Deep Time: How Earth Keeps Time

Are you ready to think in centuries instead of seconds? Eons instead of hours? It’s time to make thousand-year plans and appreciate how Earth keeps time.

For more from this series, visit ttbook.org/deeptime.

Original Air Date: August 19, 2023

Interviews In This Hour:

Shifting your mind to 'geologic' time — Discovering the wonders of ancient cave art — Making art inspired by the ancestors

Guests:

Marcia Bjornerud, Stephen Alvarez, Dustin Illetewahke Mater

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