Main Engine Cut Off
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MECO is opinion and analysis of spaceflight, exploration, policy, and strategy, by Anthony Colangelo.
Afleveringen
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T+342: NASA Updates Artemis III and IV Plans, and the Big Feelings on the Falcon to Starship Transition
30 oktober 2026 · 45 min
NASA laid out its plans for Artemis III and IV, including dramatically different paths to the Moon for Blue Moon and Starship. I dig into the complexity and sustainability of both architectures, the ever-changing role of SLS, and then into the big feelings around SpaceX’s future—with or without the industry. Lees meer
This episode of Main Engine Cut Off is brought to you by 32 executive producers—Joakim, Miles O’Brien, Josh from Impulse, Joonas, Tim Dodd (the Everyday Astronaut!), Kris, Jan, Theo and Violet, Heiko, Fred, Matt, Donald, Will and Lars from Agile, Stealth Julian, David, Joel, The Astrogators at SEE, Frank, Steve, Warren, Russell, Pat, Natasha Tsakos, Ryan, Matt from Built, Lee, and four anonymous—and hundreds of supporters.
Topics
NASA’s Artemis III Mission to Test Future Moon Lander Operations - NASA
NASA, Partners Accelerate Lander Development for 2028 Moon Missions - NASA
SpaceX no longer needs NASA, and that's a problem for America's space agency - Ars Technica
The Show
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Email your thoughts, comments, and questions to anthony@mainenginecutoff.com
Follow @WeHaveMECO
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Listen to MECO Headlines
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Artwork photo by SpaceX
Work with me and my design and development agency: Pine Works
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T+341: The Launch Shortage, SpaceX Going Alone (with Caleb Henry)
29 oktober 2026 · 57 min
Caleb Henry, Director of Research at Quilty Space, joins me (in studio!) to talk about the growing launch shortage, which new rockets are best positioned to fill the gap, and how SpaceX is separating itself from the launch market as the rest of the industry finds a path forward without them. Lees meer
This episode of Main Engine Cut Off is brought to you by 32 executive producers—Joel, Fred, Josh from Impulse, Jan, Kris, Ryan, Matt from Built, Natasha Tsakos, Warren, Will and Lars from Agile, Stealth Julian, Matt, Heiko, Miles O’Brien, Pat, Steve, Tim Dodd (the Everyday Astronaut!), Russell, The Astrogators at SEE, David, Donald, Joonas, Lee, Joakim, Frank, Theo and Violet, and four anonymous—and hundreds of supporters.
Topics
Caleb Henry (@ChenrySpace) / X
The OneWeb Book | Caleb Henry | Substack
Quilty Space
Space Force scrambles as Musk’s SpaceX retires its major rocket - POLITICO
Neutron's first launch slips again amid trouble with carbon composites - Ars Technica
SpaceX no longer needs NASA, and that's a problem for America's space agency - Ars Technica
SpaceX to attempt Starship catch on next flight, with eye on rapid cadence increase - Ars Technica
Does anyone actually want to win the medium-lift race in the United States? - Ars Technica
Blue Origin is going all in on the New Glenn rocket - Ars Technica
Amazon builds 1,000th satellite, will launch space internet service by end of year - Ars Technica
The Show
Like the show? Support the show on Patreon or Substack!
