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deep space

Apollo 8 Astronaut On How Crew Saw The Earth Rise, Won The Space Race And Saved Christmas Forever

deep space

deep space

Astronomers have discovered the largest known structure in the universe, a clump of active galactic cores that stretch 4 billion light-years from end to end. The structure is a light quasar group (LQG), a collection of extremely luminous Galactic Nulcei powered by supermassive central black holes.

deep space

deep space

(Credit: NASA)

deep space

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deep space

The Majestic Messier (M-104), Sombrero Galaxy. Photo courtesy of the Hubble Space Telescope, NASA.

deep space

deep space

astronomy, outer space, space, universe, stars, nebulas

deep space

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