In his famous 1962 address to Rice University, President Kennedy declared,

We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard . . .

The current administration has chosen, among other things, to go to Mars. Some, Elon Musk included, are looking for a backup planet to Earth. For others, like Robert Zubrin, Mars is an opportunity for scientific discovery, pure challenge, and a revitalized human civilization.

Today on Faster, Please — The Podcast, Zubrin and I discuss how to reorient NASA, what our earliest Mars missions can and should look like, and why we should go to Mars at all.

Zubrin is the president of aerospace R&D company Pioneer Astronautics, as well as the founder and president of the Mars Society. He was also formerly a staff engineer at Lockheed Martin. He has authored over 200 published papers and is the author of seven books, including the most recent, The New World on Mars: What We Can Create on the Red Planet.

For more, check out Zubrin’s article in The New Atlantis, “The Mars Dream is Back — Here’s How to Make It Actually Happen.”

In This Episode

* Colonization vs. exploration (1:38)

* A purpose-driven mission (5:01)

* Cultural diversity on Mars (12:07)

* An alternative to the SpaceX strategy (16:02)

* Artemis program reform (20:42)

* The myth of an independent Mars (24:17)

* Our current timeline (27:21)

Below is a lightly edited transcript of our conversation.

Colonization vs. exploration (1:38)

I do think that it is important that the first human mission to ours be a round-trip mission. I want to have those people back, not just because it's nice to have them back, but I want to hear from them. I want to get the full report.

Pethokoukis: Just before we started chatting, I went and I checked an online prediction market — one I check for various things, the Metaculus online prediction market — and the consensus forecast from all the people in that community for when will the first humans land successfully on Mars was October 2042. Does that sound realistic, too soon, or should it be much further away?

I think it is potentially realistic, but I think we could beat it. Right now we have a chance to get a Humans to Mars program launched. This current administration has announced that they intend to do so. They're making a claim they’re going to land people on Mars in 2028. I do not think that is realistic, but I do believe that it is realistic for them to get the program well started and, if it is handled correctly — and we'll have to talk a lot more about that in this talk — that we could potentially land humans on Mars circa 2033.

When I gave you that prediction and then you mentioned the 2020s goal, those are about landing on Mars. Should we assume when people say, “We're going to land on Mars,” they also mean people returning from Mars or are they talking about one-way trips?

Musk has frequently talked about a colonization effort, and colonization is a one-way trip, but I don't think that's in the cards for 2028 or 2033. I think what is in the cards for this time period on our immediate horizon is exploration missions. I do think that we could potentially have a one-way mission with robots in 2028. That would take a lot of work and it's a bit optimistic, but I think it could be done with determination, and I think that should be done, actually.

To be clear, when people are talking about the first human mission to Mars, the assumption is it's not a one way trip for that astronaut, or those two astronauts, that we intend on bringing them back. Maybe the answer is obvious, but I'm not sure it's obvious to me.

From time to time, people have proposed scenarios where the first human mission to Mars is a one-way mission, you send maybe not two but five people. Then two years later you send five more people, and then you send 10 people, and then you send 20 people, and you build it up. In other words, it's not a one-way mission in the sense of you're going to be left there and your food will then run out and you will die. No, I don't think that is a credible or attractive mission plan, but the idea that you're going to go with a few people and then reinforce them and grow it into a base, and then a settlement. That is something that can be reasonably argued. But I still think even that is a bit premature. I do think that it is important that the first human mission to ours be a round-trip mission. I want to have those people back, not just because it's nice to have them back, but I want to hear from them. I want to get the full report.

A purpose-driven mission (5:01)

In the purpose-driven mode, the purpose comes first, you spend money to do things. In the vendor-driven mode, you do things in order to spend money. And we've seen both of these.

So should we just default to [the idea] that this mission will be done with government funding on SpaceX rockets, and this will be a SpaceX trip? That's by far the most likely scenario?

This is going to need to be a public-private partnership. SpaceX is rapidly developing the single most important element of the technology, but it's not all the technology. We need surface systems. We need the system for making rocket fuel on Mars because the SpaceX mission architecture is the one that I outlined in my book, The Case for Mars, where you make your return propellant on Mars: You take carbon dioxide and water, which are both available on Mars, and turn them into methane and oxygen, which is an excellent rocket fuel combination and which, in fact, is the rocket fuel combination that the Starship uses for that reason. So that's the plan, but you need the system that makes it

We're going to need surface power, which really should be a nuclear power source and which is difficult to develop outside of the government because we're talking about controlled material. Space nuclear reactors will need to use highly enriched uranium, so it should be a partnership between NASA and SpaceX, but we're going to have to reform NASA if this is going to work. I think, though, that this mission could be the vehicle by which we reform NASA. That is, that NASA Artemis moon program, for example, is an example of how not to do something.

