NASA selected Blue Origin to (maybe) deliver the once-cancelled VIPER rover, modified Sierra Space’s ISS resupply contract which likely puts the nail in the coffin of Dream Chaser, and released the draft of its new commercial space station strategy. All different stories with one message: prove it. But maybe not in a good way.

This episode of Main Engine Cut Off is brought to you by 34 executive producers—Jan, Kris, Lee, Will and Lars from Agile, Theo and Violet, Better Every Day Studios, Josh from Impulse, Joakim, Bob, Donald, Creative Taxi, Frank, Pat, Joonas, Fred, Heiko, Warren, Matt, Joel, The Astrogators at SEE, Tim Dodd (the Everyday Astronaut!), David, Ryan, Russell, Stealth Julian, Steve, Natasha Tsakos, and four anonymous—and hundreds of supporters.

Topics

• NASA Selects Blue Origin to Deliver VIPER Rover to Moon’s South Pole - NASA
• VIPER Might Have A New Ride to the Moon on Blue Origin – SpacePolicyOnline.com
• Blue Origin only bidder for new VIPER lander award - SpaceNews
• NASA, Sierra Space Modify Commercial Resupply Services Contract - NASA
• Sierra’s Dream Chaser is starting to resemble a nightmare - Ars Technica
• NASA releases details on revised next phase of commercial space station development - SpaceNews
• Vast backs new NASA commercial space station strategy - SpaceNews

The Show

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Caleb Henry, Director of Research at Quilty Space, joins me to talk about EchoStar’s spectrum sales and constellation cancellation, SpaceX’s spectrum purchase, and the financials of Starlink.

This episode of Main Engine Cut Off is brought to you by 34 executive producers—Bob, Heiko, Creative Taxi, Josh from Impulse, Russell, Donald, Will and Lars from Agile, Matt, Steve, Lee, Joel, Tim Dodd (the Everyday Astronaut!), Frank, Natasha Tsakos (pronounced Tszakos), The Astrogators at SEE, Better Every Day Studios, Ryan, Kris, Pat, Joakim (Jo-Kim), Stealth Julian, Warren, Theo and Violet, Jan, Joonas, Fred, David, and four anonymous—and hundreds of supporters.

Topics

• Quilty Space (@QuiltySpace) / X
• Starlink Financial & Strategic Analysis 2025 1H | Quilty Space
• Sign Up Form | Quilty Space
• EchoStar sells spectrum to SpaceX, cancels MDA satellite contract - SpaceNews
• EchoStar’s $23 billion spectrum sale clears path for direct-to-device constellation - SpaceNews
• EchoStar orders initial MDA satellites for $5 billion LEO constellation - SpaceNews

The Show

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Casey Handmer, Founder of Terraform Industries, joins me to talk about the state of NASA in 2025, talent acquisition and retention, productivity, and so much more.

This episode of Main Engine Cut Off is brought to you by 34 executive producers—Kris, Joakim (Jo-Kim), Creative Taxi, Heiko, Joel, Frank, Josh from Impulse, The Astrogators at SEE, David, Jan, Tim Dodd (the Everyday Astronaut!), Theo and Violet, Joonas, Stealth Julian, Donald, Warren, Matt, Pat, Steve, Fred, Bob, Lee, Natasha Tsakos (pronounced Tszakos), Will and Lars from Agile, Russell, Better Every Day Studios, Ryan, and four anonymous—and hundreds of supporters.

Topics

• Casey Handmer (@CJHandmer) / X
• Casey Handmer
• Terraform Industries
• NASA Is Worth Saving – Casey Handmer's blog
• Episode 170 - Luckily, We Did All the Math (with Casey Handmer) - Off-Nominal
• The science behind clean hydrocarbons | The Freethink Interview - YouTube

The Show

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Tom Marotta of The Spaceport Company joins me to talk about the executive order this week focused on commercial space regulatory reform, what problems it seeks to solve, his experience on both sides of those issues, and how we should understand the positioning of the order.

This episode of Main Engine Cut Off is brought to you by 34 executive producers—Frank, David, Jan, Josh from Impulse, Steve, Ryan, Joakim (Jo-Kim), Lee, Creative Taxi, Theo and Violet, Fred, Pat, Donald, Better Every Day Studios, Stealth Julian, Bob, The Astrogators at SEE, Russell, Joel, Tim Dodd (the Everyday Astronaut!), Matt, Natasha Tsakos (pronounced Tszakos), Kris, Warren, Heiko, Will and Lars from Agile, Joonas, and four anonymous—and hundreds of supporters.

