How did this 20-light-year-wide ‘Diamond Ring’ form in space? Maybe a cosmic bubble burst "All that remained was the particular flat shape." Astrobitica November 21, 2025 (Last updated: November 21, 2025) 1 minute read “All that remained was the particular flat shape.” About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: Earth just got hit by a stealth solar storm no one saw comingNext: How Mega-Constellations Are Learning to Manage Themselves