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LC 39: Inside the AxEMU Spacesuit Reality Check

  • Sep 23, 2026
  • 19 min

Show notes

What the episode covers

On September 23, 2026, Landing the Moon breaks down a new NASA inspector general report (IG-26-006) warning that the AxEMU spacesuit has little to no schedule margin left before Artemis III's 2028 target. Hosts Max and Blake weigh Axiom's claim of over 700 crewed pressurized testing hours in the NBL pool against the IG's historical-average data, which suggests comparable suit programs typically take 8.7 years versus AxEMU's promised 3.4 years.

The episode covers the reported restructuring of Artemis III into a 2027 earth-orbital test of AxEMU and the landers ahead of two 2028 lunar landings, the inspector general's list of three alternate suit vendors, and a simplified spacesuit design NASA and Axiom are reportedly developing as a hedge. Max and Blake also unpack Axiom's public rebuttal on X, which cited over 950 hours of testing, a completed thermal vacuum test, and more than 1,300 delivered products, alongside CEO Jonathan Cirtain's direct response to the audit.

Max and Blake don't fully agree on whether the testing hours or the historical delay math should carry more weight, and they leave open whether a simplified suit means the full-capability version slips to a later mission.

Listeners should watch for further Axiom updates and any NASA announcements clarifying the Artemis III mission timeline in the weeks ahead.

Timeline

In this episode

8 moments worth skipping to. The timecodes match the player above.

  1. 0:15Introduction
  2. 1:51The IG Report Drops
  3. 5:08700+ Hours in the Pool
  4. 7:33The Math Behind the Delay
  5. 10:16Isaacman's Restructured Mission Plan
  6. 12:34The Simplified Suit Hedge
  7. 15:10Axiom Pushes Back
  8. 17:37Outro

Quick answers

Straight from the episode

The questions this one settles, without the listen.

What did the IG report (IG-26-006) find about the Artemis spacesuits?
The report, covering a September 2024 to March 2026 audit, found that both next-gen suits are at least a year and a half behind schedule. While Axiom is targeting late-2027 demos, the report notes that based on historical averages for similar programs, the timeline could actually stretch to 2031.
What did the 700+ hours of NBL testing actually prove?
The 700+ hours were crewed, pressurized EVA-task testing at the Neutron Buoyancy Lab (NBL), not simulations. However, the IG report doesn't provide a task-by-task breakdown, and the hosts noted that logging hours in subsystem qualification testing isn't the same as demonstrating full flight-ready integrated readiness.
Why does the report suggest a 2031 timeline instead of the promised 2027?
The math compares the promised 3.4-year development schedule against the roughly 8.7-year typical span for comparable suit programs historically. That ratio is what drives the risk of slipping to 2031, even though hundreds of hours of legitimate testing have already been logged.
How has NASA restructured the Artemis III mission plan in response to suit delays?
Reporting indicates NASA restructured Artemis III into a 2027 earth-orbital test of the AxEMU suit and landers, followed by two 2028 lunar landings. The inspector general also named three alternate suit vendors NASA could turn to if needed.
What is the 'simplified suit' hedge and what does it mean for AxEMU?
According to Space Explored's reporting, NASA and Axiom are developing a simplified spacesuit design as a backup option for Artemis. This raises an open question about whether it's smart risk insurance or a sign that the full-capability AxEMU suit isn't converging fast enough—and whether the full suit might slip to a later mission.
How did Axiom respond to the inspector general's audit?
Axiom pushed back publicly on X, citing more than 950 hours of crewed pressurized testing, a completed thermal vacuum test on the pressure garment, and over 1,300 products delivered toward critical design review. CEO Jonathan Cirtain also responded days later, defending the program's framing rather than disputing the underlying facts.

Transcript

The full conversation

Every word of the episode, 3,039 of them, in the order they were said.

Read the transcriptHide the transcript

MaxOkay, so get this. A brand new report just dropped, and the headline number is basically zero.

BlakeZero what?

MaxSchedule margin. As in NASA's moon suit has almost none left to hit twenty twenty-eight.

BlakeGreat.

MaxI knew you'd love that.

BlakeI'm Blake. This is Landing the Moon, and I'm Max's very concerned co-host.

