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PODCAST

Valley of Depth

Payload | Ignition | Tectonic

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

business investing

All Episodes

00:51:57

Grid From Above, with Marc Berte (CEO of Overview...

Valley of Depth ·

2026/01/08

We're back to kick off 2026!While the world debates how to power the next era of compute, data centers, and industrial growth, Overview Energy is betting the answer is above us. The company is building infrastructure to beam power from space directly to Earth's grid.Founded by Marc Berte, a nuclear and aerospace engineer who spent his career at the intersection of lasers, spacecraft, and high-energy systems, Overview is developing a constellation of satellites in geosynchronous orbit that absorb

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00:50:26

The Maneuver Gap, with Kerry Wisnosky (CEO of Quantum...

Valley of Depth ·

2025/12/19

Kerry Wisnosky believes the future of space power will be decided by maneuverability. As satellites remain largely static, Quantum Space is building the infrastructure to move, persist, and operate across orbits, from LEO to cislunar space.The company is developing Ranger, a six-metric-ton, high-delta-V spacecraft designed to operate for up to 15 years, host and deploy payloads, maneuver freely between orbits, and function as a refueling node. By combining chemical and electric propulsion into a

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00:56:14

Building Golden Dome, with Lt Gen (Ret) Nahom & Mike...

Valley of Depth ·

2025/12/11

Lt. Gen. (Ret.) David “Abu” Nahom spent decades defending the American homeland, from commanding Alaska Command and the 11th Air Force to shaping Air Force budgets and strategy as the A8. Mike Dickey started his career in the original Strategic Defense Initiative, helped build the USSF and now advises companies and government leaders on the future of national security. Together, they unpack the realities behind Golden Dome: what it is, what it isn’t, and why it may be the most complex defense

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00:53:29

Railroad to Mars, with Halen Mattison (CEO of General...

Valley of Depth ·

2025/12/04

Halen Mattison left SpaceX because Elon told him his vision was too long-term. He wanted to build the propellant infrastructure that would unlock Mars and everything between here and there, but the timeline didn't fit SpaceX's roadmap. So he started General Galactic to do it himself.His team is developing Genesis, a water electrolysis propulsion system that delivers hydrazine-level thrust and xenon-level efficiency using the safest, cheapest, most abundant propellant in the solar system. The company

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00:43:41

Power, Meet Shield, with Trevor Smith (CEO of Atomic-6)

Valley of Depth ·

2025/10/30

Space has a power problem. Satellites need more electricity and better protection, yet solar arrays are slow to build and failure-prone, and shielding adds mass and complexity. Atomic-6 is tackling both sides at once.Our guest this week is Trevor Smith, founder and CEO of Atomic-6. His team is building Light Wing, a redeployable, mass-manufacturable solar array aimed at higher watts per kilogram and faster delivery, and Space Armor, an RF-permeable debris shield designed to stop hypervelocity

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00:50:18

Rendezvous Economics, with Austin Link (Co-Founder of...

Valley of Depth ·

2025/10/23

Satellites are expensive and once launched, mostly untouchable.. That’s the problem Starfish Space is solving. The company is building Otter, a small, autonomous servicing vehicle capable of rendezvousing with, docking to, and moving other satellites in orbit.On this episode of Valley of Depth, I’m joined by Austin Link, co-founder of Starfish Space. Austin shares how a team of former Blue Origin engineers turned a bold idea into one of the most advanced orbital servicing programs in the world. We

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00:47:52

The Missing Sensor, with Nicolaas Verheem (CEO of TRL11)

Valley of Depth ·

2025/10/01

Spacecraft carry all kinds of sensors, but rarely the one humans rely on most: video. Despite offering the richest insight per watt, gram, and dollar, cameras have been largely absent from orbit.That’s what TRL11 is out to change. The company is building radiation-tolerant optics, edge computers that process and compress video in real time, and ground software that turns footage into operational awareness. On this episode of Valley of Depth, I’m joined by Nicolaas Verheem, founder and CEO of TRL11

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00:58:40

Engineering Mass Abundance, with Neel Kunjur (CTO of...

Valley of Depth ·

2025/09/25

Smallsats have defined the last decade of space, but their limitations are clear: low power, limited throughput, and fragile unit economics. K2 Space is betting on the opposite. The company is building mega class and giga class satellites, platforms measured in tons rather than kilograms, that deliver unprecedented power, capacity, and resilience. By vertically integrating 80 percent of their systems in house, K2 is cutting costs by an order of magnitude and making industrial scale spacecraft a

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00:50:55

Proven Propulsion, with Kristin Houston (President of...

Valley of Depth ·

2025/09/17

This episode is presented by L3Harris Technologies.On this special edition of Valley of Depth, we’re joined by Kristin Houston, President of Space Propulsion and Power Systems at L3Harris. Kristin leads the team responsible for propulsion and space power systems across Artemis and beyond, from the RS-25 main engines to the Gateway’s high-power electric propulsion system to Fission Surface Power (FSP) on the Moon. We dive into how Artemis II is shaping up, the role of SLS, and why nuclear power and

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00:50:28

From Seabed to Space, with Tyler Bernstein (CEO of...

Valley of Depth ·

2025/09/04

Some environments are simply too harsh for traditional power sources. Solar panels fail in darkness, batteries die quickly, and diesel can’t reach. That’s where Zeno Power comes in. The company is pioneering nuclear batteries, compact systems that recycle radioactive waste into safe, reliable power for years at a time.On this episode of Valley of Depth, I’m joined by Tyler Bernstein, co-founder and CEO of Zeno Power. We trace the journey from a Vanderbilt classroom project to a venture-backed

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01:05:44

The Case for Continuity, with Pam Melroy (Former...

