How do you study something that’s constantly shifting? That’s the challenge that USGS geologist Richard Iverson faced when he began his career in landslide research. He and his team developed a first-of-its-kind experimental facility to study how landslides happen, in order to better understand and prepare for them.

This episode was produced by Molly Magid and mixed by Collin Warren. Illustration by Jace Steiner.