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News About Stellar Chemistry
May 27, 2015
Taking control of light emission
Boston MA (SPX) May 22, 2015
Researchers have found a way to couple the properties of different two-dimensional materials to provide an exceptional degree of control over light waves. They say this has the potential to lead to new kinds of light detection, thermal-management systems, and high-resolution imaging devices. The new findings - using a layer of one-atom-thick graphene deposited on top of a similar 2-D layer of a material called hexagonal boron nitride (hBN) - are published in the journal Nano Letters. The work is c ... read more

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Satellite Services supplies on-board sub-systems for smallsats and microsats.
Uncovering the mysteries of cosmic explosions
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The dreadful beauty of Medusa
This beautiful planetary nebula is named after a dreadful creature from Greek mythology - the Gorgon Medusa. It is also known as Sharpless 2-274 and is located in the constellation of [Gemini] (The ... more
Supernova ignition surprises scientists
Scientists have captured the early death throes of supernovae for the first time and found that the universe's benchmark explosions are much more varied than expected. The scientists used the Kepler ... more
Gas arms form giant spiraling molecular cradles of dense molecular cores
A research team led by Dr. Hauyu Liu at the Institute of Astronomy and Astrophysics, Academia Sinica (ASIAA) observed the luminous OB cluster-forming massive molecular clump G33.92+0.11 with the Ata ... more
Caltech astronomers observe a supernova colliding with its companion star
Type Ia supernovae, one of the most dazzling phenomena in the universe, are produced when small dense stars called white dwarfs explode with ferocious intensity. At their peak, these supernovae can ... more
Cause of galactic death: Strangulation
As murder mysteries go, it's a big one: how do galaxies die and what kills them? A new study, published in the journal Nature, has found that the primary cause of galactic death is strangulation, wh ... more
Fresh theories about dark matter
Tom Broadhurst, the Ikerbasque researcher in the Department of Theoretical Physics of the UPV/EHU, together with Sandor Molnar of the National Taiwan University and visiting Ikerbasque researcher at ... more
Astronomers Baffled by Discovery of Rare Quasar Quartet
Using the W. M. Keck Observatory in Hawaii, a group of astronomers led by Joseph Hennawi of the Max Planck Institute for Astronomy have discovered the first quadruple quasar: four rare active black ... more
Hubble Catches Stellar Exodus in Action
Using NASA's Hubble Space Telescope, astronomers have captured for the first time snapshots of fledging white dwarf stars beginning their slow-paced, 40-million-year migration from the crowded cente ... more
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Scientists at Keck Discover the Fluffiest Galaxies
An international team of researchers led by Pieter van Dokkum at Yale University have used the W. M. Keck Observatory to confirm the existence of the most diffuse class of galaxies known in the univ ... more
Water was plentiful in the early universe
Astronomers have long held that water - two hydrogen atoms and an oxygen atom - was a relative latecomer to the universe. They believed that any element heavier than helium had to have been formed i ... more
Delta Cephei's hidden companion
To measure distances in the Universe, astronomers use Cepheids, a family of variable stars whose luminosity varies with time. Their role as distance calibrators has brought them attention from resea ... more
Subaru Telescope Observers Superflare Stars with Large Starspots
A team of astronomers has used the High Dispersion Spectrograph on the Subaru Telescope to conduct spectroscopic observations of Sun-like "superflare" stars first observed and cataloged by the Keple ... more
Milky Way may have four spiral arms
Evidence suggests the Milky Way galaxy has an additional two spiral arms. That makes four. ... more
Star Explosion is Lopsided, Finds NASA's NuSTAR
NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, has found evidence that a massive star exploded in a lopsided fashion, sending ejected material flying in one direction and the core of the s ... more
Proto super star cluster - a cosmic 'dinosaur egg' about to hatch
Globular clusters - dazzling agglomerations of up to a million ancient stars - are among the oldest objects in the universe. Though plentiful in and around many galaxies, newborn examples are vanish ... more
Sounding rocket unveils makeup of a supernova remnant
he OGRESS payload was successfully launched on a NASA Black Brant IX suborbital sounding rocket 4:30:01:05 a.m. EDT (2:30:01:05 a.m. MDT), May 2, from the White Sands Missile Range in New Mexico. ... more
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    Dark-Matter Labs Become Subterranean Centers for Science
    Deep beneath our feet, below mountains and mine shafts, a scientific transformation is taking place. Laboratories that were custom built to search for particles such as neutrinos, and most recently ... more
    The Dark Matter 'conspiracy'
    Surprising gravitational similarities between spiral and elliptical galaxies have been discovered by an international team, including astronomers from Swinburne University of Technology, implying th ... more
    Pulsar with widest orbit ever detected
    A team of highly determined high school students discovered a never-before-seen pulsar by painstakingly analyzing data from the National Science Foundation's (NSF) Robert C. Byrd Green Bank Telescop ... more
    The Dark Matter Conspiracy
    An international team of astronomers, led by Michele Cappellari from the University of Oxford, has used data gathered by the W. M. Keck Observatory in Hawaii to analyze the motions of stars in the o ... more
    NuSTAR Captures Possible 'Screams' from Zombie Stars
    Peering into the heart of the Milky Way galaxy, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) has spotted a mysterious glow of high-energy X-rays that, according to scientists, could be the ... more
    First Version of Newest USNO Star Catalog Released
    The United States Naval Observatory (USNO) has released the First Edition of its USNO Robotic Astrometric Telescope star catalog, URAT1. This catalog is the follow-on to the Observatory's previous U ... more
    Riddle of Galactic Thin-Thick Disk Solved
    A long-standing puzzle regarding the nature of disk galaxies has finally been solved by a team of astronomers led by Ivan Minchev from the Leibniz Institute for Astrophysics Potsdam (AIP), using sta ... more
    Water could have been abundant in the first billion years
    How soon after the Big Bang could water have existed? Not right away, because water molecules contain oxygen and oxygen had to be formed in the first stars. Then that oxygen had to disperse and unit ... more
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