That's the current government plan to get us back to the moon.

Right. But you see, NASA has two distinct modes of operation, and one I call the purpose-driven mode and the other is the vendor-driven mode. In the purpose-driven mode, the purpose comes first, you spend money to do things. In the vendor-driven mode, you do things in order to spend money. And we've seen both of these. To be fair, there's been times when NASA has operated with extreme efficiency to accomplish great things in very short amounts of time, of which, of course, the Apollo Program is the most well-known example where we got to the moon and eight years from program start. The difference between Apollo and Artemis was it wasn't human nature — and there were plenty of greedy people in the 1960s that, when the government's spending money, they want a piece of the action, they were all there.

There's no shortage of people who, when you’ve got a lot of money to spend, are willing to show up and say, “Hi, you got a great idea, but you can't do it until you fund me.” And there were plenty of them then, but they were shown the door because it was clear that if we did all these side projects that people were trying to claim were necessary (“you can't do your program until you do my program”) we would not make it to the moon by 1969. So actually, the forcing function was the schedule. That's what forced the nonsense out of the room.

Artemis, on the other hand, has been undertaken as a project whose leadership thought that they could secure a lot of support for the program if they gave a lot of people money. So Artemis has five different flight systems which are incompatible with each other. It's a ridiculous program. That's not the way to do things. We have to have a program leadership which is committed to humans-to-Mars not as a way to get pet technology programs funded, or pet constituencies funded, or pet vendors funded, or any of that stuff. It's got to be: the mission comes first. And if you have that kind of emphasis on this, this can be done and it can be the way to reform NASA.

I liken NASA today to a peacetime military, but then it gets thrown into battle, and you get rid of your McClellans and you bring in your Grants. In other words, you have a certain period of chaos and disorganization because you've got deadwood running the place, but under the stress of actually beginning a decisive mission and not being tolerant of anything less than real performance, you actually get the army you need.

So that sounds like that's a presidential decision, to give that agency a very specific goal, and perhaps a timeline, to create that kind of purpose-driven culture.

Yes. Now that's one necessity. There's another necessity as well, which is that the conceptual base of this program, the political base, if you will, which is derived from its intellectual base, has got to be expanded. This cannot be seen as a Trump-Musk boondoggle because Trump and Musk have both defined themselves in extremely partisan terms, and if this is seen as their program and not America's program, it will be gone as soon as the political fortunes of war shift, which they always do. Musk has this concept that he's been promoting, which is the reason why we have to go to Mars is so that there'll be survivors on Mars after the Earth is destroyed, and I don't think this is particularly —

You don't find that a compelling reason, given that there's not currently an obvious threat of us being destroyed, to run a program that could necessarily exist over multiple administrations and be quite expensive.

That idea is derived from Isaac Asimov’s Foundation novel: The scientists go to the planet Terminus so they can reestablish civilization after the Galactic Empire collapsed. It may please science-fiction fans, but I don't think it's attractive to the general public, and also, frankly, I don't think it's practical. I don't think a Mars colony could have a million people on Mars that will survive as an autarchy. There's no nation on earth that survives as an autarchy. The ones that try are extremely poor as a result for trying.

The correct reason to go to Mars is, immediately, for the science, to find out the truth about the prevalence of diversity of life in the universe; for the challenge, to challenge our youth, learn your science and you can be an explorer and maker of new worlds; and for the future, but for the future, it's not for a few survivors to be hiding away after the earth is destroyed, it's to create a new branch, or perhaps several new branches, of human civilization which will add their creative inventiveness to human progress as a whole, as America did for Western civilization. By establishing America, you had a new branch of Western civilization which experimented in everything from democracy to light bulbs and airplanes and greatly enhanced human progress as a result.

And the Martians, you are going to have a group of technologically adept people in a frontier environment that's going to challenge them. They're going to come up with lots of inventions that they need for their own progress, but which will benefit human as a whole. And that is why you should colonize Mars.

