Ring Nebula’s Mysterious Iron Bar Stuns Astronomers
The Iron Filament of the Ring Nebula: A Harbinger of Interstellar Archaeology? Nearly 2.3 light-years away, the Ring Nebula is one of the most iconic celestial objects, a vibrant testament to the death of a sun-like star. But a newly discovered, remarkably straight “iron bar” slicing through its heart isn’t a typical feature of planetary … Read more