Astronomers hope to further understand dark matter with a recent finding of a rare double Einstein ring.
Four scientists made the discovery using the Hubble telescope. The scientists realized just how much of a rarity the item is after spotting it.
"A double Einstein ring is the appearance of two glowing broad circles (rings) in front of a galaxy, caused by the gravitational lensing of two galaxies directly behind it."
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"That is, a pair of glowing rings, one inside the other, was formed because light from the two more distant galaxies is bending around the closest galaxy."