Pathfinder
Hosted by Mo and Mo Islam and Jack · Payload | Ignition | Tectonic
4.8from 150 ratings
- 182
- Episodes
- 37
- Transcribed
- 150
- Ratings
- Daily
- Cadence
- 2022
- First episode
- 216K
- YouTube views
About Pathfinder
Valley of Depth is a podcast about the technologies that matter — and the people building them. Brought to you by Arkaea Media, the team behind Payload (space), Ignition (nuclear energy), and Tectonic (defense tech), this show goes beyond headlines and hype. We talk to founders, investors, government officials, and military leaders shaping the future of national security and deep tech. From breakthrough science to strategic policy, we dive into the high-stakes decisions behind the world’s hardest technologies.
- Publisher
- Payload | Ignition | Tectonic
- Category
- business
- Language
- en
- Explicit
- No
- First episode
- 31 May 2022
- Latest episode
- 23 Sept 2026
Latest episodes
37 of 182 episodes have a transcript.
23 Sept 2026TRANSCRIPT
The Stoke Space Factory Tour with CEO Andy Lapsa
8 Sept 2026TRANSCRIPT
Launch is Not Solved Yet, with Andy Lapsa (CEO, Stoke Space)
12 Aug 2026
The Flying Supply Chain, with Isaac Roberts (CSO of Skyways)
Inside a recent episode
The Stoke Space Factory Tour with CEO Andy Lapsa
Published 23 Sept 2026 · Transcript excerpt
[…] On the way back down from space, and when we're using the heat shield for re-entry cooling, the thrust chambers are actually not turned on. They're still recirculating the coolant, but they're not turned on. I see. And is that the primary reason why you chose hydrogen for the cooling benefits? There's two reasons. One, it's an excellent coolant. It's about seven times better cooling capacity than other typical propellants you see. That's number one. And number two, it gives you better ISP specific impulse or basically gas mileage for the in space part of it. And so, you know, look, for a reusable rocketry, first of all, it's very hard even without reusable part of rocketry to get to space. […]
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See plansWho has been a guest on Pathfinder
Names identified in recent episode analyses. Showing up to five guests.
- Andy Lapsa
- Isaac Roberts
- Erik Kriessmann
- Zach Shore
- Dan Wright
Reach and audience
Public platform figures. Ratings count people who left a rating, not total listeners.
- YouTube views
- 216,177
- Score snapshot 15 Sept 2025
- Apple Podcasts (US)
- 4.7 / 5
- 61 ratings
- Spotify
- 4.8 / 5
- 89 ratings
Podcast Authority Score: 77 / 100
A composite of feed quality, social presence, YouTube performance and engagement. Read the methodology.
- Quality
- 81
- Social presence
- 0
- YouTube
- 86
- Engagement
- 93
Contact Pathfinder
- Guest appearances
- Does not typically book guests
Based on episode analysis; this does not confirm that the show is currently accepting guests.
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Questions about Pathfinder
Who hosts Pathfinder?
Mo and Mo Islam and Jack host the show. Published by Payload | Ignition | Tectonic.
How often do new episodes come out?
The show publishes daily, based on its RSS feed.
Does Pathfinder take guests?
The show does not typically feature guests, based on episode analyses.
Where can I read transcripts?
37 of 182 episodes have a transcript on Pod Engine. Full transcripts are available with a Pod Engine plan.
Host of Pathfinder?
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