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[[File:lighterstill.jpg]]

In [[physical]] [[cosmology]], the '''large-scale structure''' of the [[universe]] refers to the characterization of [[observable]] [[distributions]] of [[matter]] and [[light]] on the largest scales (typically on the order of billions of l[[ight-years]]). Sky surveys and mappings of the various [http://en.wikipedia.org/wiki/Wavelength wavelength bands] of [http://en.wikipedia.org/wiki/Electromagnetic_radiation electromagnetic radiation] (in particular 21-cm emission) have yielded much [[information]] on the [[content]] and [[character]] of the universe's [[structure]]. The [[organization]] of structure appears to follow as a [[hierarchical]] model with organization up to the scale of [[superclusters]] and filaments. Larger than this, there seems to be no continued structure, a [[phenomenon]] which has been referred to as the ''End of Greatness''.

In [[physical]] [[cosmology]], the '''large-scale structure''' of the [[universe]] refers to the characterization of [[observable]] [[distributions]] of [[matter]] and [[light]] on the largest scales (typically on the order of billions of [[light-years]]). Sky surveys and mappings of the various [http://en.wikipedia.org/wiki/Wavelength wavelength bands] of [http://en.wikipedia.org/wiki/Electromagnetic_radiation electromagnetic radiation] (in particular 21-cm emission) have yielded much [[information]] on the [[content]] and [[character]] of the universe's [[structure]]. The [[organization]] of structure appears to follow as a [[hierarchical]] model with organization up to the scale of [[superclusters]] and filaments. Larger than this, there seems to be no continued structure, a [[phenomenon]] which has been referred to as the ''End of Greatness''.

[[File:Universe_Reference_Map700.jpg|center|frame]]

[[File:Universe_Reference_Map700.jpg|center|frame]]