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See how controls, measurement, uncertainty, and replication turn questions into reliable evidence.
A new observation-based constraint indicates that the North Pacific storm corridor has moved north and that climate models underestimate its recent shift.
A 2,800-meter core from Little Dome C may extend the continuous ice-core climate record by 400,000 years and capture a major change in Earth's glacial rhythm.
Bell inequalities gave experimental physics a way to distinguish quantum predictions from an important family of local hidden-variable explanations.