Cosmos

How Far Does the Cosmos Go?

Look up at the night sky. Some of those twinkles are not stars but galaxies, each with tens or hundreds of billions of stars. Even dark parts of the sky, empty to our eyes, are bright to the Hubble Telescope, teeming with innumerable galaxies. Now with multiple universes of various kinds, how far can the cosmos go? Any estimate we give will fall far short.

 

How Far Does the Cosmos Go?

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