Mysterious iron 'bar' discovered in famous nebula - Phys.org

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1. Mysterious iron 'bar' discovered in famous nebula  Phys.org
2. Astronomers discover an enormous iron bar in the famous Ring Nebula: 'We definitely need to know more'  Space
3. Cardiff University team helps find mysterious iron bar in space  BBC
4. Astronomers Spot Mysterious Bar-Shaped Cloud of Iron Inside an Iconic Nebula  Scientific American
5. Astronomers spot mysterious 'iron bar' in well-known Ring Nebula  Reuters

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