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Big Bang in a Rain-Lashed Tent

Pale Blue Pod

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Isotropic and Homogeneous?

The universe as we observe it is both isotropic and homogeneous, which means the universe looks the same from every single point within the universe. That's why you can see the cosmic microwave background in any direction because the signal from the Big Bang is all around us. We actually have this thing in astronomy called the cosmological principle that underpins almost all of cosmology.

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