Boötes Void

The Boötes Void (/boʊˈoʊtiːz/ boh-OH-teez) (colloquially referred to as the Great Nothing) is a roughly spherical region of space in the vicinity of the constellation Boötes. It contains just 60 galaxies, a figure significantly lower than the approximately 2,000 galaxies expected for an area of comparable size. With a radius of 62 megaparsecs (nearly 330 million light-years), it is one of the largest voids in the visible universe, and is often referred to as a "supervoid".

It was discovered in 1981 by astronomer Robert Kirshner as part of a survey of galactic redshift. Its centre is located 700 million light-years from Earth, at right ascension 14h 50m and declination 46°.

The Hercules Superclusters are part of the near edge of the void.

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