News About Stellar Chemistry
February 12, 2017
A bridge of stars connects 2 dwarf galaxies
Cambridge, UK (SPX) Feb 10, 2017
The Magellanic Clouds, the two largest satellite galaxies of the Milky Way, appear to be connected by a bridge stretching across 43,000 light years, according to an international team of astronomers led by researchers from the University of Cambridge. The discovery is reported in the journal Monthly Notices of the Royal Astronomical Society (MNRAS) and is based on the Galactic stellar census being conducted by the European Space Observatory, Gaia. For the past 15 years, scientists have been eagerl ... read more

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Hubble witnesses massive comet-like object pollute atmosphere of a white dwarf
For the first time, scientists using NASA's Hubble Space Telescope have witnessed a massive object with the makeup of a comet being ripped apart and scattered in the atmosphere of a white dwarf, the ... more
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Pure iron grains are rare in the universe
Pure iron grains in interstellar space are far rarer than previously thought, shedding new light on the evolution history of matters in the universe. Scientists are unsure what form iron takes in ou ... more
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New evidence in favor of dark matter
Why do the majority of astronomers believe in dark matter: matter whose composition is unknown but which seems to make up 80% of the mass of the galaxies? The concept was invented in the 1930's by F ... more
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Scientists Estimate Solar Nebula's Lifetime
About 4.6 billion years ago, an enormous cloud of hydrogen gas and dust collapsed under its own weight, eventually flattening into a disk called the solar nebula. Most of this interstellar material ... more
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NASA Advances First-Ever Silicon-Based X-ray Optic
NASA scientist William Zhang has created and proven a technique for manufacturing lightweight, high-resolution X-ray mirrors using silicon - a material commonly associated with computer chips. Zhang ... more
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Tail of stray black hole hiding in the Milky Way
It is difficult to find black holes, because they are completely black. In some cases black holes cause effects which can be seen. For example if a black hole has a companion star, gas streaming int ... more
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Tracing the Cosmic Web with Remote Star-Forming Galaxies
A research group led by Hiroshima University has revealed a picture of the increasing fraction of massive star-forming galaxies in the distant universe. Massive star-forming galaxies in the distant ... more
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Mind the Gap: Rapid Burster behaviour explained
Scientists observing a curious neutron star in a binary system known as the 'Rapid Burster' may have solved a forty-year-old mystery surrounding its puzzling X-ray bursts. They discovered that its m ... more
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NASA's fermi discovers the most extreme blazars yet
NASA's Fermi Gamma-ray Space Telescope has identified the farthest gamma-ray blazars, a type of galaxy whose intense emissions are powered by supersized black holes. Light from the most distant obje ... more
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Both push and pull drive our galaxy's race through space
Although we can't feel it, we're in constant motion: the earth spins on its axis at about 1,600 km/h; it orbits around the sun at about 100,000 km/h; the sun orbits our Milky Way galaxy at about 850 ... more
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Celestial cat meets cosmic lobster
NGC 6334 is located about 5500 light-years away from Earth, while NGC 6357 is more remote, at a distance of 8000 light-years. Both are in the constellation of Scorpius (The Scorpion), near the tip o ... more
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A New Tool to Study Galaxy Evolution
RemoveYoung is a new tool developed by Instituto de Astrofisica e Ciencias do Espaco (IA) astronomers Jean Michel Gomes and Polychronis Papaderos. It is designed to suppress, from galaxy images, the ... more
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Chiral quantum optics is a new research field with bright perspectives
Recently, surprising physical effects were observed using special microscopic waveguides for light. Such "photonic structures" currently are revolutionizing the fields of optics and photonics, and h ... more
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Keck will peer deep into the cosmic web with new spectrograph
W. M. Keck Observatory (Keck Observatory) is pushing the cutting edge of scientific discovery with the addition of the world's most sensitive instrument for measuring the tendrils of faint gas in th ... more
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NASA's fermi sees gamma rays from 'hidden' solar flares
An international science team says NASA's Fermi Gamma-ray Space Telescope has observed high-energy light from solar eruptions located on the far side of the sun, which should block direct light from ... more
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Stars in the halo of the Milky Way travel often in groups
Many stars in the halo that surrounds the Milky Way travel in groups. This is the outcome of a recent analysis of data for millions of stars from the Gaia space mission. Astronomers report their dis ... more
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Cosmic dust that formed our planets traced to giant stars
Scientists have identified the origin of key stardust grains present in the dust cloud from which the planets in our Solar System formed, a study suggests. Researchers have solved a long-standing pu ... more
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Rapid gas flares discovered in white dwarf star for the first time
Incredibly rapid gas flares from a white dwarf binary star system have been detected for the first time by Oxford University scientists. The first sighting of such activity, it suggests that our cur ... more
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Work Begins in Palo Alto on NASA's Dark Energy Hunter
Lockheed Martin is helping NASA begin the hunt for dark energy, a mysterious force powering the universe's accelerating expansion. An instrument assembly the company is developing, if selected by NA ... more
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NuSTAR finds new clues to 'chameleon supernova'
"We're made of star stuff," astronomer Carl Sagan famously said. Nuclear reactions that happened in ancient stars generated much of the material that makes up our bodies, our planet and our solar sy ... more
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Discovered one of the brightest distant galaxies so far known
An international team led by researchers from the Instituto de Astrofisica de Canarias (IAC) and the University of La Laguna (ULL) has discovered one of the brightest "non-active" galaxies in the ea ... more
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Hunting for dark matter with massive magnets and haloscopes
Scientists at the Institute for Basic Science in Seoul, South Korea, have designed powerful magnets to hunt for the axion, a theoretical particle that could be a component of dark matter. ... more
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A tale of two pulsars' tails: Plumes offer geometry lessons to astronomers
Like cosmic lighthouses sweeping the universe with bursts of energy, pulsars have fascinated and baffled astronomers since they were first discovered 50 years ago. In two studies, international team ... more
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eROSITA travels to Russia for launch into deep space in 2018
On 20 January 2017, the completed eROSITA X-ray telescope boarded a cargo plane and was transported from Munich, where it had been built at the Max Planck Institute for Extraterrestrial Physics, to ... more
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