Email your thoughts, comments, and questions to anthony@mainenginecutoff.com
Follow @WeHaveMECO
Follow @meco@spacey.space on Mastodon
Listen to MECO Headlines
Listen to Off-Nominal
Join the Off-Nominal Discord
Subscribe on Apple Podcasts, Overcast, Pocket Casts, Spotify, Google Play, Stitcher, TuneIn or elsewhere
Subscribe to the Main Engine Cut Off Newsletter
Artwork photo by SpaceX
Work with me and my design and development agency: Pine Works
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T+340: Starliner’s Future and the Demand Signal
29 september 2026 · 33 min
NASA and Boeing laid out Starliner’s return-to-flight plan as SpaceX prepares to leave Dragon behind. I talk through the weak demand signal for crewed flight in LEO, how NASA’s commitment to the ISS and commercial stations boxed themselves into this decision, and what to do between here and the Moon. Lees meer
This episode of Main Engine Cut Off is brought to you by 33 executive producers—Theo and Violet, Miles O’Brien, Joakim, Steve, Warren, Joel, Frank, Joonas, Natasha Tsakos, Will and Lars from Agile, David, Matt, Jan, Matt from Built, Lee, Josh from Impulse, Russell, Heiko, Kris, Tim Dodd (the Everyday Astronaut!), Ryan, The Astrogators at SEE, Donald, Fred, Pat, Stealth Julian, and four anonymous—and hundreds of supporters.
Topics
Boeing "incredibly excited" to serve as nation's only astronaut transportation - Ars Technica
After being sidelined, Boeing's Starliner to get starring role in NASA's spaceflight plans - Ars Technica
Congress extends ISS and tells NASA to get moving on private space stations - Ars Technica
NASA chief concerned China may deny access to parts of Moon's south pole - Ars Technica
SpaceX's Starship goes orbital, deploying first next-gen Starlinks - Ars Technica
Vast Establishes Lunar Programs Division, Applying Haven Flight Heritage to Power, Communications, and Habitats on the Moon — an update by VAST
The Show
Like the show? Support the show on Patreon or Substack!
Email your thoughts, comments, and questions to anthony@mainenginecutoff.com
Follow @WeHaveMECO
Follow @meco@spacey.space on Mastodon
Listen to MECO Headlines
Listen to Off-Nominal
Join the Off-Nominal Discord
Subscribe on Apple Podcasts, Overcast, Pocket Casts, Spotify, Google Play, Stitcher, TuneIn or elsewhere
Subscribe to the Main Engine Cut Off Newsletter
Artwork photo by Zhou Quan
Work with me and my design and development agency: Pine Works
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T+339: Starbase Louisiana, the Falcon Fade, and the Next Wave of Launch Vehicles
28 augustus 2026 · 36 min
SpaceX officially announced Starbase Louisiana, and I break down why the site fits Starship’s launch, landing, and orbital architecture so perfectly. I also look at the transition from Falcon to Starship, and the new launch vehicles on the verge of debut. Lees meer
This episode of Main Engine Cut Off is brought to you by 32 executive producers—Warren, Matt from Built, Theo and Violet, Tim Dodd (the Everyday Astronaut!), Natasha Tsakos, Lee, Donald, David, Matt, Joonas, Russell, Steve, Frank, Will and Lars from Agile, The Astrogators at SEE, Josh from Impulse, Fred, Joel, Kris, Pat, Joakim, Miles O’Brien, Stealth Julian, Jan, Ryan, and four anonymous—and hundreds of supporters.
