Concept information
Preferred term
void
Definition(s)
- A void is a large region of the universe containing few or no galaxies. The first of these voids was discovered in 1981 in the direction of the constellation Bootes by Robert Kirshner, Augustus Oemler Jr, Paul Schechter and Stephen Shectman in a survey of galactic redshifts. The so-called Bootes Void is roughly spherical and about 250 million light-years (75 megaparsecs) across, or approximately 2% of the diameter of the entire observable universe. Its center lies about 700 million light-years away. Within this cavernous expanse only 53 luminous galaxies have been detected thus far. These lonely outposts of luminous matter are confined to a roughly tube-shaped region of space that passes through the middle of the void. (Encyclopedia of Science, by David Darling, https://www.daviddarling.info/encyclopedia/V/void.html)
Broader concept(s)
In other languages
-
French
URI
http://data.loterre.fr/ark:/67375/MDL-SRL9V62L-4
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