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I bet long term, SpaceX is going to be the default choice for overseas cargo deliveries, especially when Starship is proven to work. “Once you achieve full reusability, then it’s simply the cost of access to orbit is just the cost of propellant, because now you can reuse all aspects of the vehicle. The propellant we use for the Starship is liquid oxygen and liquid methane, which is the cheapest propellant you could possibly get. …So the cost of propellant for Starship will be less than the cost of jet aviation fuel, which means that you should be able to actually send cargo to space for less than the cost of cargo of an airplane going on a transoceanic trip.”

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

Starship Was Engineered Backward From One Objective: Moving millions of tons to Mars at the lowest possible cost per ton to build a self-sustaining civilization. Five first-principles decisions make it possible: - Produce propellant on Mars. Methane and oxygen made from local CO2 and water ice via Sabatier. No Earth return fuel required. - Use 301 stainless steel. 67× cheaper than carbon fiber and survives both cryogenic propellants and 1,700°C reentry without heavy shielding. - Refuel in orbit. Tankers reset the rocket equation, enabling 100–150 ton payloads to Mars. - Belly-flop reentry. Maximize drag area so the atmosphere does most of the braking. - Full reusability. Both stages fly again rapidly. Marginal cost collapses to propellant only. This is the minimum architecture that makes multi-planetary life feasible.

🧠ITMEX 创始人 Arthur Hayes 投资了 DEV 团队，该团队耗时一年打造了相关协议。中文社区的 Builder @moffat2021 展示过智能合约的运行方式。 #METHANE# 是 @oylwallet #AIkanes# 协议在比特币主网上推出的首个代币，我再强调一下，甲烷是符文！是符文！ 其背后的核心开发者技术实力相当有积累！Alkanes让比特币也能跑智能合约，用Rust写代码，编译成WebAssembly格式，直接通过比特币交易部署。 METHANE（甲烷）总共有10亿枚，早期玩家付0.00003个比特币也就是3u就能铸造1万枚，也就是IDclub符文市场的一张。 全程在比特币主网上跑，安全又透明。Alkanes还用Protorunes协议和Metashrew工具，确保智能合约跑得更轻快顺畅，未来能支持DeFi、NFT、游戏甚至更多想象力。 💎 预期上，我很期待也很坚定 OKX @wallet 会支持甲烷协议市场，前文提到的多次暗示我都认为是先兆。而且OKX自来就喜欢有技术的比特币协议，我曾经见到过徐明星狂奶邮票Stamp的场景，甲烷会是下一个。OKX会联手甲烷占领下一轮比特币风头浪尖。

A year ago, European Energy co-founder Knud Erik Andersen told @nikolajcw about developing e-methanol under the European Union’s new renewable fuel framework. Now it’s a reality — and he shares the plan to become a global force in the green transition. Watch An Optimist’s Guide to the Planet

I was surprised at how dramatic the differences were. Methanol is technically toxic, so trading that for reduced cleanup might sound unwise, but I burned tons of the stuff at Armadillo Aerospace…

When I started making Trista’s coffee in an alcohol burner siphon, I used isopropyl I had on hand, but it left huge carbon deposits on the glass bulb. Switching to ethanol cut it a lot, but I was curious if methanol continued the trend, so I Ran The Experiment.