December 24, 2013 |
Working With NASA On The Space Structures Of The Future Houston TX (SPX) Dec 23, 2013 - NASA is seeking to advance a technology with the potential to drastically change how we envision transporting and safeguarding astronauts: inflatable structures. Space structure engineers and designers have identified inflatables as a lightweight and durable supplement to current human spaceflight architectures. NASA has recognized a number of potential applications for the versatile techn ... more | |
Using an Atmosphere to Weigh a Planet Moffett Field CA (SPX) Dec 23, 2013 - A new study finds that the mass of an exoplanet can be determined solely by looking at the starlight that passes through the planet's atmosphere. When sunlight streaming through a planet's atmosphere reaches our telescopes, the light's spectra acts like a calling card for the different gases that make up that atmosphere. Water vapor has one type of spectral signature, for instance, while c ... more | |
Van Allen Probes Shed Light on Decades-old Mystery Greenbelt MD (SPX) Dec 23, 2013 - New research using data from NASA's Van Allen Probes mission helps resolve decades of scientific uncertainty over the origin of ultra-relativistic electrons in Earth's near space environment, and is likely to influence our understanding of planetary magnetospheres throughout the universe. Understanding the processes that control the formation and ultimate loss of such relativistic electron ... more | |
Solar activity not a key cause of climate change Edinburgh UK (SPX) Dec 23, 2013 - Climate change has not been strongly influenced by variations in heat from the sun, a new scientific study shows. The findings overturn a widely held scientific view that lengthy periods of warm and cold weather in the past might have been caused by periodic fluctuations in solar activity. Research examining the causes of climate change in the northern hemisphere over the past 1000 y ... more | |
NASA Awards Launch Services Contract for InSight Mission Washington DC (SPX) Dec 23, 2013 - NASA has selected United Launch Services LLC of Centennial, Colo., to launch the Interior Exploration Using Seismic Investigations, Geodesy and Heat Transport (InSight) mission to Mars. InSight will launch in March 2016 aboard an Atlas V 401 rocket from Space Launch Complex 3E at Vandenberg Air Force Base in California. The total cost for NASA to launch InSight is approximately $160 ... more | |
The Rise and Fall of Galactic Cities Pasadena CA (JPL) Dec 23, 2013 - In the fable of the town and country mice, the country mouse visits his city-dwelling cousin to discover a world of opulence. In the early cosmos, billions of years ago, galaxies resided in the equivalent of urban or country environments. Those that dwelled in crowded areas called clusters also experienced a kind of opulence, with lots of cold gas, or fuel, for making stars. Today, however ... more | |
How hypergravity impacts electric arcs Heidelberg, Germany (SPX) Dec 23, 2013 - Arc discharges are common in everyday conditions like welding or in lightning storms. But in altered gravity, not as much is known about the behaviour of electric discharges. For the first time, Jiri Sperka from Masaryk University, Czech Republic, and his Dutch colleagues studied the behaviour of a special type of arc discharge, so-called glide arc, in varying hypergravity conditions, up t ... more | |
Gilat Awarded Project from Colombia's MINTIC Petah Tikva, Israel (SPX) Dec 23, 2013 - Gilat Satellite Networks Ltd. has been awarded a project valued at $99-million over approximately three and a half years. The contract for the project is expected to be signed shortly. In support of the Kioscos Digitales project, Gilat will provide Colombia's Ministry of Information and Technology (MINTIC) Connectivity Division with deployment and connectivity services to rural communities and s ... more | |
Powerful ancient explosions explain new class of supernovae Santa Barbara CA (SPX) Dec 23, 2013 - Astronomers affiliated with the Supernova Legacy Survey (SNLS) have discovered two of the brightest and most distant supernovae ever recorded, 10 billion light-years away and a hundred times more luminous than a normal supernova. Their findings appear in the Dec. 20 issue of the Astrophysical Journal. These newly discovered supernovae are especially puzzling because the mechanism that powe ... more | |
Massive stars mark out Milky Way's 'missing' arms Leeds UK (SPX) Dec 23, 2013 - A 12-year study of massive stars has reaffirmed that our Galaxy has four spiral arms, following years of debate sparked by images taken by NASA's Spitzer Space Telescope that only showed two arms. The new research, which is published online today [17 December] in the Monthly Notices of the Royal Astronomical Society, is part of the RMS Survey, which was launched by academics at the Univers ... more | |
