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Ask Ethan: Could we spot an extinction-level asteroid?

65 million years ago, a massive asteroid struck Earth, causing a mass extinction. Without advance wa...

SCIENCE July 03, 2026

Ask Ethan: Could we spot an extinction-level asteroid?

65 million years ago, a massive asteroid struck Earth, causing a mass extinction. Without advance warning, could anyone have spotted it?

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65 million years ago, a massive asteroid struck Earth, causing a mass extinction. Without advance warning, could anyone have spotted it?

Author: Big Think

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RAW: FILE: SCIENTISTS WANT TO DIAL DOWN EFFECTS OF EL NINOS

RAW: FILE: SCIENTISTS WANT TO DIAL DOWN EFFECTS OF EL NINOS

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RAW: FILE: SCIENTISTS WANT TO DIAL DOWN EFFECTS OF EL NINOS

RAW: FILE: SCIENTISTS WANT TO DIAL DOWN EFFECTS OF EL NINOS