https://www.asiaone.com/world/study-shows-dinosaurs-were-struck-down-their-prime-asteroid
WASHINGTON — The age of dinosaurs ended in cataclysm one spring day 66 million years ago when an asteroid 7.5 miles (12 km) wide hit Mexico's Yucatan peninsula, triggering the extinction of those remarkable beasts and about three quarters of Earth's species. …
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