Our walking journey in the footsteps of Dorothy Day begins in Union Square in New York City, where the first Catholic Worker newspaper was distributed in 1933, and continues to St. Francis Xavier Church, where a tapestry of Day looks over all who walk through the doors.

At Manhattan University and on the Staten Island ferry, the “Dorothy Day,” theologian Kevin Ahern and George Horton and Carolyn Zablotny, who are all working toward Day’s canonization, talk with Shannon about the future of the Catholic Church and what it means to be a saint.

The debate among cartographers today is about which is better — a paper map, or a digital one? Cartographer Mamata Akella argues that there are merits and downsides to both.

Uzbekistani electronic musician Andrew Pekler is fascinated by "phantom islands" — islands that 15th and 16th century explorers made up to please wealthy patrons of their expeditions. So, he built an digital map of them, and added a soundtrack.

A group of scientists, philosophers and writers discuss and debate the many different kinds of “intelligence” — and why we’re still grappling with our understanding of sentience in plants, animals and AI. Is a robot dog actually smart?

Astrophysicist Adam Frank says there’s an emerging science of “planetary intelligence,” which regards the Earth itself as sentient. It’s a radical idea, with far-reaching implications, and it may just help save the planet. 

Scientists at Project CETI exploring the sounds of whales have found a “sperm whale phonetic alphabet.” Carl Zimmer, author and science writer for The New York Times, puts the latest whale communications research and news into perspective.

Marine biologist Shane Gero has spent decades listening to whale conversations. Through Project CETI, he’s found recent success using technologies like artificial intelligence to better understand what whales are saying. 

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.

During their visit to Addis Ababa, Anne and Steve caught a show put on by a household name in Ethiopia — the boundary-crossing, border-hopping jazz virtuoso Meklit Hadero.

Political repression and censorship forced a generation of Black jazz musicians out of South Africa and into clubs in Europe and the US. But jazz critic Gwen Ansell says some musicians remained, and they left a legacy of unforgettable music.

Drew Gilpin Faust, historian and author of “The Republic of Suffering,” draws compelling parallels between the grief experienced after the American Civil War and the mourning process following the COVID-19 pandemic.

“Bad River” is Mary Mazzio’s documentary about a small tribe, the Bad River band of Lake Superior Chippewa, and their legal battle to get rid of an oil pipeline. She examines the conflicting ideas we have about how to live on the land and even whether it can be owned.

Jessi Kneeland, a fitness trainer turned body neutrality coach, suggests that aiming for a neutral stance toward one's body — rather than unconditional love — might be more realistic and attainable for many of us.