supervoid - definition and synonyms

noun astronomy
  1.   From our crowdsourced Open Dictionary
    a very large void (=area of space containing few or no galazies) that contains no superclusters (=large groups of galaxies)

    The 'supervoid', which is 1.8 billion light-years across, is the largest known structure ever discovered in the universe but scientists are baffled about what it is and why it is so barren.

    Submitted from United Kingdom on 27/04/2015