What is a "morning star," and what is an "evening star"? Aren't they all planets? Can a planet sometimes be both of those things, or neither? Here's the complete guide for understanding these stargazing terms.
What is a "morning star," and what is an "evening star"? Aren't they all planets? Can a planet sometimes be both of those things, or neither? Here's the complete guide for understanding these stargazing terms.
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