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News About Stellar Chemistry
April 15, 2014
Supernova Cleans Up Its Surroundings
Huntsville AL (SPX) Apr 13, 2014
Supernovas are the spectacular ends to the lives of many massive stars. These explosions, which occur on average twice a century in the Milky Way, can produce enormous amounts of energy and be as bright as an entire galaxy. These events are also important because the remains of the shattered star are hurled into space. As this debris field - called a supernova remnant - expands, it carries the material it encounters along with it. Astronomers have identified a supernova remnant that has several un ... read more

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Satellite Services supplies on-board sub-systems for smallsats and microsats.
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Searching High and Low for Dark Matter
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Galactic Serial Killer
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India developing satellites to study stars
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Fermi Data Tantalize With New Clues To Dark Matter
A new study of gamma-ray light from the center of our galaxy makes the strongest case to date that some of this emission may arise from dark matter, an unknown substance making up most of the materi ... more
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Galactic serial killer
Several clues in the structure of NGC 1316 reveal that its past was turbulent. For instance, it has some unusual dust lanes embedded within a much larger envelope of stars, and a population of unusu ... more
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Simple, like a neutron star
In how many ways can one describe an object? Take an apple: by just looking at it we can easily estimate its weight, shape and colour but we are unable to describe it at any other level, for example ... more
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New way to filter light
Light waves can be defined by three fundamental characteristics: their color (or wavelength), polarization, and direction. While it has long been possible to selectively filter light according to it ... more
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Dark energy hides behind phantom fields
Quintessence and phantom fields, two hypotheses formulated using data from satellites, such as Planck and WMAP, are among the many theories that try to explain the nature of dark energy. Now researc ... more
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A close look a the nearest standard candle supernova in several decades
Supernova 2014J in the nearby galaxy M82 -less than 12 million light-years away- exploded on January 14, 2014 and was the closest "standard candle" supernova since (at least) 42 years. An impr ... more
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Astronomers Looking for Clues to Water's Origins
A gas and dust cloud collapses to form a star. Amid a whirling disc of debris, little bits of rock coated with liquid water and ice begin to stick together. It is this stage of a star's formation th ... more
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Solar System's edge redefined
The Solar System has a new most-distant member, bringing its outer frontier into focus. New work from Carnegie's Scott Sheppard and Chadwick Trujillo of the Gemini Observatory reports the discovery ... more
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Scientists solve riddle of celestial archaeology
A decades old space mystery has been solved by an international team of astronomers led by Professor Martin Barstow of the University of Leicester and President-elect of the Royal Astronomical Socie ... more
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Dramatic new portrait helps define Milky Way's shape and contents
Using more than 2 million images collected by NASA's orbiting Spitzer Space Telescope, a team of Wisconsin scientists has stitched together a dramatic 360 degree portrait of the Milky Way, providing ... more
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Herschel completes largest survey of cosmic dust in local Universe
The largest census of dust in local galaxies has been completed using data from ESA's Herschel space observatory, providing a huge legacy to the scientific community. Cosmic dust grains are a ... more
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New view of supernova death throes
A powerful, new three-dimensional model provides fresh insight into the turbulent death throes of supernovas, whose final explosions outshine entire galaxies and populate the universe with elements ... more
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VLT spots largest yellow hypergiant star
Using ESO's Very Large Telescope Interferometer (VLTI), Olivier Chesneau (Observatoire de la Cote d'Azur, Nice, France) and an international team of collaborators have found that the yellow hypergia ... more
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Astronomers reveal 'largest yellow star ever'
Astronomers have spotted the largest yellow star ever observed in our galaxy and 1,300 times larger than the sun. ... more
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Astronomer maps out Earth's place in the universe among 'Council of Giants'
We live in a galaxy known as the Milky Way - a vast conglomeration of 300 billion stars, planets whizzing around them, and clouds of gas and dust floating in between. Though it has long been k ... more
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Galaxies in the early Universe mature beyond their years
An international team of researchers, including astronomers from Swinburne University of Technology, has discovered the most distant examples of galaxies in the early Universe that were already matu ... more
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    Death Stars in Orion Blast Planets before They Even Form
    The Orion Nebula is home to hundreds of young stars and even younger protostars known as proplyds. Many of these nascent systems will go on to develop planets, while others will have their planet-fo ... more
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    Critical mass not needed for supernova explosions
    Astronomers searching for clues about dark energy, the mysterious force that is speeding up the expansion of the Universe, have uncovered new evidence about the nature of supernovae, finding many ar ... more
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    Standard-Candle Supernovae are Still Standard, but Why?
    Sixteen years ago two teams of supernova hunters, one led by Saul Perlmutter of the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab), the other by Brian Schmidt of th ... more
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    Life Is Too Fast, Too Furious for Runaway Galaxy
    The spiral galaxy ESO 137-001 looks like a dandelion caught in a breeze in this new composite image from the Chandra X-ray Observatory and the Hubble Space Telescope. The galaxy is zooming tow ... more
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    Spiral galaxy spills blood and guts
    This new Hubble image shows spiral galaxy ESO 137-001, framed against a bright background as it moves through the heart of galaxy cluster Abell 3627. This cluster is violently ripping the spiral's e ... more
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    Fat or flat: getting galaxies into shape
    Australian astronomers have discovered what makes some spiral galaxies fat and bulging while others are flat discs - and it's all about how fast they spin. The research, led by the International Cen ... more
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    SMA Unveils How Small Cosmic Seeds Grow Into Big Stars
    New images from the Smithsonian's Submillimeter Array (SMA) telescope provide the most detailed view yet of stellar nurseries within the Snake nebula. These images offer new insights into how cosmic ... more
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    Closest, brightest supernova in decades is also a little weird
    A bright supernova discovered only six weeks ago in a nearby galaxy is provoking new questions about the exploding stars that scientists use as their main yardstick for measuring the universe. ... more
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