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A short, weekly podcast about spaceflight, exploration, policy, and strategy in the modern era and near future.
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...
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...
Pam Melroy, Former NASA Deputy Administrator, Space Shuttle Commander, and three-time Shuttle astronaut, joins me to talk about space policy...
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...
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,...
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...
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...
NASA Administrator Jared Isaacman announced a sweeping roadmap change to the Artemis program this morning—seemingly cancelling the EUS, Gate...
Loren Grush, of Bloomberg, joins me to talk about SpaceX’s acquisition of xAI, its preparation for a potential IPO, Blue Origin’s cancellati...
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...
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...
A holiday special! Enjoy this week’s episode of Headlines free. It’s an absolute monster episode—way longer than usual Headlines episodes, I...
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...
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...
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...
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...
Thinking through the chaos that has ensued over the NASA Administrator role, the Artemis 3 lander acceleration movement, the SpaceX Starship...
Caleb Henry, Director of Research at Quilty Space, joins me (in studio!) to talk about Starlink V3, Starlink satellite relay, Kuiper’s rollo...
Miles O’Brien, science correspondent for PBS News and CNN space analyst, joins me to talk about Starship Flight 11, the current space policy...
Phil McAlister, former Director of NASA’s Commercial Space Division, joins me to talk about the Commercial LEO Destinations program, the bud...
NASA selected Blue Origin to (maybe) deliver the once-cancelled VIPER rover, modified Sierra Space’s ISS resupply contract which likely puts...
Caleb Henry, Director of Research at Quilty Space, joins me to talk about EchoStar’s spectrum sales and constellation cancellation, SpaceX’s...
Casey Handmer, Founder of Terraform Industries, joins me to talk about the state of NASA in 2025, talent acquisition and retention, producti...
Tom Marotta of The Spaceport Company joins me to talk about the executive order this week focused on commercial space regulatory reform, wha...
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 Vehic...
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...
Lori Garver , former NASA Deputy Administrator, joins me to talk about the chaos of the last week: the withdraw of Jared Isaacman’s nominati...
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 star...
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...
Caleb Henry, Director of Research at Quilty Space, joins me to talk megaconstellations, the hypersonics industry, and more. This episode of...
Jared Isaacman was in Congress for a confirmation hearing for his nomination as NASA Administrator, which was followed up by reports of huge...
Eric Berger of Ars Technica joins me to talk about his recent interviews with Butch and Suni in the aftermath of their flight, the update NA...
Eric Schmidt has taken a majority stake in Relativity and will serve as its CEO, so this is a good time to check in on their plans. Rocket L...
Josh Dinner of Space.com joins me to talk about a wild week in space—Firefly’s Blue Ghost 1, Intuitive Machines’ IM-2, SpaceX’s Starship Fli...
Former Congressman and NASA Administrator Jim Bridenstine joins me to talk space policy, then and now: CLPS, Commercial Space Stations, Arte...
Matthew Weinzierl and Brendan Rosseau join me to talk about their new book, Space to Grow: Unlocking the Final Economic Frontier . We talk a...
Eric Berger of Ars Technica joins me to talk about Elon Musk and the whirlwind start of the second Trump administration, and what the future...
Jonathan McDowell—astrophysicist at Harvard-Smithsonian Center for Astrophysics and the namesake of the McDowell Line at 80 kilometers—joins...
Blue Origin flew New Glenn successfully for the first time, and SpaceX flew Starship for the seventh time. Both featured failures at differe...
Axiom Space announced changes to their station build out plan, bringing free-flying capability forward in their timeline and switching to a...
Jared Isaacman, the man with a private space program, has been nominated NASA Administrator, to run the nation’s space program. This episode...
A special preview of MECO Headlines, covering Starship Flight 6, ABL’s pivot to missile defense, and much more. Subscribe today to get Headl...
Donald Trump has been reelected President of the United States, and the main character of spaceflight, Elon Musk, is one of his top advisors...
Jared Isaacman of the Polaris Program joins me to talk about the Polaris Dawn mission, his EVA experience, the Hubble Space Telescope situat...
SpaceX is entering a new era for Starship after the epic Flight 5, with its pinpoint ship reentry and staggeringly beautiful booster catch....
SpaceX and the FAA have been going a few rounds back and forth in public over fines and delays. It’s weird and inscrutable but maybe helpful...
Andy Lapsa, Co-Founder and CEO of Stoke Space, joins me to talk about the company, their vision for the future, their approach to launch, th...
Jeff Foust of Space News joins me to talk about Starliner, Fram2, VIPER, Blue Moon, and everything else going on in space. This episode of M...
Mark Albrecht joins me to talk about the state and future of space policy in a very dynamic Presidential election year. He shares some stori...
Andrew Rush returns to the show to talk about his new venture, Star Catcher . They are working to build an energy grid in space, beaming ene...