Cultural diversity on Mars (12:07)

I believe that there will . . . be many colonies on Mars established by different people with different ideas on what the ideal civilization should be, and the ones with the best ideas will attract the most immigrants and therefore outgrow the rest.

It very much reminds me of the scenario laid out in The Expanse book and TV series where mankind has spread throughout the solar system. They're all branches of human civilization, but being out there has changed people, and Mars is different than Earth. Mars has a different society. The culture is different. I think that's a very interesting reason that I had not heard Elon Musk discuss.

I have a book called The New World on Mars, which you might want to check out because I discuss this very thing. I believe that there will, once it's possible to colonize Mars, there'll be many colonies on Mars established by different people with different ideas on what the ideal civilization should be, and the ones with the best ideas will attract the most immigrants and therefore outgrow the rest. So, for example, the one thing I disagree with about The Expanse is they have this militaristic Spartan civilization on Mars.

There's just one sort of universal culture.

Yeah, and I don't think that that civilization would attract many immigrants. The reason why the American North outgrew the South is because the North was free. That's why all the immigrants went to the North. That's why the North won the Civil War, actually. It had a larger population of more industry because all the immigrants went there and became far more creative. This is a very good thing, that the form of civilization that ultimately prevails on Mars will be one, I think, that will offer human freedom and be the most attractive in as many other respects as possible. That's why it will prevail, because it will attract immigrants.

But I want to get back to this program. If it is possible not to land humans on Mars in 2028, but to land — if you can land Starship on Mars, you can land not a robot, but a robotic expedition.

Starship, Musk claims it could land 100 tons on Mars. Let's say it could land 30. That's 30 times as much as we can currently land. The JPL (Jet Propulsion Laboratory)-led Mars science community, they're still thinking about Mars exploration in the terms it's been done since the ’60s, which is single spacecraft on single rockets. Imagine you can now land an entire expedition. You land 30 rovers on Mars along with 30 helicopters that are well instrumented and a well instrumented science lab in it. So now you are bringing not only heavy lift, but heavy lander capability to the Mars science program, and now you have a robotic expedition on Mars. For every instrument that made it onto perseverance, there were 10 that were proposed because they could only take six, and like 100 teams wanted to get their instruments on the rover. So imagine now we can actually land 30 rovers and 30 helicopters, not little ones like Ingenuity, but ones that can carry five or six instruments each themselves.

So now you have 100 science teams, you've got life-detection experiments, you've got ground penetrating radar, you've got all sorts of things that we haven't done on Mars all being done. You're expanding Mars science by two orders of magnitude by bringing into existence the kind of transportation capability that is necessary to enable humans to Mars. So now you bring on board the science community and the science-interested public, which includes all parts of the political spectrum, but frankly it leans somewhat left, overall — university scientists, people like this.

So now this isn't just about Elon Musk, the Bond villain. This is about what we as America and we as a culture which is committed to pushing the boundaries of science. This is what we are doing. It's not what SpaceX is doing, it's not what Musk is doing, it's not what Trump is doing, it's what America is doing, and celebrating the highest values of Western civilization, which is the search for truth.

An alternative to the SpaceX strategy (16:02)

Starship plus Starboat is the flight hardware combination that can do both the moon and Mars.

That said — and we're talking about this being a public-private partnership —should we just default into thinking that the private part is SpaceX?

Well, SpaceX is one part of it. There's no question, to me anyway —

There's other companies that are building rockets, there’s other rocket companies, maybe they aren't talking about Mars, but Blue Origin’s building rockets.

I think it should be fairly competed, but SpaceX is well ahead of anyone else in terms of a booster capability. That said, I think that the mission architecture that Musk has proposed, while workable, is not optimal, that there needs to be another vehicle here. He's got the Starship, I want to have a Starboat. I've written an article about this, which was just published in The New Atlantis.

Basically, the problem with Musk’s architecture is that the direct return from Mars using a Starship, which is a 100-ton vehicle, would require manufacturing 600 tons of methane oxygen on the surface of Mars, and if that's to be done in a reasonable amount of time, requires 600 kilowatts, which is about 13 football fields of solar panels, which means we're not doing it with solar panels, which means it has to be done with a nuke, and that then adds a lot to the development.

