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Cosmic beginnings
Image of the Hubble Ultra Deep Field

NASA, ESA, S. Beckwith (STScI) and the HUDF Team

This view of nearly 10,000 galaxies is the deepest visible-light image of the cosmos. Called the Hubble Ultra Deep Field, this image represents a "deep" core sample of the universe, cutting across billions of light-years. The smallest, reddest galaxies may be among the most distant known, existing when the universe was just a few hundred million years old.