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Rating

★★★★★

4.8

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31 reviews

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Blue Dot, named after Carl Sagan's famous speech about our place in the universe, features interviews with guests from all over the regional, national and worldwide scientific communities. Host Dave Schlom leads discussions about the issues science is helping us address with experts who shed light on climate change, space exploration, astronomy, technology and much more. Dave asks us to remember: from deep space, we all live on a pale, blue dot.

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Check latest episodes from Blue Dot podcast

Blue Dot: California's wild and scenic Eel River and California Fly Fisher magazine

2026/04/17

Host Dave Schlom is joined by Charles Schneider, a Connectivity Program Manager for California Trout, to discuss the human and natural history of California's third-largest watershed, the Eel River.

Blue Dot: The science behind NASA's historic return to the Moon with Artemis 2

2026/04/10

Blue Dot presents a special program produced during the Artemis 2 mission to take an in-depth look at the science objectives for the historic lunar mission, which launched from the Kennedy Space Center on April 1, 2026, and flew by the Moon on April 6.

Best of Blue Dot: On the frontiers of philosophy and physics: a conversation with Caltech's Chip Sebens

2026/04/03

Host Dave Schlom is joined by California Institute of Technology Philosophy Professor Chip Sebens for an engaging look at how philosophical thought and methodology can help unravel the mysteries of modern Physics.

Best of Blue Dot: Reimagining Ag: the California State University Chico Center for Regenerative Agriculture

2026/03/27

Blue Dot goes down on the farm by visiting with folks from California State University, Chico's Center for Regenerative Agriculture and Resilient Systems (CRARS).

Best of Blue Dot: California's imperiled Delta region

2026/03/20

Blue Dot takes a deep look at issues surrounding one of the world's most diverse waterways, the California Delta.

Blue Dot: Excellence in science teaching: Caltech's Feynman award-winning Sarah Reisman

2026/03/13

Host Dave Schlom is joined by California Institute of Technology professor Sarah Reisman for an in-depth conversation about teaching one of the most difficult subjects taught on any college campus: organic chemistry.

Blue Dot: Wildlife photography with Yellowstone's Tom Murphy

2026/03/06

Host Dave Schlom is joined by nature and wildlife photographer Tom Murphy for an in-depth conversation about his life and career.

Best of Blue Dot: The anatomy of a disaster-- inside the Titan submersible implosion

2026/02/20

Gordon Telepun joins host Dave Schlom to discuss the Titan submersible implosion that killed five people, including Ocean Gate CEO and pilot Stockton Rush, in 2023.

Blue Dot: Exploring the Salish Sea and coast with the SeaDoc Society

2026/02/13

Host Dave Schlom is joined once again by Joe Gaydos and Bob Friel from the SeaDoc Society based on Orcas Island in the Pacific Northwest.

Blue Dot: Sky ghosts of the cosmos: Comets

2026/02/06

Host Dave Schlom is joined by two scientists from the SETI Institute in Mt. View, California, to talk about one of hisfavorite celestial phenomena -- comets.

Blue Dot: Good Fire as a tool for landscape and human healing

2026/01/30

Host Dave Schlom is joined by two program managers from California State University's Big Chico Creek Ecological Reserve to discuss the concept of "good fire."

Blue Dot: California's imperiled Delta region

2026/01/23

Blue Dot takes a deep look at issues surrounding one of the world's most diverse waterways, the California Delta.

Best of Blue Dot: Understanding the earthquake and tsunami hazards of California's North Coast with Lori Dengler

2026/01/16

Geology Professor Emeritus Lori Dengler joins host Dave Schlom from Cal Poly Humboldt for an in-depth look at the tectonic forces that have shaped California's North Coast.

Blue Dot: The undertold story of Project Gemini with Jeffrey Kluger

2026/01/16

Host Dave Schlom is joined by veteran space journalist Jeffrey Kluger to talk about his new book, Gemini: Stepping Stone to the Moon, The Untold Story.

Blue Dot: Britain's standing stones and prehistoric sites: a conversation with author Fiona Robertson

2026/01/02

Host Dave Schlom is joined by Fiona Robertson, author of the new book, Stone Lands: A Journey of Darkness and Light through Britain's Ancient Places (

Podcast reviews

Read Blue Dot podcast reviews

4.8 out of 5

31 reviews

★★★★★

Bryan P Quick 2025/09/11

The Merganser

One of many nicknames Mercer has gained, he is a savant on the water and always pleasant to work with. Thank you for having me on Dave. We need to fi...

★★★★★

Flying Bedstead 2022/12/03

Dee O'Hara

I totally enjoyed hearing this interview. There are many references to the astronaut's nurse in space history, and to hear her voice tell her part of ...

★★★★★

Jet Screamer0769 2022/08/13

Dee O’Hara

Another terrific episode full of great stories and insights. Having met her, she was a real treasure to the program and remains a treasure to history...

★★★★★

Jennifer Jewell 2017/05/06

Science & Curiosity: from space to pop music

Blue Dot is not just about Earth's place in space. It is about human curiosity and the drive to create. Host and creator Dave Schlom believes in the “...

★★★☆☆

amblyrhyncus 2022/05/28

Love the podcast, hate the music

The music is so jarring, I have had to give up listening. Sorry!.

★★★★★

RobertYay 2016/08/20

Smart, witty, and fun!

This has been the highlight of many weeks for me. The Blue Dot report is possibly my favorite show on the local NPR station(big ups NSPR!!), and alway...

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