“Eye in the sky. You're looking at the Ring Nebula, the remnant of a star that had the mass of 3 suns and exploded ~4,000 years ago. 🔭 🧪”
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“Eye in the sky. You're looking at the Ring Nebula, the remnant of a star that had the mass of 3 suns and exploded ~4,000 years ago. 🔭 🧪”
Captured 2026-08-23 from Bluesky. The archived copy is preserved so this citation survives link rot.