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Loading contentThe outer disc of the Milky Way is not flat but bent, curving up on one side and down on the other like a vinyl record left in the sun. This warp, traced by gas and by young stars, is likely stirred by the gravitational tug of the Magellanic Clouds and the dark-matter halo.
Facts on this topic will be cited from these primary and reference sources.
Mission data, planetary science, space telescopes, and public-domain imagery.
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