A massive cluster of galaxies called Abell 2218. This cluster is in the constellation Draco, and is 2 billion light-years from Earth. The arcs oflight are the light of very distant galaxies being focussed by the enormous gravity of the cluster, an effect known as gravitational lensing. . Image source NASA/ESA Hubble Space Telescope

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Image source NASA/ESA Hubble Space Telescope

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Photo credit: © CBW / Alamy / Afripics
License: Licensed
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Keywords: 2218, abell, astrophotography, cluster, deep, depth, distance, galactic, galaxies, gravitational, hst, hubble, infinite, infinity, lensing, mysteries, mysterious, mystery, nasa, space, stars, telescope, wonders