The Eruption That Froze Pompeii Is Helping Scientists Measure Time Itself

A nearly 2,000-year-old volcanic disaster is helping scientists refine the clocks used to reconstruct Earth’s history. Nearly 2,000 years after Mount Vesuvius buried Pompeii, the eruption is serving as a calibration point for one of geology’s most widely used dating methods. The key is that the disaster occurred within recorded history. Pliny the Younger described [...]