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News About Stellar Chemistry
September 01, 2014
Integral catches dead star exploding in a blaze of glory
Paris (ESA) Aug 29, 2014
Astronomers using ESA's Integral gamma-ray observatory have demonstrated beyond doubt that dead stars known as white dwarfs can reignite and explode as supernovae. The finding came after the unique signature of gamma rays from the radioactive elements created in one of these explosions was captured for the first time. The explosions in question are known as Type Ia supernovae, long suspected to be the result of a white dwarf star blowing up because of a disruptive interaction with a companion star ... read more

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Satellite Services supplies on-board sub-systems for smallsats and microsats.
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Evidence for Supernovas Near Earth
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Eta Carinae: Our Neighboring Superstars
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Spectacular supernova's mysteries revealed
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Space News from SpaceDaily.com
Memory Reformat Planned for Opportunity Mars Rover

Russia's Foton-M Satellite Landing Scheduled for September 1

Sparks Fly as NASA Pushes the Limits of 3-D Printing Technology

Too Early for Conclusions on Galileo Satellites Incident

NASA's Spitzer Telescope Witnesses Asteroid Smashup

NASA Wrapping Up Acoustic Testing for Space Launch System

NASA Probes Studying Earth's Radiation Belts to Celebrate Two Year Anniversary

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Scientists Say They Discovered Traces of One of Universe's Oldest Stars
A team of American and Japanese astronomers claims it has found a chemical signature of one of the first stars in the universe embedded in another old star, BBC reports. According to the study publi ... more
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Solar salad, anyone?
An Arizona State University alumna has devised the largest catalog ever produced for stellar compositions. Called the Hypatia Catalog, after one of the first female astronomers who lived ~350 AD in ... more
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ISS Spacewalkers Deploy Nanosatellite, Install and Retrieve Science
Two Expedition 40 spacewalkers, clad in Russian Orlan spacesuits, wrapped up a 5-hour, 11-minute excursion outside the International Space Station at 3:13 p.m. EDT Monday. Flight Engineers Alexander ... more
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New Milky Way maps help solve stubborn interstellar material mystery
An international team of sky scholars, including a key researcher from Johns Hopkins, has produced new maps of the material located between the stars in the Milky Way. The results should move astron ... more
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Stardust Team Reports Discovery of First Potential Interstellar Particles
Seven rare, microscopic interstellar dust particles that date to the beginnings of the solar system are among the samples collected by scientists who have been studying the payload from NASA's Stard ... more
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Stardust grains may reveal first look at interstellar space
Seven grains of stardust that are believed to come from outside our solar system are revealing new hints about what the universe is made of, scientists said Thursday. ... more
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White dwarfs crashing into neutron stars explain loneliest supernovae
A research team led by astronomers and astrophysicists at the University of Warwick have found that some of the Universe's loneliest supernovae are likely created by the collisions of white dwarf st ... more
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Hubble Finds Supernova Star System Linked To "Zombie Star"
Using NASA's Hubble Space Telescope, a team of astronomers has spotted a star system that could have left behind a "zombie star" after an unusually weak supernova explosion. A supernova typica ... more
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NASA's Fermi Space Telescope Reveals New Source of Gamma Rays
Observations by NASA's Fermi Gamma-ray Space Telescope of several stellar eruptions, called novae, firmly establish these relatively common outbursts almost always produce gamma rays, the most energ ... more
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ALMA Finds Double Star with Weird and Wild Planet-forming Discs
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found wildly misaligned planet-forming gas discs around the two young stars in the binary system HK Tauri. These new AL ... more
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Our galaxy is way smaller than previous estimates
The Milky Way is smaller than astronomers previously thought, according to new research. For the first time, scientists have been able to precisely measure the mass of the galaxy that contains our s ... more
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Astronomers measure weight of galaxies, expansion of universe
Astronomers at the University of British Columbia have collaborated with international researchers to calculate the precise mass of the Milky Way and Andromeda galaxies, dispelling the notion that t ... more
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Mysterious molecules in space
Over the vast, empty reaches of interstellar space, countless small molecules tumble quietly though the cold vacuum. Forged in the fusion furnaces of ancient stars and ejected into space when those ... more
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Glow in Space is Evidence of A Hot Bubble in Our Galaxy
When we look up to the heavens on a clear night, we see an immense dark sky with uncountable stars. With a small telescope we can also see galaxies, nebulae, and the disks of planets. If you look at ... more
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The source of the sky's X-ray glow
In findings that help astrophysicists understand our corner of the galaxy, an international research team has shown that the soft X-ray glow blanketing the sky comes from both inside and outside the ... more
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Australian researchers pioneer a Google street view of galaxies
A new home-grown instrument based on bundles of optical fibres is giving Australian astronomers the first 'Google street view' of the cosmos - incredibly detailed views of huge numbers of galaxies. ... more
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    Lives and Deaths of Sibling Stars
    In this striking new image from ESO's La Silla Observatory in Chile young stars huddle together against a backdrop of clouds of glowing gas and lanes of dust. The star cluster, known as NGC 3293, wo ... more
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    Mysterious dance of dwarfs may force a cosmic rethink
    The discovery that many small galaxies throughout the universe do not 'swarm' around larger ones like bees do but 'dance' in orderly disc-shaped orbits is a challenge to our understanding of how the ... more
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    Sun-like Stars Reveal Their Ages
    Defining what makes a star "Sun-like" is as difficult as defining what makes a planet "Earth-like." A solar twin should have a temperature, mass, and spectral type similar to our Sun. We also would ... more
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    Merging galaxies and droplets of starbirth
    The Universe is filled with objects springing to life, evolving and dying explosive deaths. This new image from the NASA/ESA Hubble Space Telescope captures a snapshot of some of this cosmic movemen ... more
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    Astronomers Bring The Third Dimension To A Doomed Star's Outburst
    In the middle of the 19th century, the massive binary system Eta Carinae underwent an eruption that ejected at least 10 times the sun's mass and made it the second-brightest star in the sky. Now, a ... more
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    Cosmic grains of dust formed in supernova explosion
    There are billions of stars and planets in the universe. A star is glowing sphere of gas, while planets like Earth are made up of solids. The planets are formed in dust clouds that swirled around a ... more
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    VLT clears up dusty mystery
    The origin of cosmic dust in galaxies is still a mystery [1]. Astronomers know that supernovae may be the primary source of dust, especially in the early Universe, but it is still unclear how and wh ... more
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    Perspective of the PandaX dark matter experiment
    The PandaX experiment of China, which is located in the deepest underground laboratory, has released its technical design report recently. The full article will appear in SCIENCE CHINA Physics, Mech ... more
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