MaxAnd I'm Max, and I'm just the guy who read the fun part first. Axiom Suit has logged over seven hundred hours of crewed testing in the pool.

BlakeHold on. Seven hundred hours sounds like real progress.

MaxIt does.

BlakeSo why is an inspector general using a phrase like little to no schedule margin when the hardware side has that many hours to show for itself?

MaxWait, you're already skeptical, and I haven't even given you the scary math yet.

BlakeThere's scary math?

MaxOh, there's scary math.

BlakeCan't wait.

MaxAnd there's a fallback plan floating around, a simplified suit.

BlakeA simplified suit.

MaxYes. Is that a smart hedge or a five-alarm fire? We are not answering that yet.

BlakeTease.

MaxThat's the job.

BlakeSo we've got hundreds of hours of testing on one side and a blunt federal assessment on the other, and those two things do not agree.

MaxNot even a little. And by the end of this episode, we're going to have walked through the math the inspector general actually used, NASA's mission restructuring it's reportedly leaning on to buy itself room, and what Axiom itself had to say once this report went public.

BlakeWhich, spoiler, they have plenty to say.

MaxPlenty. So buckle up.

BlakeLet's start with what actually landed in this report.

MaxA sheer pause. So who actually wrote this thing? Because the IG isn't a person.

BlakeFair. The report carries a designation, IG-26-006, and it's the tail end of an audit that ran from September twenty twenty-four to March twenty twenty-six.

MaxEighteen months of digging through Axiom's paperwork?

BlakeGive or take, yeah.

MaxThat's a lot of audit hours for one program.

BlakeIt's a big program. Two suppliers, two suits, and a lagging date that keeps getting closer.

MaxAnd what's the actual finding, not the headline?

BlakeThe IG's own summary says both of the next gen suits are at least a year and a half behind schedule, with Axiom aiming for late twenty twenty-seven demonstrations.

MaxWait, both suits? I thought this was an Axiom story. Collins is in there too on the ISS side.

BlakeRight. The other supplier.

MaxCollins keeps flying, ironically, because they're still the ones maintaining the old EMU suits on the station.

BlakeWait, the same company that couldn't deliver the new suit is propping up the old one?

MaxRight. But Axiom's the one on the hook for the moon landing, so that's where the pressure sets.

BlakeLate twenty twenty-seven demos. That's cutting it close to a twenty twenty-eight landing.

MaxClose is generous. And here's the part that got my attention.

BlakeGo on.

MaxThe report spells out what happens if this program tracks the historical average for suit development. It says the demonstrations would not occur until twenty-thirty-one.

BlakeTwenty thirty-one?

MaxTwenty thirty-one. That's not a slip. That's a different decade of Artemis. Basically.

BlakeOkay. Walk me through what historical average even means here. Are they comparing Axiom to Apollo-era suits?

MaxNo. This is Axiom's own delivery history and comparable NASA suit programs. The IG's saying, "Look at how long these things have actually taken before, not how long the contract says they'll take."

BlakeContracts optimistic, history less so. Shocking.

MaxGroundbreaking stuff from the inspector general.

BlakeSo you've got two totally different pictures of the same program. One side says, "Look how far we've come."

MaxAnd the other side says, "Look how far you still have to go against a date NASA didn't pick, Congress did."

BlakeThat's the actual tension, isn't it? Not whether Axiom's built real hardware. They clearly have.

MaxIt's whether real hardware moves fast enough to beat a political deadline that doesn't care about historical averages.

BlakeRight. And that's exactly where the testing numbers come in.

MaxThat number, more than seven hundred hours. We've said it, but we haven't said what it actually bought them.

BlakeLet's actually look at what that testing looked like.

MaxAnd that gap between hours and milestones is basically the whole story of this episode.

BlakeWhich is a good place to actually dig in.

MaxYeah, 'cause hours logged and milestones cleared are not the same thing. So what did those hours in the pool actually involve? Because crewed pressurized testing could mean a lot of things.

BlakeOkay, so get this. We're talking suited astronauts in the water at NASA's Neutral Buoyancy Lab running through actual EVA tasks. Not simulations, not mock-ups on a stand. Which tasks specifically?