Topics

• Tom Marotta | LinkedIn
• The Spaceport Company
• Previous appearance: T+259: Tom Marotta, The Spaceport Company - Main Engine Cut Off
• Enabling Competition in the Commercial Space Industry – The White House
• Trump Issues Executive Order on Commercial Space – SpacePolicyOnline.com

The Show

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Michael Moreno, VP of Strategy at Lunar Outpost, joins me to talk about what they’ve been up to at the company, the NASA Lunar Terrain Vehicle Services contract, the idea of services as a business on the Moon, and more.

This episode of Main Engine Cut Off is brought to you by 35 executive producers—Lee, Russell, Fred, The Astrogators at SEE, David, Matt, Theo and Violet, Warren, Josh from Impulse, Frank, Pat from KC, Steve, Pat, Creative Taxi, Jan, Stealth Julian, Better Every Day Studios, Kris, Heiko, Donald, Natasha Tsakos (pronounced Tszakos), Joel, Joakim (Jo-Kim), Will and Lars from Agile, Harrison, Joonas, Ryan, Tim Dodd (the Everyday Astronaut!), Bob, and four anonymous—and hundreds of supporters.

Topics

• Home | Lunar Outpost
• Lunar Voyage 1 Update 
• Lunar Outpost Becomes First Company to Receive Payment for Space Resources
• NASA selects three companies to advance Artemis lunar rover designs - SpaceNews
• Lunar Dawn Team Awarded NASA Lunar Terrain Vehicle Contract
• Lunar Outpost Signs with SpaceX for Starship Moon Mission

The Show

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A special simulcast of this week’s Off-Nominal—the other show I do, if you somehow haven’t heard of it!—because it’s exactly the topic list with exactly the guest I had up next on my list. I’m joined by Adrian Beil of NASASpaceflight to talk about the recent mayhem at Starbase, and to kick around European space policy topics in the run up to the ESA Ministerial later this year.

This episode of Main Engine Cut Off is brought to you by 34 executive producers—Creative Taxi, David, Donald, Matt, Frank, Better Every Day Studios, Warren, Bob, Russell, Pat from KC, Pat, Lee, Joel, Tim Dodd (the Everyday Astronaut!), Ryan, Josh from Impulse, Joonas, Natasha Tsakos (pronounced Tszakos), Heiko, Will and Lars from Agile, Fred, Kris, Stealth Julian, Joakim (Jo-Kim), Theo and Violet, Jan, Steve, The Astrogators at SEE, and four anonymous—and hundreds of supporters.

Topics

• Adrian Beil (@BCCarCounters) / Twitter
• Adrian Beil, Author at NASASpaceFlight.com
• Off-Nominal - YouTube
• Episode 202 - Rapidly Adjusting (with Adrian Beil) - YouTube
• Following the Loss of Ship 36, SpaceX now Focuses on Rebuilding Masseys - NASASpaceFlight.com
• Jack Beyer on X: “Close up slow motion footage of the unexpected event(s) during Northrop Grumman’s BOLE DM-1 stb test today.”
• Northrop Grumman tests SLS Block 2 BOLE booster in Utah; nozzle issue seen - NASASpaceFlight.com
• ESA studying impacts of proposed NASA budget cuts - SpaceNews
• ESA moving ahead with ‘resilience from space’ satellite imaging program - SpaceNews

The Show

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Lori Garver, former NASA Deputy Administrator, joins me to talk about the chaos of the last week: the withdraw of Jared Isaacman’s nomination for NASA Administrator, Starship Flight 9, and of course, the wild public breakup of Elon Musk and President Trump.

This episode of Main Engine Cut Off is brought to you by 33 executive producers—David, Donald, Matt, Frank, Better Every Day Studios, Warren, Bob, Russell, Pat from KC, Pat, Lee, Joel, Tim Dodd (the Everyday Astronaut!), Ryan, Josh from Impulse, Joonas, Natasha Tsakos (pronounced Tszakos), Heiko, Will and Lars from Agile, Fred, Kris, Stealth Julian, Joakim (Jo-Kim), Theo and Violet, Jan, Steve, The Astrogators at SEE, and four anonymous—and hundreds of supporters.

Topics

• Musk-Trump dispute includes threats to SpaceX contracts - SpaceNews
• Isaacman: people with ‘axes to grind’ about Musk caused withdrawn NASA nomination - SpaceNews
• White House to withdraw Isaacman nomination to lead NASA - SpaceNews
• NASA Copes with Details of $6 Billion Budget Cut, Leadership Uncertainty – SpacePolicyOnline.com
• NASA withdraws support for conferences - SpaceNews
• Cruz seeks $10 billion for NASA programs in budget reconciliation bill - SpaceNews
• Starship breaks up on reentry after loss of attitude control - SpaceNews
• Status Update on ispace Mission 2 SMBC x HAKUTO-R Venture Moon | ispace

The Show

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Mark Albrecht joins me to talk about his time on the Trump 2024 Transition Team, the thinking behind some of the policy decisions we’re starting to see in the space and national security spheres, and more.

