How a microscopic metal trace in 1980 transformed the dinosaur extinction debate
TIMESOFINDIA.COM / May 26, 2026, 16:32 (IST)
A thin layer of clay in Italy, unusually rich in iridium, revolutionized the understanding of dinosaur extinction. This rare element, abundant in meteorites, pointed to a massive extraterrestrial impact as the cause, shifting scientific focus from gradual environmental changes to catastrophic events. The discovery, though initially met with skepticism, was later supported by further evidence, including the Chicxulub crater.