The universe contains trillions of galaxies, each a cosmic city

Galaxies: How Many Are There, and What’s Out There? · 5:15 · Video: Unreal Science · Watch at the source

In short: Journey through space's vastness, spanning from our local Milky Way unto the hidden boundaries of visible reality. This film investigates how galaxies are built and the evolutionary stages of such enormous entities.

The universe is populated by trillions of galaxies, which serve as vast collections of stars, gas, and dark matter. The content explores fundamental questions about galactic existence: their proximity to Earth, whether they possess a biological-like lifecycle of birth and death, and what lies at the deepest reaches of space.

By moving from our own galaxy toward the limits of observation, the video provides context on how these structures are organized within the universe's overall architecture.

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