MaxMobility drills, tool handling, the kind of stuff you'd need on the lunar surface. The IG report just says it happened. It doesn't walk through a task list.

BlakeRight. So we know the hours logged, not the checklist.

MaxExactly. And that's kind of the gap here. We get a number, not a rubric.

BlakeAerospace America ran a piece back in May framing this whole qualification campaign as roughly a year long.

MaxWait, before the IG report dropped?

BlakeBefore it went public, yeah. Aerospace America reported that NASA would have a much clearer picture within about a year of whether these suits are ready for a crewed landing.

MaxSo the outside world was already circling this exact window.

BlakeIndependently. That piece doesn't even reference the IG findings. It's just industry reporting landing on the same clock.

MaxWhich tells you the timeline pressure wasn't a secret. Everybody paying attention could see the year mattered.

BlakeHere's my actual question though. What counts as qualification testing versus something that's genuinely flight ready?

MaxThose are not the same thing.

BlakeThey're really not. Qualification testing proves a component or subsystem meets a spec under controlled conditions. It doesn't prove the integrated suit survives a full mission profile.

MaxSo logging hours is necessary.

BlakeBut it's not sufficient. You can rack up hours on subsystems and still not have flown the complete article.

MaxWhich is a very banker way of saying, "Don't get excited yet."

BlakeRight. I read filings for a living, Max. I don't get excited on the front end.

MaxFair, but that number still means something. It's not nothing.

BlakeIt's not nothing. It's just not the whole picture either.

MaxOkay, so where does that leave us?

BlakeWith a lot of activity and not a lot of clarity on how far along the suit actually is.

MaxSounds like real progress, though. Hours in the water, tasks getting run.

BlakeSure, but progress measured against what exactly?

MaxThat's the question, isn't it? Progress against the calendar.

BlakeSo let's put a number on that calendar and see how it holds up.

MaxOh, you're gonna love this part. Let's do the math. Okay, so here's the actual math. The Inspector General's report found the original schedule, 3.4 years from contract award to a test flight, was less than half of what these programs typically take.

BlakeLess than half?

MaxLess than half. The benchmark for comparable spacesuit development runs about 8.7 years.

BlakeSo they promised to do it in under 40% of the usual time.

MaxThat's the number.

BlakeWhistle. Okay, that's not a small gap. That's a different planet.

MaxAnd it's the basis for that 2031 scenario we already flagged. This is where that number actually comes from, the ratio, not a guess.

BlakeRight. It's not pulled out of the air. It's just if you build to the pattern every other suit program has followed, you land years past where Axiom is aiming.

MaxWhich is the tension. You've got a contractor saying late 2027 and a track record saying otherwise.

BlakePlot twist, the report doesn't say Axiom is wrong. It just says the odds are against the calendar.

MaxExactly, and that's the piece that should worry people more than any hours logged number.

BlakeBecause pool time doesn't buy you out of a base rate.

MaxNo, it doesn't. Base rates don't care how many splashdowns you've done.

BlakeOkay, that's dark, but fair.

MaxI'll take dark and fair over cheerful and wrong.

BlakeSo walk me through why the 8.7 number even holds up. Is that just, like, a couple of programs averaged together?

MaxThe report frames it as the typical span across comparable spacesuit efforts, contract to demonstrated flight. Doesn't matter which agency, which suit, which decade, they all land somewhere near that mark.

BlakeAnd Axiom is betting they beat that by more than half.

MaxWhich is a big bet.

BlakeA huge bet, and the report is basically saying, "Don't count it."

MaxSo we've got two stories running at once. Story one, hundreds of pool hours, real engineers, real progress. Story two, a schedule that history says probably won't hold.

BlakeBoth true at the same time. That's what makes this hard to call.

MaxIt's not a fraud story. It's not incompetence. It's just physics of how long these things take.

BlakeWhich nobody in the program controls by working harder.

MaxDude, that's kind of the whole nightmare of hardware development right there.

BlakeIt is.

MaxSo if the original math doesn't hold up, if 2028 is looking shakier than NASA wants to admit, what's actually happening on the agency side? Because they had to see this coming.

BlakeThey clearly did because there's a whole restructuring conversation happening around the mission plan itself.

