
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: ... more
| Publishes | Weekly | Episodes | 224 | Founded | 10 years ago |
|---|---|---|---|---|---|
| Number of Listeners | Categories | ScienceAstronomy | |||

Host Dave Schlom visits with brand new MacArthur Fellowship award winner Kareem El-Badry, an astrophysicist at the California Institute of Technology in Pasadena.
Blue Dot marks three years of operation of the magnificent James Webb Space Telescope. NASA Webb Project Manager Mike Davis joins host Dave Schlom for an overview of the telescope's operation and unique capabilities that have surpassed the expectatio... more
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.
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.
People also subscribe to these shows.





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 find some hatchery steelhead next month give me a call!
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 the story was amazing. I loved hearing the development of her position, her characterizations of the astronauts - her personal stories of a great time. As a child during that period, I became fascinated by the space missions, and like many, the astronauts were my hero's.
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 today. An intelligent, graceful, and beautiful lady. STILL working at Ames! Long may she run! Thanks for this hour. Time well-spent.
The music is so jarring, I have had to give up listening. Sorry!.
This episode on Apollo 15 is a real treasure. Family perspectives offered by Tracy Scott and Jill Irwin Christiansen, Geologic insights from legends like Farouk El Baz and Jim Head, and mission perspectives from Flight Director Gerry Griffin make this one of the most thoughtful 60 minutes you’ll find in one place.
Terrific job by David Schlom and the team at Blue Dot, and a big THANK YOU to all the participants…it was wonderful to hear from all of you and to know you’re all well. Having met D... more
Key themes from listener reviews, highlighting what works and what could be improved about the show.
How this podcast ranks in the Apple Podcasts, Spotify and YouTube charts.
Apple Podcasts | #64 | |
Apple Podcasts | #61 | |
Apple Podcasts | #117 | |
Apple Podcasts | #89 | |
Apple Podcasts | #153 | |
Apple Podcasts | #27 |
Recent interactions between the hosts and their guests.
Listeners, social reach, demographics and more for this podcast.
| Listeners per Episode | |
|---|---|
| Gender Skew | |
| Location | |
| Interests | |
| Professions | |
| Age Range | |
| Household Income | |
| Social Media Reach |
Focusing on a blend of science, technology, and environmental issues, this podcast features interviews with experts and thought leaders from various fields, including astronomy and climate science. Listeners can expect profound discussions that not only illuminate scientific advancements but also address pressing challenges, such as climate change and conservation efforts. The host's inquisitive nature and diverse guest roster enrich each episode, making complex topics accessible and engaging for a broad audience. Unique for its interdisciplinary approach, this podcast nurtures curiosity and encourages listeners to explore the intersections between humanity and the cosmos.
Rephonic provides a wide range of podcast stats for Blue Dot. We scanned the web and collated all of the information that we could find in our comprehensive podcast database. See how many people listen to Blue Dot and access YouTube viewership numbers, download stats, audience demographics, chart rankings, ratings, reviews and more.
Rephonic provides a full set of podcast information for three million podcasts, including the number of listeners. View further listenership figures for Blue Dot, including podcast download numbers and subscriber numbers, so you can make better decisions about which podcasts to sponsor or be a guest on. You will need to upgrade your account to access this premium data.
Rephonic provides comprehensive predictive audience data for Blue Dot, including gender skew, age, country, political leaning, income, professions, education level, and interests. You can access these listener demographics by upgrading your account.
To see how many followers or subscribers Blue Dot has on Spotify and other platforms such as Castbox and Podcast Addict, simply upgrade your account. You'll also find viewership figures for their YouTube channel if they have one.
These podcasts share a similar audience with Blue Dot:
1. Science Friday
2. The Ezra Klein Show
3. Fresh Air
4. Universe Today Podcast
5. Throughline
Blue Dot launched 10 years ago and published 224 episodes to date. You can find more information about this podcast including rankings, audience demographics and engagement in our podcast database.
Our systems regularly scour the web to find email addresses and social media links for this podcast. We scanned the web and collated all of the contact information that we could find in our podcast database. But in the unlikely event that you can't find what you're looking for, our concierge service lets you request our research team to source better contacts for you.
Rephonic pulls ratings and reviews for Blue Dot from multiple sources, including Spotify, Apple Podcasts, Castbox, and Podcast Addict.
View all the reviews in one place instead of visiting each platform individually and use this information to decide if a show is worth pitching or not.
Rephonic provides full transcripts for episodes of Blue Dot. Search within each transcript for your keywords, whether they be topics, brands or people, and figure out if it's worth pitching as a guest or sponsor. You can even set-up alerts to get notified when your keywords are mentioned.
Recent guests on Blue Dot include:
1. Lori Dengler
2. Gordon Telepun
3. Simon Steel
4. Sophia Sheik
5. Damon Goodman
6. Holly Swan
7. Galen Taylor
8. Travis James
To view more recent guests and their details, simply upgrade your Rephonic account. You'll also get access to a typical guest profile to help you decide if the show is worth pitching.