Dossier
CO chondrite
Coverage of CO chondrite in the Nexus archive.
- Scientists identify the rare meteorite that killed the dinosaurs 66 million years ago
Scientists identified a rare CO chondrite asteroid from a distant solar system region as the likely cause of the dinosaur extinction 66 million years ago. The asteroid's unusual chemistry suggests that planet-cooling dust and debris, rather than sulfur, contributed to the mass extinction.