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Solar wind particles hit the surface of the Moon, but they don't make it to the surface of the Earth because the Earth
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Q5: A star's location on the main sequence
Q18: Why do main-sequence high-mass stars lose so
Q19: What type of star is most common
Q42: What is the reason for the very
Q50: What should be true about the oldest
Q51: We still use Newton's law of gravitation,
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Q82: The collapse of the core of a