1. Astronomers use Hubble Space Telescope to study bursts of star formation in the dwarf galaxies of the early Universe GOODNEWS.WS


    from good news Added 3 0 0

    http://goodnews.ws/ Hubblecast 75: Dwarf Galaxies that Pack a Punch. This new Hubblecast episode looks at starburst dwarf galaxies in a time when most of the stars in the Universe were formed. New NASA/ESA Hubble Space Telescope observations show that dwarf galaxies played a bigger role than expected in the early history of the Universe. This episode looks at the dwarf galaxies that form stars in sudden bursts, explores just how rampantly they are creating new stars and unravels when, where and how the stars in our Universe formed. Credit:ESA/Hubble Directed by: Georgia Bladon Visual design and editing: Martin Kornmesser Written by: Georgia Bladon Narration: Sara Mendes da Costa Images: NASA, ESA Videos: NASA, ESA Animation: Martin Kornmesser & Luis Calcada Galaxy Collision (6:39): Patrik Jonsson, Greg Novak & Joel Primack (UC Santa Cruz, USA) Music: Johan B. Monell (www.johanmonell.com) Web and technical support: Mathias Andre and Raquel Yumi Shida Executive producer: Lars Lindberg Christensen Small but significant. Astronomers use Hubble Space Telescope to study bursts of star formation in the dwarf galaxies of the early Universe WWW.GOODNEWS.WS http://goodnews.ws/

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    • Comparing APEX and ALMA views of star-forming galaxies in the early Universe


      from ESO Observatory Added 52 0 0

      A team of astronomers has used ALMA (the Atacama Large Millimeter/submillimeter Array) to pinpoint the locations of over 100 of the most fertile star-forming galaxies in the early Universe. The best map so far of these distant dusty galaxies was made using the Atacama Pathfinder Experiment (APEX), but the observations were not sharp enough to unambiguously identify these galaxies in images at other wavelengths. ALMA needed just two minutes per galaxy to pinpoint each one within a comparatively tiny region 200 times smaller than the broad APEX blobs, and with three times the sensitivity. This video zooms in on some of the galaxies. The large red blobs are the earlier APEX observations and the much sharper views are from ALMA. Whereas the APEX images were not sharp enough to identify the emitting galaxies unambiguously the much sharper ALMA images can pin down the emitting galaxies much more precisely. The ALMA and APEX observations, at submillimetre wavelengths, are overlaid on an infrared view of the region as seen by the IRAC camera on the Spitzer Space Telescope (coloured blue). More information and download-options: http://www.eso.org/public/videos/eso1318b/ Credit: ALMA (ESO/NAOJ/NRAO), APEX (MPIfR/ESO/OSO), J. Hodge et al., A. Weiss et al., NASA Spitzer Science Center

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      • Low Res Simulation of The Early Universe


        from jake downs Added 62 2 0

        Made this by following this tutorial: http://www.youtube.com/watch?v=pQiKBM9rDoM Next I want to try to do a 3D one in cinema 4D, closer to: http://www.youtube.com/watch?v=zLSe7RxtJ4o I love watching the particles dance together. Whipping around and attracting other clusters. I want to get the tails to spread out more like real galaxies, and get the gravity a little more realistic.

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        • Talk on 30 July 2011 by Dr Hiranya Peiris on 'Fingerprints of the Early Universe'


          from Society for Popular Astronomy Added 271 0 0

          How can we find out what happened at the start of the Universe, over 13 billion years ago? Dr Hiranya Peiris, Lecturer in Cosmology at University College London, describes the observational methods that are used, and how our knowledge may improve in the future.

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