Topics
SpaceX Launches New Era of Commercial Spaceflight with $100 Billion Louisiana Campus - Louisiana Economic Development
SpaceX intends to invest up to $100 billion in massive Louisiana spaceport - Ars Technica
Episode 245 - Polar Bears and Penguins (with Jonathan Goff and Mike Loucks) - Off-Nominal
AAS Paper Review: RAAN Agnostic 3-Burn Departure Methodology for Deep Space Missions from LEO Depots (Part 1 of 2) | Selenian Boondocks
AAS Paper Review: Practical Methodologies For Low Delta-V Penalty, On-Time Departures To Arbitrary Interplanetary Destinations From A Medium-Inclination Low-Earth Orbit Depot | Selenian Boondocks
An Updated Propellant Depot Taxonomy Part V: Human Spaceflight Fixed Depots (Low-Orbit) | Selenian Boondocks
SpaceX on X: Ship 40 Reaches Christmas Island
Ship 40 arrives at Christmas Island, Plans Return to Starbase - NASASpaceflight
SpaceX on X: Ship 41 Single-Engine Static Fire
Ship 41 Completes Engine Testing Ahead of Flight 14 - NASASpaceflight
Satellite operators are in panic mode due to a worsening launch crisis - Ars Technica
Nova payload module, second stage, and Andromeda engine fit check - Stoke Space
First three flight-one Zenith engines ready for acceptance testing - Stoke Space
Rocket Lab Announces Second Quarter 2026 Financial Results: Posts Recor…
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T+338: Zhuque-3, Long March 10B, Chang’e-7 (with Andrew Jones)
27 augustus 2026 · 48 min
Andrew Jones returns to the show to catch up on the Chinese space industry—the landings of Zhuque-3 and Long March 10B first stages, Chang’e-7 and its delay, and more. Lees meer
This episode of Main Engine Cut Off is brought to you by 32 executive producers—Steve, Joakim, Ryan, Tim Dodd (the Everyday Astronaut!), Joonas, Josh from Impulse, Fred, Will and Lars from Agile, Miles O’Brien, Natasha Tsakos, Lee, Warren, Russell, Stealth Julian, Kris, The Astrogators at SEE, Frank, Matt from Built, Theo and Violet, Joel, Donald, Pat, David, Jan, Matt, and four anonymous—and hundreds of supporters.
Topics
China’s Landspace recovers booster with second orbital launch of Zhuque-3 rocket - SpaceNews
Landspace aims to refly recovered Zhuque-3 booster within six months - SpaceNews
LandSpace’s Zhuque-3 topples following milestone landing - NASASpaceFlight.com
China becomes second country to recover orbital booster with Long March 10B - SpaceNews
China lines up methalox Long March 10C as commercial workhorse after first booster recovery - SpaceNews
Chinese Long March 7A rocket explodes shortly after liftoff - SpaceNews
Long March 12 launches despite recent 7A failure, Long March 2C launches satellite for UAE - SpaceNews
China delays Chang’e-7 lunar south pole landing mission launch - SpaceNews
Long March 6C launches 7 satellites, Chang’e-7 rocket rolled back to assembly building - SpaceNews
The Show
Like the show? Support the show on Patreon or Substack!
Email your thoughts, comments, and questions to anthony@mainenginecutoff.com
Follow @WeHaveMECO
Follow @meco@spacey.space on Mastodon
Listen to MECO Headlines
Listen to Off-Nominal
Join the Off-Nominal Discord
Subscribe on Apple Podcasts, Overcast, Pocket Casts, Spotify, Google Play, Stitcher, TuneIn or elsewhere
Subscribe to the Main Engine Cut Off Newsletter
Artwork photo by Zhou Quan
Work with me and my design and development agency: Pine Works
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T+337: Inversion Space (with Justin Fiaschetti, Co-Founder and CEO)
4 augustus 2026 · 48 min
Justin Fiaschetti, Co-Founder and CEO of Inversion Space, joins me to talk about the company’s plan to store maneuverable reentry vehicles in orbit for rapid cargo delivery, the design and architecture decisions driving Arc including cross-range requirements and payload accomodations, and how they see the market for these services. Lees meer
This episode of Main Engine Cut Off is brought to you by 32 executive producers—Russell, Fred, Natasha Tsakos, Matt, Joonas, Matt from Built, Josh from Impulse, Pat, Steve, David, Tim Dodd (the Everyday Astronaut!), Joel, Stealth Julian, Ryan, Theo and Violet, Kris, The Astrogators at SEE, Miles O’Brien, Jan, Donald, Joakim, Frank, Will and Lars from Agile, Warren, Lee, and four anonymous—and hundreds of supporters.
Topics
Inversion
Arc - Inversion
Anduril, Team of Partners to Work on Space Force’s Space-Based Interceptors for Golden Dome for America | Anduril
Arc Orbital Supply Capsule Aims To Put Military Supplies Anywhere On Earth Within An Hour
The Show
Like the show? Support the show on Patreon or Substack!