Charge Order competes with superconductivity Berlin, Germany (SPX) Dec 23, 2013 - Superconductors are materials that can conduct electricity without any loss of energy. In order to exhibit this property, however, classical superconductors need to be cooled almost to absolute zero (minus 273 degrees centigrade). Even the so-called high-Tc superconductors still require very low temperatures of minus 200 degrees centigrade. While cooling down to these temperatures involves ... more | |
Salt under pressure is not NaCl Moscow, Russia (SPX) Dec 23, 2013 - In the very beginning of the school chemistry course, we are told of NaCl as an archetypal ionic compound. Being less electronegative, sodium loses its electron to chlorine, which, following the "octet rule", thus acquires the 8-electron electronic configuration of a noble gas. All the rules predict NaCl to be the only possible compound formed by chlorine and sodium. The research team led ... more | |
'Universal ripple' could hold the secret to high-temperature superconductivity Vancouver, Canada (SPX) Dec 23, 2013 - UBC researchers have discovered a universal electronic state that controls the behavior of high-temperature superconducting copper-oxide ceramics. The work, published this week in the journal Science, reveals the universal existence of so-called 'charge-density-waves' - static ripples formed by the self-organization of electrons in the material's normal state. These ripples carry the seed ... more | |
Salty surprise -- ordinary table salt turns into 'forbidden' forms Hamburg, Germany (SPX) Dec 23, 2013 - High-pressure experiments with ordinary table salt have produced new chemical compounds that should not exist according to the textbook rules of chemistry. The study at DESY's X-ray source PETRA III and at other research centres could pave the way to a more universal understanding of chemistry and to novel applications, as the international research team, led by Prof. Artem Oganov of Stony Brook ... more | |
New magnetic behavior in nanoparticles could lead to even smaller digital memories Barcelona, Spain (SPX) Dec 23, 2013 - Electronic devices such as mobile phones and tablets spur on a scientific race to find smaller and smaller information processing and storage elements. One of the challenges in this race is to reproduce certain magnetic effects at nanometre scale. An international collaboration of scientists led by researchers from the Universitat Autonoma de Barcelona Department of Physics and the Institu ... more | |
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Electron's shapeliness throws a curve at supersymmetry New Haven CT (SPX) Dec 23, 2013 - A small band of particle-seeking scientists at Yale and Harvard has established a new benchmark for the electron's almost perfect roundness, raising doubts about certain theories that predict what lies beyond physics' reigning model of fundamental forces and particles, the Standard Model. "We know the Standard Model does not encompass everything," said Yale physicist David DeMille, who wit ... more | |
Electron 'antenna' tunes in to physics beyond Higgs Boston MA (SPX) Dec 23, 2013 - Though it was hailed as a triumph for the "Standard Model" of physics - the reigning model of fundamental forces and particles - physicists were quick to emphasize that last year's discovery of the Higgs boson still left gaps in our understanding of the universe. But in making the most precise measurements ever of the shape of electrons, a team of Harvard and Yale scientists, led by Harvar ... more | |
The analogue of a tsunami for telecommunication Moscow, Russia (SPX) Dec 23, 2013 - Development of electronics and communication requires a hardware base capable for increasingly larger precision, ergonomics and throughput. For communication and GPS-navigation satellites, it is of great importance to reduce the payload mass as well as to ensure the signal stability. Last year, researchers from the Moscow State University (MSU) together with their Swiss colleagues performed a st ... more | |
No early Christmas? Spacesuit issue delays second spacewalk to fix ISS cooling system Moscow (Voice of Russia) Dec 23, 2013 - Two American astronauts have completed the first stage of urgent repair work outside the International Space Station ahead of schedule, but a spacesuit issue has delayed a second spacewalk to revive the crippled cooling system. Rick Mastracchio and Michael Hopkins successfully removed an ammonia pump with a faulty valve in during a spacewalk that lasted for 5 hours and 28 minutes, instead ... more | |
China's moon rover continues lunar survey after photographing lander Beijing (XNA) Dec 23, 2013 - China's first moon rover, Yutu, or Jade Rabbit, continued patrol explorations on the lunar surface after taking photos of the lander for the fifth and final time early on Sunday. According to the State Administration of Science, Technology and Industry for National Defense (SASTIND), images transmitted to the ground after the latest photos were captured showed for the first time the nation ... more | |
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