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<https://astronomy.com/magazine/weirdest-objects/2015/02/46-boomerang-nebula?utm_source=asyfb&utm_medium=social&utm_campaign=asyfb&fbclid=IwAR0m27f7eTpOk1TjJlT014NBPN6q135jzxeG2tNh9ixxiRKsIOCnDOAaFKs>