Bering Land Bridge National Preserve

Behind gravel berms on Alaska's Chukchi coast, lagoons that open and close with storms and ice feed fish, birds and Iñupiat families. How the NPS and partners monitor them, and what they still want to learn.

Volcanologist Erika Rader's first thought about visual near-infrared spectroscopy equipment was, "I don't understand this and therefore I don't believe it works, but planetary scientists use it a lot so maybe I should give it a think." Soon after, she wanted to share the technology with others.