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Documents 15.Our galaxy A.The Milky Way. B.Spiral shape with arms C.Made up of billions of stars Our Sun just....

15. Our galaxy A. The Milky Way. B. Spiral shape with arms C. Made up of billions of stars Our Sun just being one of them. We have used hydrogen atoms to help us figure out…

Documents Chapter 16: Other Galaxies

Chapter 16: Other Galaxies WHAT DO YOU THINK? Do all galaxies have spiral arms? Are galaxies isolated objects? Are all other galaxies moving away from the Milky Way? You…