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Why do astronomers use AU

Galaxy Formation Quiz3 of 73 of 7 Items Question How do astronomers know about the future collision of Andromeda and the Milky
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How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point)Responses Astronomers have observed
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2. asked by Ben
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How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point)Responses Astronomers have observed
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2. asked by hello
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How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point)Responses The two galaxies have
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How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point) Responses Astronomers have observed
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How do astronomers know about the future collision of Andromeda and the Milky Way?(1 point) Responses Astronomers have observed
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Research different aspects of astronomy. Investigate the following:methods used to study the universe in both ancient times and
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The new moon allows astronomers to observe the stars better. How many days will the astronomers have to wait for the new moon if
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Special telescopes, such as the Chandra x-ray Telescope, help astronomers see different kinds of electromagnetic radiation
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2. asked by layla
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Special telescopes, such as the Chandra x-ray Telescope, help astronomers see different kinds of electromagnetic radiation
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