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404 points voxleone | 22 comments | | HN request time: 1.855s | source | bottom
1. bhouston ◴[] No.45655419[source]
Is this realistic? Doesn't the development timelines for a new large rocket stretch into more than a decade? Unless someone else had one under development...

Could this just be a pressure tactic on SpaceX?

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2. rsynnott ◴[] No.45655501[source]
As mentioned in the article (of course I realise we mustn't read those here) Blue Origin is supposed to be providing a lander in 2030 in any case (https://en.wikipedia.org/wiki/Artemis_V), so doesn't seem like a _huge_ stretch.

Somewhat surprised they've waited this long, under the circumstances.

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3. madaxe_again ◴[] No.45655566[source]
This contract isn’t for launch - that will be SLS (in theory) - rather for the lander.
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4. loourr ◴[] No.45655731[source]
Which highlights how unserious this whole thing is. SLS hardly works and is way behind schedule.
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5. ◴[] No.45655805{3}[source]
6. chasd00 ◴[] No.45655840[source]
I was about to post that Blue Origin is the only possible candidate for a competitor to SpaceX and they're not even close. More competition is needed but it's like saying more competition is needed for the hyperscalers, going from zero to on par is very hard and even with the time and money you still need the talent.
7. ACCount37 ◴[] No.45655845[source]
Blue Origin is explicitly named in Duffy's statement. And if SpaceX's Starship HLS catches enough delays, they can slide into Blue Origin's Blue Moon HLS timeline - which is now being developed for Artemis 5, in 2030.

On top of working on a HLS lander, Blue Origin has a pretty large rocket developed already - New Glenn. They just don't have the reusability or the launch cadence, and their HLS needs at least two launches. So far, New Glenn has only ever flown once, with the first stage recovery attempt being unsuccessful. But they may get it into a good shape in time.

I do think that Artemis 3, currently stated for 2027, will be eventually delayed to ~2030, for many reasons. But I wouldn't trust Blue Origin to deliver before SpaceX even if they started the development at the same exact time, and they didn't. SpaceX is, by aerospace standards, a lean and mean company. SpaceX sets unhinged hyper-aggressive "if we lived in a perfect world" timelines, and delivers late. Blue Origin sets reasonable aerospace timelines, and still delivers late.

Blue Moon HLS is considerably less complex than Starship HLS, but it has a lot of the same milestones in front of it - including in-orbit propellant storage and fuel transfers from one vehicle to another. And currently, they certainly don't seem to be ahead of where SpaceX is now with Starship.

Other than Blue Origin and SpaceX? I just don't see anyone being able to squeeze out a HLS candndate in time for 2030. Who else is there in the space, with anywhere near the expertise? Firefly? Boeing?

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8. floating-io ◴[] No.45656020[source]
> Blue Moon HLS is considerably less complex than Starship HLS

That's the one thing in your comment I disagree with. Starship-based HLS has basically one base vehicle, modified into three variants (tanker, depot, and the lander itself). Refueling is done in LEO.

Blue Origin's HLS has three completely unique vehicles with no commonality (New Glenn, Transporter, and the lander), and refuels in multiple orbits, one of which is NRHO, which is likely to be far more challenging. And they're doing it with hydrogen.

Blue Origin's Mk1 cargo lander is simpler; their HLS architecture is not.

JMHO.

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9. ACCount37 ◴[] No.45656574{3}[source]
I do think that Blue Origin HLS is less complex overall, but I agree that they aren't dealing with the same kind of complexity. Both companies are playing to their strengths there.

A major weakness of SpaceX's HLS approach is that it requires them to launch a lot of the same vehicle in a fairly short succession. But SpaceX are the kings of high volume aerospace manufacturing, and they are the driving force behind US launch cadence going up. Even if Starship reusability isn't truly perfected in time for Artemis HLS, they are already building those Starships pretty fast, and can eat some refueling vehicle losses.

Blue Origin doesn't have the raw performance figures of Starship, or SpaceX's unmatched manufacturing and launch cadence. So their HLS architecture is lighter and less launch hungry. That comes at an engineering cost of having to use more specialized vehicles. And they are using LH2 fuel - which delivers more of a punch per weight, but is even harder to stay on top of than CH4. More engineering effort would be required to store and transfer that in orbit, dealing with boil-off and all - but Blue Origin has used liquid hydrogen extensively already, so they have experience with it.

