How galaxies change the look of the universe

Update: 2015-09-02

Description

Galaxy evolution shows a dramatic drop in the ratio of spiral to elliptical galaxies. Also; astronomers find a nearby quasar powered by two supermassive black holes, and red sprites at night prove to be an astronaut's delight.

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In Channel

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How galaxies change the look of the universe

#box-pro-ellipsis-176141430151421{-webkit-line-clamp:2;}How galaxies change the look of the universe

How galaxies change the look of the universe

How galaxies change the look of the universe