Email your thoughts, comments, and questions to anthony@mainenginecutoff.com
Follow @WeHaveMECO
Follow @meco@spacey.space on Mastodon
Listen to MECO Headlines
Listen to Off-Nominal
Join the Off-Nominal Discord
Subscribe on Apple Podcasts, Overcast, Pocket Casts, Spotify, Google Play, Stitcher, TuneIn or elsewhere
Subscribe to the Main Engine Cut Off Newsletter
Artwork photo by Zhou Quan
Work with me and my design and development agency: Pine Works
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T+336: Rocket Lab Buys Iridium, New Glenn’s Pad Rebuild, and NASA Awards 4 CLPS Missions
2 juli 2026 · 25 min
Rocket Lab is buying Iridium for $8 billion, Blue Origin has a new plan to get New Glenn flying again without rebuilding the same pad architecture, and NASA just awarded four new CLPS missions. Lees meer
This episode of Main Engine Cut Off is brought to you by 32 executive producers—Warren, Matt from Built, Theo and Violet, Tim Dodd (the Everyday Astronaut!), Natasha Tsakos, Lee, Donald, David, Matt, Joonas, Russell, Steve, Frank, Will and Lars from Agile, The Astrogators at SEE, Josh from Impulse, Fred, Joel, Kris, Pat, Joakim, Miles O’Brien, Stealth Julian, Jan, Ryan, and four anonymous—and hundreds of supporters.
Topics
Rocket Lab to acquire Iridium - SpaceNews
Rocket Lab to Acquire Iridium in Historic Deal, Creating A
New Glenn Return to Flight - Blue Origin
NASA Awards More Moon Base Science, Previews New Opportunities
NextSTEP-3 B: Moon Base Demonstrations - NASA
Episode 154 - They Ran Into Us (with Matt Desch, CEO of Iridium) - Off-Nominal
The Show
Like the show? Support the show on Patreon or Substack!
Email your thoughts, comments, and questions to anthony@mainenginecutoff.com
Follow @WeHaveMECO
Follow @meco@spacey.space on Mastodon
Listen to MECO Headlines
Listen to Off-Nominal
Join the Off-Nominal Discord
Subscribe on Apple Podcasts, Overcast, Pocket Casts, Spotify, Google Play, Stitcher, TuneIn or elsewhere
Subscribe to the Main Engine Cut Off Newsletter
Artwork photo by SpaceX
Work with me and my design and development agency: Pine Works
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T+335: Auriga Space (with Winnie Lai, Founder and CEO)
15 juni 2026 · 41 min
Founder and CEO of Auriga Space, Winnie Lai, joins me to talk about their electromagnetic launch infrastructure and the path she sees for Auriga across space and defense markets. And yes, we talk about whether this kind of alternative launch architecture is a good fit for Earth, or a better fit for pretty much every other rock in the solar system. Lees meer
This episode of Main Engine Cut Off is brought to you by 32 executive producers—Steve, Ryan, Matt from Built, Russell, Joel, David, Kris, Joakim, Fred, Pat, Matt, Theo and Violet, Natasha Tsakos, Donald, Warren, Miles O’Brien, Will and Lars from Agile, Frank, Jan, Tim Dodd (the Everyday Astronaut!), Josh from Impulse, Stealth Julian, Lee, Joonas, The Astrogators at SEE, and four anonymous—and hundreds of supporters.
Topics
Auriga - Electromagnetic Launch for Space and Defense
Auriga Space raises $6M to shoot rockets off an electromagnetic launch track | TechCrunch
The Show
Like the show? Support the show on Patreon or Substack!
