BREAKING: Inside Impulse Space with Tom Mueller (@lrocket) (SpaceX's 1st Employee)
FULL TOUR
The famous engineer behind the Merlin engine, now Founder, CEO & CTO of Impulse Space (@GoToImpulse)
ICYMI: Merlin still powers Falcon 9 today, the most reliable rocket engine ever flown & the highest thrust-to-weight ever developed. It's the workhorse behind nearly every SpaceX mission: Starlink launches, Dragon crew & cargo flights to the ISS, & booster landings
Tom walks us through the factory floor, from the avionics clean room to a live rocket engine firing in the vacuum chamber
Impulse is building the in-space mobility layer: the vehicles & engines that move spacecraft after launch, from LEO to GEO, the Moon, infinity & beyond
We cover:
→ Mira: precision maneuvering spacecraft & its saiph thrusters (8 thrusters, ~50 lbs thrust, 5-yr orbit life)
→ Helios: long haul same-day delivery vehicle (12 tons of LOX/methane, LEO to GEO)
→ Deneb Engine: 15,000 lbs thrust engine that powers Helios, ox-rich staged combustion, carbon skirt running over 3,000°F
→ Why 3D printing is "almost a cheat code" for rocket engines
→ In-house composite tanks, Novaloy, & copper liners machined from 700 lbs down to 25
→ 3 spacecraft in orbit + a 1,200-meter rendezvous
→ Starlink, iterating Merlin & Raptor, & working with @elonmusk
→ Nuclear propulsion, the Moon, & why compute needs to move to space
𝐓𝐈𝐌𝐄𝐒𝐓𝐀𝐌𝐏𝐒
(00:00) Tom Mueller, Founder, CEO & CTO of Impulse Space
(00:49) Inside Impulse Space
(02:32) Avionics Bay floor
(02:59) Building rockets at home
(03:50) Mira and Helios
(08:00) Why Tom left SpaceX
(09:33) The Deneb Engine walkthrough
(11:42) Testing in Mojave
(12:23) Favorite part of the Engine
(13:30) How it's 3D Printed
(14:21) Why 3D Printing changes everything
(16:54) Finding Talent for COPVs
(17:28) No Modern hardware without software
(19:52) The Mill Turn explained
(22:42) Payload Deck Design
(25:28) Entering the Secret Area
(30:48) Thrust, Flow Rate, & 100 Sensors
(32:13) Collision avoidance in Orbit
(32:57) The Electric Propulsion Chamber
(34:28) Nuclear Electric is the future
(38:49) Data Centers in Space
(40:28) SpaceX & Starlink's Growth
(41:10) Working with Elon
(42:07) If not CEO, then what?
(42:32) Moon matters more than Mars
In America, a stranger will rename you in a single breath, and you are simply expected to come when called.
I went to eat at a busy restaurant. A young man at the front asked for my name, to mark my place in line. I gave it the weight it has carried for eight hundred years.
"Nobunaga."
He smiled, nodded, and wrote it down with great confidence. Then he read it back to me, to be sure he had honored it correctly.
"Perfect. Banana, party of one."
Banana. He had heard my name, held it a moment, and returned to me something rounder and more cheerful. To refuse the name a host gives is to refuse his welcome. I bowed. I was Banana now.
Then he handed me a small black disc, said it would "light up and buzz" when my table was ready, and turned to the next guest as though he had not just placed a living thing in my hands.
I held it in both palms, the way one holds a small sleeping beast that may wake. I found a place to stand. I waited, ready.
It woke.
It screamed. It flashed red. It leapt and shook in my hands like a captured spirit demanding release. A lesser man would have dropped it. I did not. I gripped it, steady, looked into its blinking lights, and told it, in a low voice, that its time had come. Then I carried it back to the host with both hands, the way one returns a hawk to its master.
He took it without looking and shouted across the entire room.
"BANANA! Party of one, your table's ready!"
A hundred strangers turned. I rose. I crossed that floor as Banana, spine straight, chin level, a man answering to his name. A child pointed at me. I gave the child a small bow. He had recognized me.
All through the meal they kept me. "How's it tasting, Banana?" "More water, Banana?" The check, when it came, said Banana, and thanked me for visiting. By the end the whole staff knew me. They waved as I left. "Night, Banana!"
So tell me honestly.
For eight hundred years my clan answered to one name. Tonight I answered to a fruit, calmed a screaming relic in my bare hands, and ate among people who were glad I came.
When the little disc lights up, is the table truly mine, or am I only keeping it warm for the next Banana?
Because I have already decided to return on Friday, and to ask, very humbly, for the same disc.
Mark Carney in May 2025:
85% of goods are exempt from Trump tariffs, we have the best deal of any nation.
Mark Carney in 2026:
We're in a recession because of Trump's tariffs.
Ukraine is not in recession.
Canada is.
Read that again.
Ukraine is fighting missiles, blackouts, energy strikes, transport disruption, and a full-scale war.
Canada is fighting Trudeau, Freeland, Carney, and the Liberal Party.
Ukraine took a war-hit Q1 and is still forecast to grow in 2026.
Canada had GDP drop in Q4, flatline in Q1, and business investment fall for 5 straight quarters.
No missiles.
No bombed-out power grid.
No front line.
Just Liberal economics doing what Liberal economics does.
Ukraine has war.
Canada has Liberals.
That is the embarrassment.