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Our Galaxy forms a disc a little thicker in the center that is observed in profile, which is why the

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We must try to understand that the universe is something really gigantic, bigger than anything you can imagine! Even researchers

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As the galaxies get closer to each other, they can collide. But as you can see by observing the stars

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Galaxies contain tens or hundreds of billions of stars like the Sun and all this mass attracts nearby galaxies. They