Radiolab

Navigate
Return Home

Kirk R. Johnson

Smithsonian National Museum of Natural History

Kirk R. Johnson appears in the following:

Dinopocalypse

We’ve all heard the story of what happened on the day the dinosaurs died, right? Well, we thought we had. Turns out, high-powered ballistics experiments, fancy computer algorithms, and good old-fashioned ancient geology have given us a shocking new version of the events on that day, 66 million years ago. ...

Comments [30]