n. an expert in the science of the heavenly bodies and of their sizes and motions and composition
Astronomers are scientists who study the universe.
Astronomers are scientists who study the universe.
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What causes astronomers to be unable to see all the constellations all the time?
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The astronomers observed the aurora borealis.
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The astronomers analyzed the stars' spectra.
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Where did the ancient astronomers get the names for the constellations?
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What can astronomers determine by studying the light and other radiation from the stars?
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What have astronomers spotted in the Orion Nebula?
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Some astronomers argue that Pluto is not a planet.
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stargazer;astrophysicist; star scientist
geologist
1 syllables
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