MILKY WAY AND BEYOND: Understanding Our Place in the Universe's Vast Galaxy Network | Documentary 

MILKY WAY AND BEYOND: Understanding Our Place in the Universe's Vast Galaxy Network
Galaxies - islands of stars in the cosmos. They form groups, clusters, and superclusters. And they merge with one another. Even our home galaxy, the Milky Way, is part of such a larger structure. Today, researchers estimate that in the visible universe, there are about two trillion galaxies, each with around 100 billion stars. How galaxies are formed, how they interact with each other, and how the cosmic web came into being are central questions of modern astrophysics.
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