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    Baryon Oscillation Spectroscopic Survey (BOSS) tagged posts

    Dark Energy measured with Record-breaking 3D Map of 1.2 million Galaxies

    July 15, 2016, Categories  Astronomy/Space

    The Sloan Digital Sky Survey and its Baryon Oscillation Spectroscopic Survey has transformed a two-dimensional image of the sky (left panel) into a three-dimensional map spanning distances of billions of light years, shown here from two perspectives (middle and right panels). This map includes 120,000 galaxies over 10% of the survey area. The brighter regions correspond to the regions of the Universe with more galaxies and therefore more dark matter. Credit: Jeremy Tinker and SDSS-III

    The Sloan Digital Sky Survey and its Baryon Oscillation Spectroscopic Survey has transformed a two-dimensional image of the sky (left panel) into a three-dimensional map spanning distances of billions of light years, shown here from two perspectives (middle and right panels). This map includes 120,000 galaxies over 10% of the survey area. The brighter regions correspond to the regions of the Universe with more galaxies and therefore more dark matter. Credit: Jeremy Tinker and SDSS-III

    A team of hundreds of physicists and astronomers constructed a 3D map to make one of the most precise measurements yet of the dark energy currently driving the accelerated expansion of the Universe. “We have spent 5 years collecting measurements of 1...

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