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Newly-Discovered Arm of Milky Way Gives Warped Structure 81

eldavojohn writes "Researchers are now suggesting that a newly-discovered arm of the Milky Way Galaxy gives it a warped structure. Accumulated evidence leads them to claim that an 18-kpc-long arm exists on the other side of the galaxy and this arm traverses some 50 degrees across our sky as an extension of the Scutum-Centaurus Arm (which is one of the two major arms of our galaxy, the other being the Perseus Arm that we can see much more clearly). The researchers conclude that this extension of the Scutum-Centaurus Arm is partially obscured behind the middle of our galaxy because our galaxy is warped 'like the cap from a freshly-opened beer bottle.'"

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