I see art as a medium of encounter. Not just with nature, but with forces greater than ourselves,” the artist told Observer.

That’s the idea of the life-affirming Netflix documentary Live to 100: Secrets of the Blue Zones, which explores the habits of people living in regions with the highest concentrations of centenarians.

The dominant rock type in the Yellowstone region is rhyolite, and that is very rich in silica. As hot water circulates underground, it can dissolve that silica and bring it to the surface, where it is ...