Email your thoughts, comments, and questions to anthony@mainenginecutoff.com
Follow @WeHaveMECO
Follow @meco@spacey.space on Mastodon
Listen to MECO Headlines
Listen to Off-Nominal
Join the Off-Nominal Discord
Subscribe on Apple Podcasts, Overcast, Pocket Casts, Spotify, Google Play, Stitcher, TuneIn or elsewhere
Subscribe to the Main Engine Cut Off Newsletter
Artwork photo by SpaceX
Work with me and my design and development agency: Pine Works
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T+334: SpaceX the Outlier, and Organization Leadership (with Matt Gjertsen)
9 juni 2026 · 44 min
I often talk about SpaceX being an extreme outlier in the industry and how many organizations have tried to replicate their approach, but very few (if any) have been successful. Matt Gjertsen of Built joins me to share a take on what exactly it is internally that drives their results, how to apply it in other organizations, and to share some perspective on his time at SpaceX leading Training and Development, and from elsewhere in the industry. Lees meer
This episode of Main Engine Cut Off is brought to you by 32 executive producers—Steve, Ryan, Matt from Built, Russell, Joel, David, Kris, Joakim, Fred, Pat, Matt, Theo and Violet, Natasha Tsakos, Donald, Warren, Miles O’Brien, Will and Lars from Agile, Frank, Jan, Tim Dodd (the Everyday Astronaut!), Josh from Impulse, Stealth Julian, Lee, Joonas, The Astrogators at SEE, and four anonymous—and hundreds of supporters.
Topics
Built Leaders
Minimum Viable Manager – Built Leaders
Why Steve Jobs drowned the first iPod prototype | Cult of Mac
The Show
Like the show? Support the show on Patreon or Substack!
Email your thoughts, comments, and questions to anthony@mainenginecutoff.com
Follow @WeHaveMECO
Follow @meco@spacey.space on Mastodon
Listen to MECO Headlines
Listen to Off-Nominal
Join the Off-Nominal Discord
Subscribe on Apple Podcasts, Overcast, Pocket Casts, Spotify, Google Play, Stitcher, TuneIn or elsewhere
Subscribe to the Main Engine Cut Off Newsletter
Artwork photo by SpaceX
Work with me and my design and development agency: Pine Works
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T+333: New Glenn Explodes on LC-36, Starship Flight 12, and NASA Moon Base Updates
29 mei 2026 · 31 min
Blue Origin’s New Glenn blew up on LC-36 last night during a static fire test, Starship flew its 12th flight, and NASA had a series of updates on its Moon Base program, including LTV awards, launch and landing contracts, and a somewhat unexplained branding exercise. Lees meer
This episode of Main Engine Cut Off is brought to you by 32 executive producers—Lee, Steve, Josh from Impulse, Kris, David, Miles O’Brien, Tim Dodd (the Everyday Astronaut!), Jan, Donald, Frank, Better Every Day Studios, Stealth Julian, The Astrogators at SEE, Ryan, Matt, Warren, Will and Lars from Agile, Pat, Fred, Joonas, Theo and Violet, Russell, Joel, Natasha Tsakos, Joakim, and four anonymous—and hundreds of supporters.
Topics
Here's why the failure of Blue Origin's New Glenn rocket is so catastrophic - Ars Technica
NASA takes steps toward building Moon Base, including discussing a "perimeter" - Ars Technica
NASA selects four companies for initial moon base awards - SpaceNews
The Show
Like the show? Support the show on Patreon or Substack!
Email your thoughts, comments, and questions to anthony@mainenginecutoff.com
Follow @WeHaveMECO
Follow @meco@spacey.space on Mastodon
Listen to MECO Headlines
Listen to Off-Nominal
Join the Off-Nominal Discord
Subscribe on Apple Podcasts, Overcast, Pocket Casts, Spotify, Google Play, Stitcher, TuneIn or elsewhere
Subscribe to the Main Engine Cut Off Newsletter
Artwork photo by NASA/Bill Ingalls
Work with me and my design and development agency: Pine Works
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