The original: The ninth video of my weekly movie challenge was on the geysers of Yellowstone National Park.
The first follow-up: Geologists are just now finding non-intrusive ways to map the network of water reservoirs and channels that underlie Old Faithful.
The second follow-up: Geologists now think that geologic processes could recharge the Yellowstone supervolcano, which last erupted ~630,000 years ago, in decades rather than centuries. But don’t worry: Nothing seems imminent, and there’s nothing anyone can do, anyway.
