A study appearing in Science magazine today shows a vast ice sheet in northeast Greenland has begun a phase of speeded-up ice loss, contributing to destabilization that will cause global sea-level rise for “decades to come.” read more
A new RNA test of blood platelets can be used to detect, classify and pinpoint the location of cancer by analysing a sample equivalent to one drop of blood. Using this new method for blood-based RNA tests of blood platelets, researchers have been able to identify cancer with 96 per cent accuracy.
Physicists from the universities of Groningen and Nijmegen (the Netherlands) and Hong Kong have discovered that transistors made of ultrathin layers molybdeendisulfide (MoS2) are not only superconducting at low temperatures but also stay superconducting in a high magnetic field. This is a unique phenomenon with exciting promises for the future. The experiments were the first to have been performed at the High Field Magnet Laboratory in Nijmegen, jointly operated by Radboud University and the FOM foundation.
Gradual melting of winter snow helps feed water to farms, cities and ecosystems across much of the world, but this resource may soon be critically imperiled. In a new study, scientists have identified snow-dependent drainage basins across the northern hemisphere currently serving 2 billion people that run the risk of declining supplies in the coming century. The basins take in large parts of the American West, southern Europe, the Mideast and central Asia
In fusion reactor designs, superconductors (which suffer no resistive power loss) are used to generate the magnetic fields that confine the 100 million degree C plasma. While increasing magnetic field strength offers potential ways to improve reactor performance, conventional low-temperature superconductors suffer dramatic drops in current carrying ability at high magnetic fields.
On November 12 at 4 a.m. EST the National Hurricane Center issued the last advisory on Extra-Tropical Cyclone Kate, located several hundred miles south-southeast of Cape Race, Newfoundland. NOAA’s GOES-East satellite captured a visible light image of the storm
A short animation (spanning about 10 minutes) captured by Ernesto Guido on Nov.
One week ago to the day Cyclone Chapala, the first Category 1 cyclone to strike Yemen in recorded history made landfall in Yemen, then a second tropical cyclone named Megh made landfall. The Global Precipitation Measurement mission or GPM satellite provided a look at rainfall rates and totals dropped by the historic double tropical cyclones. read more
NASA astronaut Scott Kelly salutes all past and present US Veterans from the International Space Station on Veteran’s Day, Nov. 11, 2015.
Because social media is used so pervasively in modern society to tap into people’s behaviors and thoughts, neuroscientists are finding Facebook, Twitter, and other platforms to be very useful tools in a broad range of research areas. A review published November 11 in Trends in Cognitive Sciences describes some of the approaches that neuroscientists can use to gain valuable insights from social media and highlights some of the questions that might be answered by social media-based studies
An international team of astronomers, led researchers from the University of Cambridge and the Australian National University, have identified some of the oldest stars in our galaxy, which could contain vital clues about the early Universe, including an indication of how the first stars died. read more
Astronomers have discovered the oldest known stars, dating from before the Milky Way Galaxy formed, when the Universe was just 300 million years old. read more
Using a novel statistical model, a research team led by Columbia University’s Mailman School of Public Health mapped the spread of the 2014-2015 Ebola outbreak in Sierra Leone, providing the most detailed picture to date on how and where the disease spread and identifying two critical opportunities to control the epidemic. The result, published in the Journal of the Royal Society Interface , matches with details known about the early phase of the Ebola outbreak, suggesting the real-time value of the method to health authorities as they plan interventions to contain future outbreaks, and not just of Ebola. read more
The way to increase the power and efficiency of magnetic fusion energy may be to risk running the plasma – hotter than 100-million-degrees C – closer than ever to the wall, according to new experimental results achieved by the first U.S.-China fusion research team. read more
Meet “Super H mode,” a newly discovered state of tokamak plasma that could sharply boost the performance of future fusion reactors. This new state raises the pressure at the edge of the plasma beyond what previously had been thought possible, creating the potential to increase the power production of the superhot core of the plasma.
Since the late 1980s, scientists have discovered nearly 5,000 planetary bodies orbiting stars other than the sun. But astronomers are still working on what exactly we should call them.
A shot of icy chemical cocktail – that’s the promising solution to controlling hot plasmas in fusion devices, researchers say. read more
The National Institutes of Natural Sciences National Institute for Fusion Science applied the “Momentary Heating Propagation Method” to the DIII-D tokamak device operated for the United States Office of Science, Department of Energy, by the General Atomics and made the important discovery of a new plasma confinement state. This discovery was introduced in the November 4, 2015, issue of Scientific Reports , a journal of the British science journal Nature group, in an article titled “Self-regulated oscillation of transport and topology of magnetic islands in toroidal plasmas.” read more
For more than 60 years, fusion scientists have tried to use “magnetic bottles” of various shapes and sizes to confine extremely hot plasmas, with the goal of producing practical fusion energy. But turbulence in the plasma has, so far, confounded researchers’ ability to efficiently contain the intense heat within the core of the fusion device, reducing performance. Now, scientists have used one of the world’s largest supercomputers to reveal the complex interplay between two types of turbulence known to occur in fusion plasmas, paving the way for improved fusion reactor design.
A meteor stream from 2P Encke vs the orbit of Mercury. Image credit: NASA/Goddard, Artist’s concept Leonid meteor storms . Taurid meteor swarms