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Large quasar group

Large astronomical structure

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CMB Images IMAGES > CMB IMAGES > NINE YEAR MICROWAVE SKY http://map.gsfc.nasa.gov/media/121238/index.html Nine Year Microwave Sky The detailed, all-sky picture of the infant universe created fro
NASA / WMAP Science Team · Public domain

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Prominent LQGs

On January 11, 2013, the discovery of the Huge-LQG was announced by the University of Central Lancashire, as the largest known structure in the universe by that time. It is composed of 74 quasars and has a minimum diameter of 1.4 billion light-years, but over 4 billion light-years at its widest point. According to researcher and author, Roger Clowes, the existence of structures with the size of LQGs was believed theoretically impossible. Cosmological structures had been believed to have a size limit of approximately 1.2 billion light-years.

Other scientists have expressed doubt whether these structures really exist.

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