MaxWait, restructuring, like changing what the suit even has to do?

BlakeThat's exactly where I wanna go next. Okay, restructuring. NASA's administrator apparently rewrote the whole mission sequence. Oh, this is the part I like. So instead of one big landing swing, Artemis III turns into a 2027 Earth orbital test of the suit and the landers together.

MaxNot on the moon.

BlakeNope, Earth orbit. Shake out Axiom, shake out the landers, and only then two actual lunar landings in 2028.

MaxSo the deadline stays 2028 on paper.

BlakeRight, but the thing everyone was scared of, a crew standing on the surface and a suit that's never flown, that gets pushed off the critical path.

MaxThat's a real structural change, not a press release.

BlakeIt also means the first time a crew relies on this suit for real, it's in a controlled environment with a quick trip home if something's wrong, not a four days from Earth on the lunar surface.

MaxThat's the kind of margin you actually want built into a program with this little schedule slack.

BlakeAnd buried in the same reporting, the inspector general apparently named three other companies NASA could turn to if Axiom's suit falls further behind.

MaxWait, three companies named in the report?

BlakeThat's what the reporting says, alternates on the shelf in case this slips again.

MaxSo is that smart risk management, or is that NASA quietly admitting the suit was never making the original date?

BlakeWhy not both?

MaxSure, but pick one for the audience.

BlakeFine. I think it's mostly the second thing wearing the costume of the first. You don't split a mission into an orbital test flight and name backup vendors for a suit you're confident in.

MaxI'd frame it differently. Splitting the mission into a rehearsal step is exactly what you do even in a program that was going fine. It buys a real test before you bet a crew's life on the surface.

BlakeSure, but you don't usually also line up three replacement vendors for a suit you're confident in.

MaxFair. The vendor list is the tell. The mission split alone I'd give them credit for.

BlakeAnd that's really the split we keep running into with this whole program, good engineering decisions sitting right next to evidence that nobody's confident in the calendar.

MaxWhich is a very polite way of saying the paperwork is hedging its bets.

BlakeSee? We agree. We just needed a argument to get there.

MaxThat's the job.

BlakeAnd speaking of hedges, there's a suit-level hedge in the works too.

MaxGo on. Okay, so here's the fallback nobody's officially calling a fallback yet.

BlakeGo on.

MaxSpace Explored reported this week that NASA and Axiom are working on a stripped-down version of the AxEMU for Artemis.

BlakeStripped down how?

MaxThe reporting doesn't give a parts list, Blake, just that they're simplifying the design.

BlakeThat's vague.

MaxIt is. But think about what a suit even has to do on the surface: mobility, life support, thermal protection, dust tolerance. You can descope some of that and still get boots on regolith.

BlakeSure, if the goal is a flag and photo mission instead of the science campaign they've been selling for years.

MaxRight, and that's the fork. Is this NASA being smart, building a leaner version that buys schedule room?

BlakeOr is it NASA quietly admitting the full AxEMU isn't converging fast enough to make its own date?

MaxExactly the argument.

BlakeI lean toward admission. You don't simplify a spacesuit for fun. Every gram and every joint on that thing got argued over for a reason. Cutting features means something upstream broke.

MaxCounterpoint, Apollo-era suits weren't loaded with sensors and mobility joints either, and those astronauts walked around just fine.

BlakeDifferent era, different bar. NASA's promised a lot more capability this time. Descoping now reads like a concession, not a design choice.

MaxOr it's insurance. You keep the full suit in development for the long program, and you build the cheap one so the Twenty Twenty-Eight date doesn't live or die on one piece of hardware.

BlakeThat's the generous read.

MaxI'm not saying it's generous. I'm saying it's rational. A political deadline doesn't care about your engineering roadmap.

BlakeNo argument there. But a Hedge only looks smart in hindsight. Right now it looks like NASA hasn't decided what is actually flying.

MaxWhich, given everything else in this program-

BlakeTracks

Max... tracks completely.

BlakeHere's my actual worry. If the Simplified Suit becomes the plan, does anyone tell the public that the full capability Moon suit slipped to some later mission?

MaxNo idea. Nothing in what's out there addresses that.

