Deep Time

Episodes

TTBOOK and Center for Humans and Nature present Deep Time

When you’re on the clock, you’re always running out of time. The relentless countdown is making us and the planet sick. But clock time isn’t the only kind. There are older, deeper rhythms of natural time.  We just forgot how to listen.More

TTBOOK and CHN present Deep Time

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

Deep Time: The Cosmos and Us

What is this thing, that’s all around us, invisible, inescapable, always running out? What is time?More

The longest nights of the year are here. How many of us will see them? When light pollution is making it harder to experience natural darkness, learning how to reconnect with the planet’s ancient nocturnal rhythms can be profoundly restorative.More

Interviews from this series

Audio

Physicist Carlo Rovelli travels to the core of a black hole, where the arrow of time reverses and a white hole is born.   More

Articles

Marjolijn van Heemstra is the poet laureate of Amsterdam. As her anxiety about climate change and other problems ratcheted up, she found solace in the larger cosmos and became a "dark sky" activist.More

Audio

Time may be a fundamental quality of the universe, but physicists still can't explain what time is. That hasn't stopped theoretical physicist Marcelo Gleiser from devoting much of his life to studying the origins of time and the formation of the cosmos.More

Audio

Dustin Mater is a Chickasaw artist who's fascinated by ancient rock art. He says these images resonate with stories he heard from tribal elders, which he uses as inspiration for his own art.  More

Photo Gallery

Stephen Alvarez — a National Geographic photographer and founder of the Ancient Art Archive — has spent years documenting ancient rock art around the world. He takes Steve Paulson on a long hike in the Cumberland Plateau, where they find an "unnamed cave" with 2,000-year old engravings.More

Articles

Geologist Marcia Bjornerud has a profound understanding of Earth's deep history. The author of "Timefulness," she says geologic literacy would give us a much healthier sense of time. More

David Rooney.
Audio

Clocks control us – but who controls clocks? David Rooney gives us a brief political history of clocks. And a look at their future.More

Jenny Odell
Articles

Lately it’s been feeling like time is speeding up.  Whether it’s the news cycle, social media, the information economy or global warming, the pace of life is accelerating beyond what many of us can handle. Jenny Odell blames the clock. More

To The Best Of Our Knowledge
Audio

Do physicists think about End Times? Noted string theorist Brian Greene does. He looks into the far future - billions of years from now - and sees a very dark universe.More

To The Best Of Our Knowledge
Audio

Brian Greene is a physicist who specializes in string theory. Greene says that time appears to move in one direction only to complex organisms like people. At the atomic level, electrons don’t know one direction from another.More

What would you do if you had all the time in the world?

TTBOOK and the Center for Humans and Nature present Deep Time

About To The Best Of Our Knowledge

”To the Best of Our Knowledge” is a Peabody award-winning national public radio show that explores big ideas and beautiful questions. Deep interviews with philosophers, writers, artists, scientists, historians, and others help listeners find new sources of meaning, purpose, and wonder in daily life. Whether it’s about bees, poetry, skin, or psychedelics, every episode is an intimate, sound-rich journey into open-minded, open-hearted conversations. Warm and engaging, TTBOOK helps listeners feel less alone and more connected – to our common humanity and to the world we share. Learn more about the show here.

About The Center for Humans and Nature

The Center for Humans and Nature is a 501c3 nonprofit organization, publisher, forum, and place to explore, connect, and nurture our understandings of and responsibilities to the natural world. They share ideas that foster curiosity, build community, and inspire action. Their work provides in-depth and diverse perspectives about what it means to be human in an interconnected world. To learn more about what they do, visit their website.