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10. terminalshort ◴[] No.45660012[source]
SpaceX is years behind schedule. Blue Origin is decades behind schedule.
11. mrieck ◴[] No.45660581[source]
Sir! Elon has responded to our pressure tactic. Your interview seems to have had an effect. "Well - what did he say?" It's better if you see for yourself.

GIF reply "why are you gae" (this was his actual response btw)

12. floating-io ◴[] No.45661587{4}[source]
Complexity vs. Tedium. There's a difference.

The SpaceX approach requires a lot of launches, but they're already proven experts at that. They've launched something like 130 rockets this year alone. That's one every couple of days.

High launch cadence is not complexity for SpaceX. It's normal for them. After the first half dozen or so refuels, it will be second nature, just like delivering satellites with Falcon is.

And they are, in essence, developing a single craft for it, just with a few variations.

Blue's architecture requires three distinct vehicles. Each one has to be developed separately. Then we get to the launch; last I saw, here is the comparison:

SpaceX:

* Launch the Depot

* Launch N tankers to fill the depot (this is the tedium I mentioned).

* Launch the HLS to LEO

* Refill the HLS in LEO

* Send the HLS to NRHO

* Rendevous with Orion in NRHO and transfer people

* Land on and then return from the moon

* Rendevous with Orion in NRHO and transfer people back.

That's a fairly complex architecture, but let's compare that against the last I saw of Blue's [1]:

* Launch the Transporter to LEO

* Launch tankers and refill the Transporter

* Launch the Lander to LEO "dry"

* Fill the Lander from the Transporter

* Send Lander to NRHO

* Launch tankers and refill the Transporter

* Raise Transporter to "stairstep" orbit

* Launch tankers and refill the Transporter again

* Send the Transporter to NRHO

* Refill the Lander again in NRHO

* Rendezvous with Orion and transfer people

* Land on moon and return with people

* Rendezvous with Orion and transfer people back

That is far more complex than what SpaceX is proposing.

The number of tanker launches is really quite irrelevant for both in this context. It's less risky for SpaceX due to their extensive ops experience, but both will be fine there I think. That's just tedium for both of them.

The complexity comes in with the number of operations and precisely where BO is doing the refueling. I'm not terribly worried about the LEO ops; they'll manage those. The NRHO refuelling though? That one strikes me much riskier if only due to comms lag.

And the sheer number of steps in Blue's architecture seems crazy to me.

So no, I can't agree that Blue's architecture is in any way simpler. Quite the opposite, in fact.

[1] https://ntrs.nasa.gov/api/citations/20250008728/downloads/25... :: the last slide in the set.

(edit: formatting)

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13. robryan ◴[] No.45661951[source]
New Glen was meant to fly something around 6 times this year. At this point the best they will do is one additional launch to go with their first launch in January. Hard to see them doing any better timeline wise than SpaceX.
14. cubefox ◴[] No.45663271{5}[source]
I think the main problem for Starship is that they need to do a large number of tanker launches (about 20 I believe) in a timeframe in which the propellant in the LEO depot doesn't boil off. I assume they need to develop some good sun shielding for that. 20 launches could take quite a long time (multiple months? a year?) since it will probably take quite a few years till Starship, especially the upper stage, is rapidly reusable. They can't wait that long with Artemis 3, with Sean Duffy adding pressure.
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15. floating-io ◴[] No.45663508{6}[source]
On launches, it's conceivable that they can do the launches in 20 days if they do one a day. I ignore reusability, because I don't see it as required to meet the need.

They're known for moving fast, and they're building multiple pads. They're also building enormous mass manufacturing facilities in the background of all this (Gigabay and whatever). Not sure how many ships they'll be able to produce per month once the design is nailed down, but I'll bet it will surprise everyone.

SH Boosters are already effectively reusable for the purposes of this discussion; a couple of them have already re-flown. That's half the battle right there.

Boiloff prevention is presumably one of the main modifications needed for the depot. I think it's supposed to be easier with methalox than with hydrolox (which BO is using), but I have no idea the particulars of what they'll have to do there to achieve effectiveness. That said, I wouldn't be surprised if they try to cut that corner at least once; should be interesting.

The big risk that I see is neither launch nor boiloff, but rather simple fuel availability. Can they get that much methane and LOX shipped around the country that fast? I have no idea, but it seems concerning to me. Logistics...

