James Turrell discusses his ongoing land art piece, Roden Crater, created within a pit formed by an extinct volcano in the Arizona desert. ART21: Where are we, right now? TURRELL: Well, right now ...

The crater has undergone at least one glaciation event since it formed, meaning it was swallowed by an ice sheet when glaciers last covered southwestern Alaska between 23,000 and 14,700 years ago.

From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or ...