What Does Our Galaxy Look Like to Alien Astronomers? : compa

Alien astronomers living in another galaxy might see our Milky Way's 100 billion stars as little more than a tiny blur of light in their night sky.

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China , Germany , , Young , Max Planck Institute For Astronomy , Sloan Digital Sky Survey , Yunnan University , Milky Way , Max Planck Institute , Big Bang , Nature Astronomy , Mapping Nearby Galaxies , Apache Point Observatory , Area Velocity Explorer ,