Thing about the deadline, though, is who's going to do it faster? Blue has worse issues with their current crewed lander proposal. Nobody else has even started on one AFAIK.

My prediction is that nobody can build and fully qualify a safe moon lander with a more or less clean-sheet design in three years.

On the other hand, I can easily see Starship succeeding in a moon landing in three or four years if things go well with V3 and the refuelling research. It's a stretch -- things aren't likely to go completely smoothly -- but it's conceivable.

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16. zugi ◴[] No.45664798[source]
> Could this just be a pressure tactic on SpaceX?

Yes! I'm disappointed I had to scroll down so far to see this. The CNN headline isn't even accurate. The actual NASA statement is:

> "I’m going to open up the contract. I’m going to let other space companies compete with SpaceX."

SpaceX is behind schedule, but still years ahead of its competitors. No one is even in the same ballpark on the main metric that ultimately matters: dollars per kilogram to orbit. The main effect of this NASA statement, or of NASA sending a few dollars to SpaceX's competitors, is to give SpaceX a kick in the pants.

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17. cubefox ◴[] No.45666995[source]
I think SpaceX can't accelerate much. They are already operating on a higher speed than (arguably) any other space company.
18. mortarion ◴[] No.45667719{3}[source]
> Refueling is done in LEO.

Look up how many refueling launches are required and you'll see the problem, especially because no matter if Elon says so, the upper stage will never be reusable, even if caught.

Every moon mission will require that they pre-build a HLS and probably 15 full stacks.

Ridiculous.

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19. floating-io ◴[] No.45670733{4}[source]
You're welcome to believe that. Visible progress to date suggests otherwise to me; I pretty much ignore what Elon says as much as possible. Besides, however ridiculous, 15 full stacks would still be cheaper than a single SLS launch in all likelihood.

Even if I'm wrong, though, it wouldn't invalidate the point I'm making in this thread: BO's Mk2 has the exact same issues in a more complex architecture.

20. cubefox ◴[] No.45673643{7}[source]
In 2024, SpaceX had one Falcon 9 launch per 2.8 days, after having been operational for several years. The first Falcon 9 was used in 2014, and the first booster reused in 2017. It seems it will take years for Starship to match and exceed that flight rate. Of course, Blue Origin faces other difficulties, as you mentioned, and they have a much more distant deadline (Artemis 5). But at this point I don't quite see Artemis 3 happening before a Chinese moon landing, with a much simpler approach that doesn't include any complexities comparable to what SpaceX is facing with its HLS. (As others mentioned, I don't think that's a major problem, as manned space flight is mostly done for abstract prestige, and the US already had Apollo.)

> My prediction is that nobody can build and fully qualify a safe moon lander with a more or less clean-sheet design in three years.

I tend to agree, though there are possible solutions that are technically simpler (if less ambitious) than either Starship or Blue Moon, while not even requiring SLS. Though it is probably too late now to try those. It's all the more surprising that Lockheed Martin still tries to offer an alternative solution:

> In a statement to Reuters, Bob Behnken, vice president of Exploration and Technology Strategy at Lockheed Martin's space unit, said the company this year has been conducting "significant technical and programmatic analysis for human lunar landers."

> "We have been working with a cross-industry team of companies and together we are looking forward to addressing Secretary Duffy's request to meet our country’s lunar objectives," said Behnken, a retired NASA astronaut.

https://www.reuters.com/science/us-seek-rival-bids-artemis-3...

But their offer would likely be very expensive, and it would be very questionable whether it can be faster than Starship HLS. So I don't think they will receive a contract.

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21. cubefox ◴[] No.45673809{4}[source]
> Look up how many refueling launches are required and you'll see the problem, especially because no matter if Elon says so, the upper stage will never be reusable, even if caught.

The Space Shuttle was reusable, and SpaceX is using an improved variant of the Space Shuttle heat shield, so it seems quite certain that Starship will be reusable. The question is more: how much refurbishment will it need? The Space Shuttle required extensive amounts. SpaceX will likely be able to improve on that a lot, though it isn't clear how long it will take.

22. floating-io ◴[] No.45676714{8}[source]
I'll be surprised if the noises coming out of LM are anything other than PR, but it's not impossible. That said, I agree, it would probably be far too expensive if it did happen.

I look forward to seeing what happens with all this. :)