Valley of Depth ·

2025/08/28

Continuous human presence in orbit has been a cornerstone of U.S. leadership in space for 25 years. But recent changes to NASA’s Commercial LEO Destinations (CLD) strategy have Pam Melroy—former NASA Deputy Administrator and shuttle commander—sounding the alarm. She warns that shifting to short-duration missions risks ceding leadership in LEO and undermining U.S. readiness for Mars, opening the door for China to take the mantle.On this episode of Valley of Depth, we’re joined by Pam to talk about

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00:50:37

Logistics Wins Wars, with David Tuttle (CEO of Rune)

Valley of Depth ·

2025/08/21

Logistics rarely makes headlines, but it wins or loses wars. Rune Technologies is betting that the future of contested sustainment won’t be built on warehouses and spreadsheets, but on software. The company recently raised a $24M Series A to accelerate that vision.On this episode of Valley of Depth, we’re joined by Rune co-founder and CEO David Tuttle to talk about how the company is reimagining military logistics from the ground up. We trace Rune’s path from early prototypes to today’s TyrOS

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00:54:52

Funding Deterrence, with Tommy Hendrix (Managing...

Valley of Depth ·

2025/08/13

Tommy Hendrix is Managing Partner at Decisive Point, a venture firm backing early-stage companies developing critical national security technologies. In this episode of Valley of Depth, we unpack what it really means to fund the future of national defense and how venture capital is becoming a tool of statecraft.A former Green Beret turned investor, Tommy brings rare insight into the geopolitical stakes, bureaucratic hurdles, and human motivations behind the new national security startup wave. From

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00:51:32

Float. Foil. Fly., with Billy Thalheimer (CEO of...

Valley of Depth ·

2025/08/07

In this episode of Valley of Depth, we sit down with Regent cofounder and CEO Billy Thalheimer to explore a radical reimagining of coastal mobility, not with eVTOLs or hyperloops, but with high-speed electric seagliders that skim just above the water.Part hydrofoil, part aircraft, and fully electric, Regent’s vehicles operate in the sweet spot between aviation and maritime. They’re fast enough to replace short-haul flights, regulated like boats, and increasingly viewed by the Pentagon as a new class

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00:52:40

Pulses Towards Power, with Conner Galloway &...

Valley of Depth ·

2025/07/31

In this episode of Valley of Depth, we sit down with Xcimer Energy’s cofounders, Conner Galloway and Alexander Valys, to unpack one of the boldest bets in fusion: resurrecting a Cold War-era laser technology to build the fastest, most scalable path to commercial fusion power.Xcimer has raised over $100 million to bring its inertial confinement fusion system to life, starting with LPK, a high-powered prototype laser built in just four months, and progressing toward Vulcan, a full-scale,

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00:44:40

Stratospheric Platforms, with Mikkel Vestergaard (CEO...

Valley of Depth ·

2025/07/24

Mikkel Vestergaard isn’t a typical aerospace founder. Before building solar-powered stratospheric airships, he spent two decades in humanitarian innovation, distributing a billion malaria nets, co-creating the LifeStraw, and helping eradicate Guinea worm disease. Now, as CEO of Sceye, he’s applying that same ethos to aerospace.In this conversation, Mikkel dives deep into the origins, design, and future of High-Altitude Platform Systems (HAPS). We explore why the stratosphere is emerging as a new

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00:47:44

The Energy Grail, with Julien Barber (Investor at...

Valley of Depth ·

2025/07/16

Julien Barber is an investor at Emerson Collective, a venture and policy firm founded by Laurene Powell Jobs, where he backs bold bets on decarbonization, infrastructure, and long-horizon climate technologies. Before becoming an investor, Julien researched fusion energy at MIT and co-founded a carbon-tech startup. In today’s episode, we go deep into Julien’s investing philosophy, Emerson’s unique model, and the hard tech categories he believes are most undercapitalized.We cover:Why Emerson is

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00:49:00

Built for Complexity, with John Conafay (CEO of...

Valley of Depth ·

2025/07/15

Welcome to a special Tuesday-edition of Valley of Depth, powered by Integrate.John Conafay spent years inside the space and defense worlds, from Spire to Astranis to the U.S. Air Force, and saw the same problem everywhere: complex programs were managed with spreadsheets, slide decks, and…crossed fingers. So in 2022, he founded Integrate to fix it. What started as a scrappy startup with five engineers has since landed what he describes as one of the largest software contracts in Space Force history

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00:59:03

Back from the Dead, with Chris Kemp (CEO of Astra)

Valley of Depth ·

2025/07/09

Chris Kemp took Astra public in 2021 with a bold vision: low-cost rockets launching daily, bringing sovereign space access to every country on Earth. At its peak, the company was worth over $2 billion. Within two years, that valuation collapsed by 99%. In this episode of Valley of Depth, we go inside one of the most dramatic flameouts and attempted comebacks in the commercial space era. We discuss:Why Astra’s SPAC-era promises didn’t survive contact with realityWhat really went wrong with Rocket 3

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00:59:51

Rapid Maneuverability, with Jeff Thornburg (CEO of...

Valley of Depth ·

2025/07/03

Jeff Thornburg helped build Raptor at SpaceX. Now he’s building something new: a spacecraft designed for rapid maneuverability across orbits powered by solar thermal propulsion.In this episode of Valley of Depth, we get into the technical, strategic, and commercial implications of in-space mobility and why it matters now. Topics include:The hardest parts of building a rocket engine (and why most startups get it wrong)The origins of the Raptor engine and lessons from SpaceXWhy Portal is betting on

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156 results

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