What do astronomers mean when they say that the universe is isotropic?
A) Faraway parts of the universe look just like nearby parts.
B) All galaxies are spiral galaxies like our own.
C) Intergalactic gas has the same density everywhere in the universe.
D) The laws of physics are different in different places in the universe.
E) The universe looks the same no matter what direction you look.
Correct Answer:
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