A fossil site in North Dakota appears to have captured the day the dinosaur-killing asteroid struck Earth, right down to tiny glass beads from the impact lodged in the gills of fish that died within h

The site is called Tanis, in the Hell Creek Formation of southwestern North Dakota. In 2019, a team led by Robert DePalma described it as a rare snapshot of the first minutes to hours after the Chicxulub asteroid impact 66 million years ago. The most arresting detail was not a dinosaur skeleton. It was fish. […]