This episode of Main Engine Cut Off is brought to you by 33 executive producers—Joonas, The Astrogators at SEE, Will and Lars from Agile, Theo and Violet, Frank, Russell, Kris, Bob, Lee, Pat, Ryan, Fred, Matt, Heiko, Pat from KC, Joakim (Jo-Kim), Donald, Josh from Impulse, Stealth Julian, Jan, Steve, Better Every Day Studios, Warren, David, Joel, Natasha Tsakos (pronounced Tszakos), Tim Dodd (the Everyday Astronaut!), and four anonymous—and hundreds of supporters.

Topics

• Mark Albrecht (@MarkAlbrecht68) / X
• Falling Back To Earth: A First Hand Account Of The Great Space Race And The End Of The Cold War: Albrecht, Mark: 9780615447094: Amazon.com: Books
• Mark Albrecht on X: “Today concludes my service for the 47 transition team (4th time) We have charted a bold, aggressive, and urgent agenda for civil and national security space based on the direction and guidance of President Trump. It will be a golden era of US Space exploration, innovation…”
• Second Trump administration begins with confusion on acting NASA leadership - SpaceNews
• White House budget proposal would phase out SLS and Orion, scale back ISS operations - SpaceNews
• NASA budget proposal draws strong criticism - SpaceNews
• Space Force chief makes case for increased funding before House panel - SpaceNews

The Show

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• Artwork photo by NASA
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We take a tour of Marotta Controls in Montville, New Jersey, to see how they work, how they develop, produce, and test products at rate, and we learn about the most feared topic in space—valves!

This episode of Main Engine Cut Off is brought to you by 33 executive producers—Joonas, Josh from Impulse, Heiko, Donald, Stealth Julian, Warren, Kris, Frank, Steve, Bob, Better Every Day Studios, The Astrogators at SEE, Joakim (Jo-Kim), Fred, Matt, Pat from KC, Natasha Tsakos (pronounced Tszakos), Joel, Theo and Violet, Russell, Jan, Pat, Ryan, Tim Dodd (the Everyday Astronaut!), David, Will and Lars from Agile, Lee, and four anonymous—and hundreds of supporters.

Topics

• Controls Engineering | Control System Company | Marotta
• Space Controls | Spacecraft Control Systems | Marotta
• Marotta’s post with photos of my tour
• Brian’s photo of a thruster firing

The Show

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• Artwork photo by NASA
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Caleb Henry, Director of Research at Quilty Space, joins me to talk megaconstellations, the hypersonics industry, and more.

This episode of Main Engine Cut Off is brought to you by 33 executive producers—Joonas, Josh from Impulse, Heiko, Donald, Stealth Julian, Warren, Kris, Frank, Steve, Bob, Better Every Day Studios, The Astrogators at SEE, Joakim (Jo-Kim), Fred, Matt, Pat from KC, Natasha Tsakos (pronounced Tszakos), Joel, Theo and Violet, Russell, Jan, Pat, Ryan, Tim Dodd (the Everyday Astronaut!), David, Will and Lars from Agile, Lee, and four anonymous—and hundreds of supporters.

Topics

• Caleb Henry (@ChenrySpace) / X
• The OneWeb Book | Caleb Henry | Substack
• Quilty Space
• Armed services committees propose $150 billion funding boost for defense - SpaceNews
• Ursa Major wins $28.5 million Air Force contract to flight-test Draper engine for hypersonic use - SpaceNews
• United Airlines bumps GEO operators off fleet for Starlink Wi-Fi - SpaceNews
• Free Starlink Wi-Fi now on most Hawaiian Airlines transpacific fleet - SpaceNews
• Atlas launches first operational Project Kuiper satellites - SpaceNews
• Project Kuiper on X: “Take a look at this @ULAlaunch clip of the first Kuiper satellites being released into low Earth orbit approximately 280 miles above the planet. Deployment takes place over a 15-minute period after launch, with satellites released three at a time from the dispenser system.”
• Here’s your first look at Project Kuiper’s low-cost customer terminals
• Assessing Kuiper’s Satellite Manufacturing Delays — Quilty Space
• Elon vs EchoStar: Starlink’s RF Snitch Mission, Explained | QuickTakes — Quilty Space

The Show

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• Artwork photo by NASA
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