File:Gravitational Lensing Graphic - PIA23641.tiff

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English: This graphic illustrates how a faraway quasar (an extremely bright region in the center of some distant galaxies) is altered by a massive foreground galaxy. The galaxy's powerful gravity warps and magnifies the quasar's light, producing four distorted images of the quasar.

Dark matter is an invisible substance that makes up the bulk of the universe's mass and creates the scaffolding upon which galaxies are built.

Quadruple images of a quasar rare because the background quasar and foreground galaxy require an almost perfect alignment.
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Source PIA23641
Author JPL

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Date/TimeThumbnailDimensionsUserComment
current12:03, 21 January 2020Thumbnail for version as of 12:03, 21 January 20204,096 × 2,160 (12.83 MB)Junior Jumper (talk | contribs){{Information |description ={{en|1=This graphic illustrates how a faraway quasar (an extremely bright region in the center of some distant galaxies) is altered by a massive foreground galaxy. The galaxy's powerful gravity warps and magnifies the quasar's light, producing four distorted images of the quasar. Dark matter is an invisible substance that makes up the bulk of the universe's mass and creates the scaffolding upon which galaxies are built. Quadruple images of a quasar rare because...

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