Tonight

July 03, 2015

X-raying ion channels
Trieste, Italy (SPX) Jun 28, 2015
"In this field, x-ray crystallography is considered the ultimate form of evidence: if something is demonstrated with this technique, then it just has to be true" explains SISSA professor Vincent Torre. Torre coordinated a study just published in the Proceedings of the National Academy of Sciences (PNAS) which used x-ray crystallography to demonstrate that the "selectivity filter" of ion channels is dynamic rather than rigid, thereby contributing to the solution to a long-standing debate among biop ... read more

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18 holes in outer space: Comet's crater's revealed After billions of years of solitary travel through cold, dark outer space, comet 67P/Churyumov-Gerasimenko has recently yielded many secrets, often surprising ones, to the prodding of Europe's Rosetta spacecraft. ... more		Universe's first stars left unique chemical signatures Researchers at Lawrence Livermore National Laboratory are on the case of the missing alpha star signatures. Scientist Brian Bucher recently made a breakthrough in predicting what the universe's first generation of stars might look like - chemically speaking. ... more		NASA missions monitor a waking black hole NASA's Swift satellite detected a rising tide of high-energy X-rays from the constellation Cygnus on June 15, just before 2:32 p.m. EDT. About 10 minutes later, the Japanese experiment on the Intern ... more
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Million-mile journey to an asteroid begins for ASU-built instrument A journey that will stretch millions of miles and take years to complete begins with a short trip to a loading dock. The OSIRIS-REx Thermal Emission Spectrometer (OTES for short) is the first space ... more		Precise ages of largest number of stars hosting planets ever measured A new study of 33 Kepler stars with solar-like oscillations to be published in Monthly Notices of the Royal Astronomical Society. The 33 Kepler stars have been selected for their solar like oscillat ... more		EU states to hold talks on 'drone wall' to protect bloc Denmark military intel fails to identify source of drone flights Lithuania eases rules on shooting down drones		New model of cosmic stickiness favors 'Big Rip' demise of universe The universe can be a very sticky place, but just how sticky is a matter of debate. That is because for decades cosmologists have had trouble reconciling the classic notion of viscosity based on the ... more
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