Science & Environment

Earth’s day isn’t exactly 24 hours. The reason may lie deep inside the planet

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Scientists may have solved why the length of Earth’s day changes by a few milliseconds over decades. Subtle shifts in the inner core appear to tug on the mantle, revealing a surprisingly dynamic world thousands of kilometers beneath our feet.

Scientists may have solved why the length of Earth’s day changes by a few milliseconds over decades. Subtle shifts in the inner core appear to tug on the mantle, revealing a surprisingly dynamic world thousands of kilometers beneath our feet.

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Science & Environment

This giant stick insect fooled scientists for decades

Scientists have identified two new species of large Australian stick insects, including one that lays extraordinary “lidded” eggs never before recorded in the group. The discovery also revealed that a familiar stick insect had been misidentified for decades, showing how much biod

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