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Much ado about (almost) nothing ?

  1. Apr 21, 2015 #1
    Astronomers discover largest known structure in the universe is ... a big hole.

    Scientists searching for an explanation for an unusually cool area of sky instead discovered a supervoid: an empty spherical blob 1.8 billion light years across

    Hannah Devlin, science correspondent. UK Guardian
    @hannahdev Monday 20 April 2015 12.22 EDT

    Astronomers have discovered what they say is the largest known structure in the universe: an incredibly big hole.

    The “supervoid”, as it is known, is a spherical blob 1.8 billion light years across that is distinguished by its unusual emptiness.

    István Szapudi, who led the work at the University of Hawaii at Manoa, described the object as possibly “the largest individual structure ever identified by humanity”.

    Its existence only emerged thanks to a targeted astronomical survey, which confirmed that around 10,000 galaxies were “missing” from the part of the sky it sits in.

    [article continues].....




  2. jcsd
  3. Apr 21, 2015 #2


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    Detection of a Supervoid Aligned with the Cold Spot of the Cosmic Microwave Background
    István Szapudi et al.
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