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Question
Like our solar system, the whole Milky Way is about five billion years old.Answer
This answer is hidden. It contains 5 characters.
Related questions
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Why is the energy source for active nuclei like Seyferts thought to be compact?
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B) Their energy appears to be non-stellar synchrotron radiation.
C) The light can vary over short time intervals.
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In active galaxies, their central engines may be temporarily fed by
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Describe the cycle of life and death we observe in the spiral arms.
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What advantage do radio astronomers have over optical ones in mapping the entire Milky Way?
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