February 14, 2009 24/7 News Coverage our time will build eternity
Stars Cheek By Jowl In The Early Universe
London, UK (SPX) Feb 13, 2009
In our Galaxy, we are used to the idea that even the nearest stars are light years away from the Sun. But a team of scientists led by Professor Pavel Kroupa of the University of Bonn think things were very different in the early Universe. In particular, Ultra Compact Dwarf galaxies (UCDs), a recently discovered class of object, may have had stars packed together a thousand times more close ... read more

Gamma-ray Flare Star
Huntsville AL (SPX) Feb 11, 2009
NASA's Swift and Fermi spacecraft are monitoring a neutron star 30,000 light years from Earth that is drawing attention to itself with a series of powerful gamma-ray flares. "At times, this remarkable object has erupted with more than a hundred flares in as little as 20 minutes," said Loredana Vetere, who is coordinating the Swift observations at Pennsylvania State University. "The most in ... more

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  • First Lab Experiment To Accurately Model Stellar Jets Explains Mysterious Knots
    Rochester NY (SPX) Feb 11, 2009
    Some of the most breathtaking objects in the cosmos are the jets of matter streaming out of stars, but astrophysicists have long been at a loss to explain how these jets achieve their varied shapes. Now, laboratory research detailed in the current issue of Astrophysical Review Letters shows how magnetic forces shape these stellar jets. ... more

    Astronomers Spot Cosmic Dust Fountain
    Chicago IL (SPX) Feb 10, 2009
    Space dust annoys astronomers just as much as the household variety when it interferes with their observations of distant stars. And yet space dust also poses one of the great mysteries of astronomy. "We not only do not know what the stuff is, but we do not know where it is made or how it gets into space," said Donald York, the Horace B. Horton Professor in Astronomy and Astrophysics at ... more

    How We See Dark Matter
    Pasadena CA (SPX) Feb 04, 2009
    Planets, stars, buildings, cars, you and I, we are all made of the same basic stuff - atoms, the building blocks of matter. The late Carl Sagan famously said "we are star stuff," as the heavy elements in our bodies were all forged in supernovas, the explosions of dying stars. In a real scientific sense, we are one with everything we see in the night sky. We have since learned that everythi ... more

    Subaru Head Count Of Low-Mass Stars In W3 Main
    Tokto, Japan (SPX) Feb 03, 2009
    The number of stars in the Universe is staggering. Because there are billions of stars in each galaxy and there are billions of galaxies, the total number is hard to comprehend. When astronomers at the Subaru Telescope think about this colossal number of stars, questions come to their minds that include, what is the population distribution of these stars in terms of the weight? How many ... more

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  • Subaru Head Count Of Low-Mass Stars In W3 Main

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  • Cosmic Rays Reveal Upper Atmosphere Secrets
    Washington DC (SPX) Jan 23, 2009
    Cosmic-rays detected half a mile underground in a disused U.S. iron-mine can be used to detect major weather events occurring 20 miles up in the Earth's upper atmosphere, a new study has revealed. Published in the journal Geophysical Research Letters and led by scientists from the UK's National Centre for Atmospheric Science (NCAS) and the Science and Technology Facilities Council (STFC) ... more

    Frantic Activity Revealed In Dusty Stellar Factories
    La Silla, Chile (ESO) Jan 22, 2009
    Thanks to the Very Large Telescope's acute and powerful near-infrared eye, astronomers have uncovered a host of new young, massive and dusty stellar nurseries in nearby galaxy NGC 253. The centre of this galaxy appears to harbour a twin of our own Milky Way's supermassive black hole. Astronomers from the Instituto de Astrof´┐Żsica de Canarias (Spain) used NACO, a sharp-eyed adaptive optics i ... more

    First Light Curve Analysis Of 20 Eclipsing Binaries With Integral OMC
    Paris, France (ESA) Jan 20, 2009
    Photometric data gathered by Integral's Optical Monitoring Camera (OMC) has been used to study selected eclipsing binary stars for which the light curve had hitherto not been analyzed. This recent study by Petr Zasche from the Astronomical Institute in Prague provides new key information on the basic properties of these binary systems - properties that were previously not known or only ... more

    Astronomers From Princeton And Japan Unite To Explore The Universe, Near And Far
    Princeton NJ (SPX) Jan 19, 2009
    Scientists from Princeton University and the National Astronomical Observatory of Japan have agreed to collaborate over the next 10 years, using new instrumentation on the Hawaii-based Subaru Telescope to peer into hidden corners of the nearby universe and ferret out secrets from its distant past. The partnership, called the NAOJ-Princeton Astrophysics Collaboration or N-PAC, will ... more

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