Hubble Image of Galaxies (IMAGE)
Caption
Entangled among the galaxies in this Hubble image are mysterious-looking arcs of blue light. These are actually distorted images of remote galaxies behind the cluster. The collective gravity of all the normal and dark matter trapped inside the cluster warps space-time and affects light traveling through the cluster toward Earth.
Credit
NASA, ESA, and J. Lotz and the HFF Team (STScI)
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License
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