If we had a Starboat, which is something 10 to 20 percent the size of Starship, but it would go from Mars orbit to the surface and we refuel it, and then it is what takes the crew down to the surface — although the crew could go one way to the surface in a Starship, that's okay, but whether they go down in a Starship or down in a Starboat, they come up in a Starboat, and now you're reducing the propellant requirement by an order of magnitude. It makes this whole thing work much better. And furthermore, Starship plus Starboat also enables the moon.

We've forgotten about the moon in this conversation.

Starship plus Starboat is the flight hardware combination that can do both the moon and Mars. If you take the Starship version of the Artemis thing, it takes 10 to 14 Starship launches to land a single crew on Mars refueling Starship on orbit, then refueling it in lunar orbit, and with tankers that have to be refueled in earth orbit, and doing all this, it's crazy. But if you positioned one Starship tanker in lunar orbit and then used that to refuel Starboats going up and down, you could do many missions to the lunar surface from a single Starship positioned in lunar orbit. Once again, Starship is suboptimal as an ascent vehicle to come back from the moon or Mars because it's so heavy. It's a hundred tons. The lunar excursion module we used in Apollo was two tons. So we make the Starboat — Starship plus Starboat gives you both the moon and Mars.

Here's the thing: With rockets, you measure propulsion requirements in units we call delta V, velocity changes. That's what rockets actually do, they change your velocity, they accelerate you, they decelerate you. To go down from lunar orbit to the lunar surface is two kilometers a second. Delta V to come back up is two kilometers a second. Roundtrip is four. To go down from Mars orbit to the Martian surface is practically nothing because there's an atmosphere that'll slow you down without using your rocket. To come up is four. So the round trip on Mars and the round trip from orbit to the surface on the moon are the same, and therefore the same combination of the Starship plus the Starboat as a landing craft and, in particular, ascent vehicle (because ascent is where small is beautiful), this will give us both. So we don't have to wreck the moon program in order to do Mars. On the contrary, we can rationalize it.

I mentioned one group of potential enemies this program has been the anti-Musk Democrats. The other group of enemies that this program has are the moon people who are very upset that their moon program is about to be wrecked because Musk says the moon is a diversion. Now, if it was a choice between the moon and Mars, then I would choose Mars. But we can do both. We can do both and without it being a diversion, because we can do both with the same ships.

Artemis program reform (20:42)

SLS was worth a lot in its time, but its time was the ’90s, not now.

There's been some talk about canceling — I'm not sure how serious it is — the Artemis program. If we want the next person on the moon to be an American rather than a Chinese, do we need to keep Artemis to make sure that happens?

We need to reform Artemis and this is the way to do it: Starship plus Starboat will give you the moon.

Aren’t we under a time constraint, given that if we are competing and if we think for whatever national pride reasons we want the next person on the moon to be an American, do we just kind of have to continue with the Artemis program as sort of a wasteful boondoggle as it is?

No, because there are things in the Artemis program that don't even make any sense whatsoever, like the lunar orbit gateway, which is simply not necessary. The SLS (Space Launch System) as a launch vehicle is not necessary now that we have Starship. SLS made a lot of sense when it was first proposed in the late 1980s under a different name. I happen to know that because, as a young engineer, I was on the design team that did the preliminary design for what we now call SLS at Martin Marietta in 1988. And it was really just a simplification of the Space Shuttle, and if it had been developed in flying by the mid-’90s, as was entirely reasonable, it could have had a great role in giving us massively improved space capabilities over the past quarter-century. But they let this thing go so slowly that by the time it has appeared, it's obsolescent, and it's as if someone had stalled the development of the P-51 fighter plane so it wasn't available during World War I, but it's just showing up now in a world of jet fighters — this is worthless. Well, it was worth a lot in its time. SLS was worth a lot in its time, but its time was the ’90s, not now.

Orion doesn't really make that much sense, and the National Team lander would make sense if it was modified to be Starboat. What happened was NASA gave the contract to SpaceX to use Starship as a lunar lander, and it can be, but it's suboptimal. In any case, the National Team, which was Lockheed, and Boeing, and Blue Origin, they complained, but basically their complaint was, “We want a contract too or we won't be your friends.” And so they had sufficient political heft to get themselves a contract. The least NASA could have done is insist that the lander they were getting a contract for run on methane-oxygen, the same propellant as Starship, so Starship could service it as a tanker. Instead, they let them do their own thing and they've got a hydrogen-oxygen rocket, which makes no sense! It's like someone going to the Air Force and proposing a fighter plane that runs on propane and saying, “Well, I can make a fighter run on propane, but my tankers use jet fuel.” Air Force, being sensible, insists that all their planes run on the same fuels. They don't just let someone come along and use whatever fuel they like. So the National Team contract should be changed to a Starboat contract, and the requirements should be interoperability with Starship.

