Galaxy Cluster Abell 2218. The mass from the galaxies and their dark matter halos creates a “gravitational lens”. Every galaxy that appears as a smudge is actually behind the cluster, but the sheer immensity of the gravity created by the cluster bends the light from the background galaxies and allows us to see them as arcs within the cluster.

Galaxy Cluster Abell 2218. The mass from the galaxies and their dark matter halos creates a “gravitational lens”. Every galaxy that appears as a smudge is actually behind the cluster, but the sheer immensity of the gravity created by the cluster bends the light from the background galaxies and allows us to see them as arcs within the cluster.

  1. samstercat reblogged this from get-spaced
  2. saangel reblogged this from get-spaced and added:
    Actually doesn’t bend the light but the path that the light travels.
  3. dads-n-blunts reblogged this from get-spaced and added:
    holy SHIT
  4. thefairiesscareme reblogged this from scurvbird and added:
    You know what scares me the most? The fact that we really know NOTHING outside out own planet. The universe is a...
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