
CEO/Co-Founder @stoke_space - Husband/dad/engineer building 100% reusable rockets
Joined July 2022
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If you give @NASAAdmin an engine, he's going to climb in it. This is a new @NASA under @rookisaacman, and I'm here for it! 🇺🇸
Thanks to @NASAAdmin Jared Isaacman and his team for visiting our Moses Lake Test Site recently! Great to show off hot fires of both our Andromeda and Zenith engines as they complete their qualification campaigns.
Thanks @itsmoislam for coming out and doing this. The space economy can only scale as fast as rockets can leave the pad, and full and rapid reuse is the only way to unchoke the bottleneck!
EXCLUSIVE: @AndyLapsa, CEO of @stoke_space, joins VALLEY OF DEPTH for his first sit-down since the company's $1B raise and the unveiling of its new 15T to LEO Nova Block 2 launch vehicle.
Stoke is a launch company building Nova, a two-stage rocket designed to be fully and rapidly reusable, with an upper stage that uses a hydrogen-cooled metallic heat shield and a first stage powered by a full-flow staged combustion engine called Zenith.
Highlights:
01:04 – New developments at Stoke
02:16 – The Nova product family
08:19 – Meeting with Jared Isaacman
09:48 – $1B fundraise, use of proceeds
12:12 – Future production capacity
13:44 – Was this the last private funding round for Stoke?
23:46 – Why are rockets still so hard?
26:17 – Why build a full-flow staged combustion for your first stage?
29:14 – Technical hurdles that are left to solve
35:05 – Stoke's heat shield vs ceramic heat shields
39:51 – The state of the launch industry. Are we screwed in the short term?
49:00 – A payload agnostic future
51:36 – The application layer for Block 2
1:01:20 – What keeps Andy up at night?
1:02:29 – What happens after mission success?
1:06:31 – When should we expect the first flight of Block 2?
Full episode 👇
We remain fully committed to building and flying Nova Pathfinder, which has already taught us an enormous amount about full and rapid reuse, and now we get to unveil Block 2:
stokespace.com/news/scaling-…
Hell yeah - SUCH an honor to fire both our engines for @rookisaacman and the NASA team!
Always good to get out of DC and into the field where the action is happening.
From @Livermore_Lab to United Precision, @Boeing, @_Rocketdyne, and @stoke_space, we spent the last few days with the scientists, engineers, and technicians putting some of America’s most ambitious missions into motion.
We saw incredible science, aerospace manufacturing, propulsion hardware for ESM, Orion, and SR-1, and wrapped it up with live Zenith and Andromeda tests at Stoke’s test site, which were extremely impressive.
We have an enthusiastic and engaged President @POTUS who has given us the policy, the resources, and even a new Space Academy. We have bipartisan support from Congress, the talent of the NASA workforce, the best of industry, and a playbook that changed the world in 1969 and will do so again.
This is the right framing. @Rkt_Da and I wouldn't have gone through with @stoke_space if we couldn't turn the re-entry problem into an engineering challenge instead of a science problem. That's all we did for the first year. imo it's an important qualifier for any company raising venture capital.
Several comments asking me about Stoke Space
What they are doing (regeneratively-cooled metallic heat shield using LH2) is pretty neat and has promise.
I talk sometimes about how what SpaceX did with Falcon 9 was more of an "engineering problem" (taking proven mid-TRL technology and making it work on a real system) than the issues with Starship's heat shield that I see as more of a "physics problem" (depending on your definition of "rapid" reuse).
Engineering problems can be solved with iterative design and brute force. Physics problems need true advances in science and technology.
All that to say, IMO what Stoke is trying to solve is an engineering problem. With the right people, enough money, and enough time, I think it will work. Anytime your design relies this heavily on hydrogen you're inviting some (incredibly small) demons to the party, but alas, not my problem.
I'd love more details on their ground testing at "higher heat loads" than what is experienced in flight. But last I heard they're targeting a launch test late this year? Looking forward to finding out...
Great to host NASA Associate Administrator Amit Kshatriya at our HQ last week, just in time to see the aft module fit up to stage 1!🚀🚀
omg if this isn't an amazing picture idk what is
Super proud of the team for this one. BIG step!
Big tank. Big tests. Big milestone.
Nova Stage 1 proto-qualification is complete.
46 structural objectives verified, plus key fluid systems, avionics, software, ground systems, and ops demos. (More detail in our linked blog post.)
This is where new rockets often find the hard stuff; Nova (and the Stoke team) handled it. Our local partners at the @PORTOFMOSESLAKE , the Grant County Sheriff's Office and Public Works department, plus our vendor Norco made sure we had the support we needed every step of the way.
Ad Astra.✨
stokespace.com/nova-stage-1-…
From factory floor to installed on stand in less than 18 hours - not bad for SN1!
Incredible work by our small but mighty team of structures engineers and fabricators. Can’t wait to see this thing go vertical!
It’s great to see our nation’s space program returning to a culture of pragmatism and results under @rookisaacman. Under that context, congrats to @SenateCommerce and @commercedems for advancing the NASA Reauthorization Act of 2026. This bill puts NASA on a path to unlock the LEO economy with scalable transportation to, through, and from space, advancing America’s leadership in the developing space economy.
it's an honor and a privilege to carry this historic pad into the future. lfg! 🇺🇸🇺🇸🇺🇸
Today, on the anniversary of John Glenn's historic space flight in 1962, we raised the flag over SLC-14 for the first time since breaking ground. It's an honor to be part of America's space history – and its future. 🇺🇸🚀
Special thanks to @SLDelta45 installation commander Colonel Brian L. Chatman, Director. of @NASAKennedy Janet Petro, and @RepHaridopolos for joining us.
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Happy to announce an extension of our Series D financing round to $860M, adding $350M to the initial $510M raised in October 2025. This brings our total funds raised to $1.34B.
We're grateful to our investors and excited to bring our fully and rapidly reusable Nova rocket to market while accelerating future elements of the product roadmap.
Learn more: stokespace.com/stoke-space-t…
5 yrs since YC but feels like 20 (and also feels like yesterday). Fun retelling those earliest days but it's still day 1 for us and for space, and there's a LOT more to do!
Stoke Space is racing to build the world's first fully reusable rockets that can launch, survive reentry, and fly again almost right away.
In this episode of Hard Tech, @aaron_epstein sits down with @stoke_space co-founders @AndyLapsa and @Rkt_Da to find out why they chose to take on one of the hardest problems in rocket science, how being a smaller startup gives them an advantage, and what full reusability could unlock for the future of spaceflight.
00:00 — Intro
01:16 — Stoke Space’s mission: Rapid reusability
02:18 — Why Second Stage capsules fail reentry
03:34 — Stoke Space’s stage 2 solution
05:30 — Reusability-First Design Philosophy
07:25 — Early Engine Development & Test Strategy
10:48 — Vertical Integration & Manufacturing
11:21 — Iteration Speed as a Competitive Advantage
12:29 — Software as Core Infrastructure
14:00 — Path to Orbit & Launch Operations
15:04 — How This Could Change The World
It was less than 10 years ago when the idea of recovering a 1st stage was extremely controversial. Now it's absurd to even consider anything else. Today, the same skepticism surrounds 2nd stage reuse, but it won't be long until that, too, is archaic.








































