Shapley Supercluster

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

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Science and technology

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What Wikipedia says

The Shapley Supercluster or Shapley Concentration (SCl 124) is one of the largest concentrations of galaxies in the observable universe that forms a bound, gravitationally interacting unit, thereby pulling itself together instead of expanding with the universe.

Excerpt from the Wikipedia article “Shapley Supercluster”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Richard Powell, CC BY 2.5, via Wikimedia Commons.