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…

In the wake of new executive orders elevating nuclear energy as a national security priority, there’s growing momentum—and urgency—behind advanced fission technologies. Few are better positioned to talk about this shift than Jordan Bramble, co-founder and CEO of Antares Nuclear, a startup building microreactors for defense and space. In this episode of Valley of Depth,…

In a major shift, the U.S. government is moving to overturn a 50-year ban on civilian supersonic flight over land—a regulation that’s defined the boundaries of commercial aviation since 1973. It’s a pivotal moment for aerospace, and a timely one for this conversation with Blake Scholl, founder and CEO of Boom Supersonic. In this episode…

If the next great war is fought in space, Even Rogers wants the U.S. to be ready. On this episode of Valley of Depth, the True Anomaly CEO and former Air Force weapons officer joins us to break down how he’s building autonomous systems for space superiority and why space is the next warfighting domain.…

This week on Valley of Depth, we’re joined by Paul Lwin, co-founder and CEO of Havoc AI—a builder of integrated hardware, software, and logistics that enables collaborative, autonomous maritime operations. A former Navy test pilot and electronic warfare officer, Paul saw firsthand the strategic challenge posed by China’s industrial scale in the Pacific and set…

This week on Valley of Depth, we’re joined by Marc Allen, CEO of Electra and former Chief Strategy Officer at Boeing. After nearly two decades at one of aerospace’s most iconic companies, Marc stepped away—and then doubled down—on aviation with a bold bet: a hybrid-electric aircraft that takes off in 150 feet, carries 1,000 pounds,…

This week on Valley of Depth, we’re joined by Erik Kriessmann, Partner at Altimeter – the $10B crossover firm known for backing generational companies across tech, defense, and space. From sourcing early-stage deals to helping build world-class teams, Erik’s path into venture started with a deep focus on talent, giving him a rare edge in…

This week on Valley of Depth, we’re joined by Christian Garcia, Partner at Breakthrough Energy Ventures — the Bill Gates-backed climate fund investing in bold technologies to accelerate the energy transition across every sector of the economy. With portfolio companies tackling everything from geologic hydrogen to reusable rockets, BEV is redefining what it means to…

This week on Valley of Depth, we’re joined by Tejpaul Bhatia, the newly appointed CEO of Axiom Space — a company building one of the first commercial space stations and leading private human spaceflight missions to low Earth orbit. The company is gearing up for Ax-4, Axiom’s fourth mission to the ISS, which will fly…

We’re excited to launch Valley of Depth, our new podcast taking the place of our beloved (formerly known as) Pathfinder (RIP) podcast.   Valley of Depth is about the technologies that matter—and the people building them. We talk to founders, investors, government officials, and military leaders shaping the future of national security and deep tech.…