Ancient astronomers used 'epicycles' to describe
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Ancient Greeks believed the earth to be the center of the universe. This model is known as?
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A long period comet is a comet with a period of 200 years or more.
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________ is the outcome of mass distorting the fabric of spacetime.
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Which one is inferred by Hubble's law?
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Which one are the Jovian planets?
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Open clusters comprise mostly
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An eclipse that happens when the moon passes into Earth's total shadow, or umbra.
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When the heart of a star shrinks after hydrogen fusion ends
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A massive star transforms into a red supergiant, then either a black hole or a neutron star, and then a supernova.
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Best Astronomy For Space Enthusiasts
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