T+330: 10 Years of MECO
The show turned 10 last Monday, so I thought it would be fun to have our good friend Jake Robins on to look back at where we were then, what...
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Main Engine Cut Off
A short, weekly podcast about spaceflight, exploration, policy, and strategy in the modern era and near future.
Main Engine Cut Off Podcast Guide
Listen to Main Engine Cut Off, a Science & Medicine podcast by Dot First, LLC. Stream 331 episodes in English, follow new audio stories, and play episodes online on Radio and Podcast.
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T+329: Katalyst Space and the Mission to Boost Swift (with Ghonhee Lee, Founder and CEO)
Ghonhee Lee, CEO of Katalyst Space, joins me to talk about their upcoming mission to boost NASA’s Swift observatory, and how they are approa...
T+328: Pam Melroy, Former NASA Deputy Administrator and Space Shuttle Commander
Pam Melroy, Former NASA Deputy Administrator, Space Shuttle Commander, and three-time Shuttle astronaut, joins me to talk about space policy...
T+327: Artemis II, the Lunar Flyby Edition (with Paul Fjeld)
Artemis II completed their lunar flyby yesterday, and it was epic on all levels. Paul Fjeld and I discuss that and many other topics related...
T+326: Artemis II Underway
Artemis II is underway with a spectacular first day. This episode of Main Engine Cut Off is brought to you by 32 executive producers—Donald,...
T+325: Ignition
There was a lot of news in NASA’s Ignition event last week, and I break down what actually matters: not whether Jared Isaacman’s timelines a...
T+324: Impulse Space (with Tom Mueller, Founder and CEO)
Tom Mueller, Founder and CEO of Impulse Space, joins me to catch up on the company’s progress and plans—3 Mira missions flown, Helios soon t...
T+323: The Artemis Roadmap Shakeup
NASA Administrator Jared Isaacman announced a sweeping roadmap change to the Artemis program this morning—seemingly cancelling the EUS, Gate...
T+322: SpaceX Acquires xAI as it Prepares for IPO, Blue Origin Cancels New Shepard, and Artemis II Delayed (with Loren Grush)
Loren Grush, of Bloomberg, joins me to talk about SpaceX’s acquisition of xAI, its preparation for a potential IPO, Blue Origin’s cancellati...
T+321: Artemis II, New Glenn’s First Reflight, Blue Origin’s TeraWave, and Tory Bruno’s Job Switch
Artemis II is on the pad, and I can’t stop thinking about it. So I guess listen to me think in the open? Also, a ton of Blue Origin news—the...
T+320: NASA’s FY2026 Budget, the Isaacman Era, and the Eve of Artemis II (with Casey Dreier)
Casey Dreier of The Planetary Society joins me to talk about the NASA FY2026 budget, the early days of the Administrator Isaacman era, and h...
T+319: Headlines, December 22, 2025
A holiday special! Enjoy this week’s episode of Headlines free. It’s an absolute monster episode—way longer than usual Headlines episodes, I...
T+318: General Chance Saltzman, Chief of Space Operations, United States Space Force
Yesterday, I had the chance to visit the Pentagon and sit down with General Chance Saltzman, Chief of Space Operations—the head of the Unite...
T+317: Isaacman Renomination Hearing, Starliner Flights Cut, Starship at SLC-37, Zhuque-3 Almost Sticks the Landing, and More (with Stephen Clark)
Stephen Clark of Ars Technica joins me to talk about a ton of stories in the news—Jared Isaacman was back in front of Congress, a few Starli...
T+316: New Glenn’s Second Launch, First Landing, and Upgrade Roadmap
Blue Origin is fresh off an incredible few weeks—a successful second launch and first landing of New Glenn, followed by an exciting unveil o...
T+315: Autonomy in Space (with Simone D’Amico, DJ Bush, and Al Tadros)
Simone D’Amico of Stanford and EraDrive, DJ Bush of NVIDIA, and Al Tadros of Redwire join me to talk about autonomy in space, to get into th...
T+314: Jockeying for the Artemis 3 Lander, and the NASA Administrator Position
Thinking through the chaos that has ensued over the NASA Administrator role, the Artemis 3 lander acceleration movement, the SpaceX Starship...
T+313: Starlink, Kuiper, Project Bromo, and More (with Caleb Henry)
Caleb Henry, Director of Research at Quilty Space, joins me (in studio!) to talk about Starlink V3, Starlink satellite relay, Kuiper’s rollo...
T+312: Starship Flight 11, Space Policy, and Priorities (with Miles O’Brien)
Miles O’Brien, science correspondent for PBS News and CNN space analyst, joins me to talk about Starship Flight 11, the current space policy...
T+311: Phil McAlister on Commercial LEO and NASA’s Human Spaceflight Budget
Phil McAlister, former Director of NASA’s Commercial Space Division, joins me to talk about the Commercial LEO Destinations program, the bud...