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The Role of Dark Matter and Dark Energy in the Formation of Supermassive Black Holes
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What is the primary evidence for the existence of dark matter?
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A
The rotation curves of galaxies
💡 Explanation:
The rotation curves of galaxies show that the stars in the outer regions of galaxies are moving faster than expected based on the visible mass of the galaxy. This suggests that there is a large amount of unseen mass, or dark matter, that is responsible for the extra gravity.