Galaxy, Definition, Formation, Types, Properties, & Facts
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Galaxy, any of the systems of stars and interstellar matter that make up the universe. Many such assemblages are so enormous that they contain hundreds of billions of stars. Virtually all galaxies appear to have been formed soon after the universe began, and they pervade all space that is viewable by modern telescopes.
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Galaxy - Wikipedia
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Galaxies. - ppt download
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Galaxies HubbleSite
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10 amazing facts about Sombrero Galaxy M104 - Orbital Today
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Galaxy, Definition, Formation, Types, Properties, & Facts
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Lenticular galaxy - Wikipedia
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Galaxy, Universe & Solar System, Overview & Differences - Lesson
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Galaxies HubbleSite
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If Telescopes Are Time Machines, the JWST Will Take Us the Furthest Back Yet, Science