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doit_the_clown doit_the_clown
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7 years ago
How does Mercury rotate, relative to the Sun?
A)   Mercury rotates relatively quickly, so that a solar day (from sunrise to the next sunrise) on Mercury is just a bit shorter than on the Earth.
B)   Mercury rotates in a retrograde direction; consequently, the Sun rises in the west each day and sets in the east.
C)   Mercury turns the same side (Caloris Basin) toward the Sun at all times, much as the Moon always turns the same side toward the Earth.
D)   Mercury alternately turns one side (Caloris Basin) toward the Sun at one perihelion and the opposite side toward the Sun at the next perihelion.
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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