BlakeWhich is its own answer.

MaxFair. So where does Axiom land on all of this? Funny you ask, because they had thoughts.

BlakeOf course they did.

MaxTurns out getting your flagship contract described as behind schedule and getting a backup suit floated in the same news cycle didn't sit great over there. Okay, so Axiom did not sit quietly on this one.

BlakeNo plain text apology threat?

MaxNot exactly. They went straight to X.

BlakeAnd said what?

MaxGizmodo reported that Axiom's post cited over nine hundred fifty hours of crewed pressurized testing.

BlakeThat's more than the seven hundred plus number from the report itself.

MaxRight, a couple hundred hours higher depending on whose clock you're reading.

BlakeWhat else did they claim?

MaxThe same post said the pressure garment finished its first thermal vacuum test.

BlakeThat's a real milestone, actually. That's testing the suit survives temperature extremes, not just pool time.

MaxThermal vacuum testing is no joke either. That's simulating the actual environment on the lunar surface, not a swimming pool with better lighting.

BlakeSure, but passing one thermal vacuum test on the pressure garment isn't the same as passing it on the full integrated suit.

MaxAnd they said they delivered over Thirteen hundred products toward critical design review.

BlakeThirteen hundred parts signed off. That's a supply chain number, not a suit works number.

MaxStill, delivering Thirteen hundred products toward critical design review means the supply chain isn't the bottleneck anymore. Whatever else is.

BlakeMaybe. Or it just means the easy parts are done, and the hard integration work is still ahead.

MaxSure, but it's not Nothing.

BlakeIt's also not the schedule math.

MaxWait for it. There's a name attached to this too.

BlakeGo on.

MaxAxiom's CEO, a guy named Jonathan Certain, replied publicly just days after the audit dropped.

BlakeDefending the timeline?

MaxDefending the timeline. Talk of Titusville wrote it up. Certain pushing back on the framing, not the facts.

BlakeNotice he didn't dispute the eighteen-month slip. He disputed the vibe.

MaxThe vibe rebuttal?

BlakeI mean, if I'm Axiom, I'm doing the same thing. You don't get to pick your inspector general's math, but you do get to pick your press release.

MaxSo who's actually right here?

BlakeBoth of them, probably. Nine hundred and fifty hours and the passed thermal vacuum test are real. The IG's ratio is also real. One side's counting inputs, the other's counting odds, and neither number cancels the other out.

MaxIt's like two accountants auditing the same company and both being technically correct.

BlakeWhich is exactly why nobody outside this program should treat either number as the final word.

MaxGreat, so we're stuck holding two spreadsheets.

BlakePretty much.

MaxSo where does that leave the actual date?

BlakeAsk the question, isn't it? Twenty twenty-eight is still on NASA's books.

MaxFor now.

BlakeLet's talk about what we're actually watching for between now and then.

MaxOkay, prediction time. You go first.

BlakeFine. I think within a month, Axiom puts out another number, hours, products delivered, something bigger than the last one.

MaxA stat arms race.

BlakeBasically. But I don't think we get a date change, not yet.

MaxI'll take the other side of that. I think NASA quietly confirms the Simplified Suit is real hardware, not a concept sketch, before the year's out.

BlakeConfirms it how?

MaxA procurement notice, a budget line, something boring and bureaucratic that tells us it's funded.

BlakeHuh, that's actually specific enough to check.

MaxThat's the job.

BlakeMy second one, the mission restructuring gets a name. Right now it's reportedly. I think NASA puts a formal designation on the twenty twenty-seven orbital test within this Congress.

MaxAnd if none of that happens?

BlakeThen we come back on this show and say we were wrong, out loud.

MaxI love that we're on the record for this.

BlakeThat's the point of doing it.

MaxAll right, mark the calendar. We're revisiting both of these.

BlakeEvery one of them.

MaxIf your head is spinning from all the acronyms and audit numbers, First, welcome. That's the whole show.

BlakeHonest advertising.

MaxSend this episode to somebody who thinks Artemis III is a done deal.

BlakeAnd hit subscribe because we're going to keep score on this one.

MaxWe will.

BlakeSuits, landers, dates, none of it's finished, and neither are we.

MaxSee you next time.

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