Gravitational Lens Creates Cartoon of Space Invader
5 Mar 2013, 14:00 UTC
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The universe is eerie enough without giving us an apparition of a 1980s
video game alien attacker. This oddball-looking object is really a mirage
created by the gravitational field of a foreground cluster of galaxies
warping space and distorting the background images of more distant
galaxies.
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