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By what process does the Sun generate energy?
Q16: According to the inverse square law of
Q27: It is very cold, but otherwise comfortable.
Q48: If Jupiter were 10 times more massive,
Q49: How can we measure the strength of
Q69: The Earth is about 150 million km
Q76: Which star cluster is the youngest star
Q83: A 10 solar mass star is about
Q106: What is the most abundant molecule in
Q115: A typical meteor is created by a
Q164: There are no auroras on Venus because