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This supernova impostor baffled astronomers for 15 years — until This supernova imposter erupts every 113 days as the compact object gets close to the unstable massive star.
This supernova imposter erupts every 113 days as the compact object gets close to the unstable massive star.

This supernova impostor baffled astronomers for 15 years — until This supernova imposter erupts every 113 days as the compact object gets close to the unstable massive star. This supernova imposter erupts every 113 days as the compact object gets close to the unstable massive star.
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