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  • Image# LB0059
  • LB
  • 07/14/2016

This is one slice through the map of the large-scale structure of the Universe from the Sloan Digital Sky Survey and its Baryon Oscillation Spectroscopic Survey. Each dot in this picture indicates the position of a galaxy 6 billion years into the past. The image covers about 1/20th of the sky, a slice of the Universe 6 billion light-years wide, 4.5 billion light-years high, and 500 million light-years thick. Color indicates distance from Earth, ranging from yellow on the near side of the slice to purple on the far side. Galaxies are highly clustered, revealing superclusters and voids whose presence is seeded in the first fraction of a second after the Big Bang. This image contains 48,741 galaxies, about 3% of the full survey dataset. Grey patches are small regions without survey data. (Image credit: Daniel Eisenstein and the SDSS-III collaboration)

  • Image# LB0060
  • LB
  • 07/14/2016

The rectangle on the far left shows a cutout of 1000 sq. degrees in the sky containing nearly 120,000 galaxies, or roughly 10% of the total survey. The spectroscopic measurements of each galaxy — every dot in that cutout — transform the two-dimensional picture into a three-dimensional map, extending our view out to 7 billion years in the past. The brighter regions in this map correspond to the regions of the Universe with more galaxies and therefore more dark matter. The extra matter in those regions creates an excess gravitational pull, which makes the map a test of Einstein’s theory of gravity. (Image credit: Jeremy Tinker and the SDSS-III collaboration)

  • Image# FN0444
  • FN
  • 08/18/2014

Spiral galaxy NGC 0895 is located in the constellation Cetus, about 110 million light-years from Earth. This image was taken with the Dark Energy Camera, the primary research tool of the Dark Energy Survey, which just began its second year of cataloging deep space. (Photo: Dark Energy Survey)

  • Image# FN0443
  • FN
  • 08/18/2014

This image of the NGC 1398 galaxy was taken with the Dark Energy Camera. This galaxy lives in the Fornax cluster, roughly 65 million light-years from Earth. It is 135,000 light-years in diameter, just slightly larger than our own Milky Way galaxy, and contains more than 100 billion stars. (Credit: Dark Energy Survey)

  • Image# FN0442
  • FN
  • 08/18/2014

Stars over the Cerro Tololo Inter-American Observatory, which houses the Dark Energy Camera in Chile. (Credit: Reidar Hahn/Fermilab)

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