Friday, October 9, 2020

LRG-4-606, and a gravitational lens of an even more distant galaxy. LRG is the acronym given to a catalog of Luminous Red Galaxies found in the Sloan Digital Sky Survey (SDSS). These are mostly really massive elliptical galaxies full of huge numbers of old stars. [4000 x 3392] (Image:NASA/Hubble) via /r/spaceporn

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