Is the Universe Really Expanding? If So,how Do We Describe

question 55

Multiple Choice

Is the universe really expanding? If so,how do we describe the expansion?

• A) It is not expanding-it is our local space that is getting smaller as we fall into a supermassive black hole,making the universe seem bigger and bigger.
• B) Space itself is expanding,carrying the galaxies (or superclusters of galaxies)with it.
• C) An infinitely small but infinitely dense clump of matter exploded,sending the galaxies (or superclusters of galaxies)hurtling out through space.
• D) The energy from all the stars is heating the universe,making it expand like a gas that is heated.

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