Sloan Digital Sky Survey: You are Here

This Sloan Digital Sky Survey map of the universe is 2 billion light-years deep. Each point represents a galaxy with a measured redshift. Maps like this have revealed the signature of enormous sound waves rippling through the early universe. Courtesy Sloan Digital Sky Survey.

(text and picture from Sky and Telescope, January 12, 2005)

You are here. Approximate scale 1″ = 1 billion light years. Map may not be suitable for navigational purposes. Objects may be further away than they appear.

Sloan Digital Sky Survey

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