Why Acquire Phase Four Propulsion

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 single multimode system, Quantum aims to deliver both high-impulse mobility and long-duration efficiency—turning spacecraft from disposable assets into persistent infrastructure.

Inside the episode:

• Why space remains a static domain and why maneuverability is the next decisive advantage
• How Ranger reframes satellites from disposable assets into long-lived infrastructure
• The strategic importance of fuel in orbit and why refueling changes mission economics
• Why multimode propulsion is the “holy grail” for mobility across orbits
• How life extension in GEO becomes the first commercial wedge
• What zone defense in space could mean for missile defense architectures
• Why Quantum was early to the market and why demand is finally catching up

• Chapters •

00:00 – Intro
00:45 – From Millennium to Quantum Space
02:56 – Key products at Millennium
03:57 – Evolution of Quantum's vision over the years
06:34 – Ranger
13:41 – 15 years of operational life
16:22 – Acquiring Phase Four
22:25 – Orbital mobility
23:37 – Ranger doubling as a fuel depot
25:51 – Target customers for Ranger
30:52 – Interceptors in space for Golden Dome
33:52 – Quantum Space's competitive edge
35:27 – Are other maneuverability companies viewing the problem the wrong way?
37:18 – Quantum Space's launches
39:24 – What does success look like for Quantum's first Ranger mission?
40:21 – Scaling and manufacturing
43:53 – Why should talent work at Quantum?
45:14 – Quantum Space in 5 years
47:35 – What did Kerry not expect while building Quantum?
48:49 – When is Quantum's next launch?

• Show notes •

Quantum Space’s website — https://www.quantumspace.us/
Mo's socials — https://twitter.com/itsmoislam
Payload’s socials — https://twitter.com/payloadspace / https://www.linkedin.com/company/payloadspace
Ignition’s socials — https://twitter.com/ignitionnuclear /  
https://www.linkedin.com/company/ignition-nuclear/
Tectonic’s socials  — https://twitter.com/tectonicdefense / https://www.linkedin.com/company/tectonicdefense/
Valley of Depth archive — Listen: https://pod.payloadspace.com/

• About us •

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.

• Payload: www.payloadspace.com
• Ignition: www.ignition-news.com
• Tectonic: www.tectonicdefense.com