The myth of an independent Mars (24:17)

We go to Mars not out of despair, we go to Mars out of hope, and by establishing new branches of human civilization, they'll be able to do all sorts of things.

As we finish up, I just want to quickly jump back to something you mentioned earlier about autarchy. Do you think it's possible to have a thriving, successful, sustainable Mars colony that's on its own?

No. I don't think it's possible to have a thriving, successful nation on earth that's on its own. This is why I think Trump's trade war is a big mistake. It will damage our economy. Now, obviously, we can survive a trade war better than a Mars —

That's what Musk is also suggesting in its whole light of consciousness that we need to be able to establish sustainable, permanent colonies elsewhere that can be just fine without a relationship with Earth.

I think that's incorrect, and as you know, since you are an expert in economics, it's nonsensical. I don't think a colony of one million people would have the division of labor to build anything like an iPhone or even an iPhone battery if you think of the complexity of what is involved.

There's this famous essay, “I, Pencil,” which I'm sure you're acquainted with. An economist went through all the different things that went into —

Yes, Milton Friedman used that example famously. I think I get your point.

iPhones are more complex than pencils. I mean, you probably could build a pencil with a million-person city, but we need to build things more complicated than that. But that's not the point here, that's not why we're going on. And I object to this. It's the Masque of the Red Death theory of how you're going to survive a plague: We'll have our castle and we can go into it and we'll be fine. No, it's extremely unattractive and it's false. The people in that castle in the Masque of the Red Death, the Edgar Allen Poe story, did not survive the plague, and it's not why we should go to Mars. We go to Mars not out of despair, we go to Mars out of hope, and by establishing new branches of human civilization, they'll be able to do all sorts of things.

America developed steamboats because we needed inland transportation because the only highways we had were rivers, and so forth, and so we've been an engine of invention. Mars is going to be an engine of invention. Mars is going to want to have not just nuclear reactors, but breeder reactors, and they're going to want to have fusion power because deuterium is five times as common on Mars as it is on earth, and they're going to be electrolyzing water all the time as part of their life-support system, which means releasing hydrogen, making deuterium separation very cheap, and one could go down this kind of thing. There's all sorts of things that a Martian civilization would develop, to say nothing of the fact that a spacefaring civilization will have the capability to divert asteroids so that they don't impact the earth. So that's why we're going to Mars. We increase the creative capacity of humanity to deal with all challenges raging from asteroid impacts to epidemics.

Our current timeline (27:21)

. . . if you have your first humans on Mars in early 2030s, I think we can have a permanent Mars base by the end of that decade . . .

So let me just finish up with this, and I think as far as a justification for going to Mars, that's about the most persuasive I know, and maybe I'm an easy audience, but I'm persuaded.

Let's set aside just putting an astronaut or a few astronauts on the moon and bringing them home, and let's set aside the permanent, sustainable, solo, doesn't-need-Earth colony. Just as far as having a sort of a permanent outpost, what do you think is the reasonable timeframe, both technologically and given the politics?

I do think, if we do what I am arguing for, which is to make it the mission of this administration to not only just land a Starship on Mars, but land a Starship on Mars bringing a massive robotic expedition to Mars, and then following that up with several more robotic landings to Mars that prepare a base, set up the power system, et cetera, then yes, I think landing the first humans on Mars in 2033 is entirely reasonable. What the Trump administration needs to do is get this program going to the point where people look at this and say, “This is working, this is going to be great, it's already great, let's follow through.”

And then, if you have your first humans on Mars in early 2030s, I think we can have a permanent Mars base by the end of that decade, by 2040, a base with 20–30 people on it. A human expedition to Mars doesn't need to grow food. You can just bring your food for a two-year expedition, and you should. You establish a base of 10 or 20 to 30, 50 people, you want to set up greenhouses, you want to be growing food. Then you start developing the technologies to make things like glass, plastic, steel, aluminum on Mars so you can build greenhouses on Mars, and you start establishing an agricultural base, and now you can support 500 people on Mars, and then now the amount of things you can do on Mars greatly expands, and as you build up your industrial and agricultural base, and of course your technologies for actually implementing things on Mars become ever more advanced, now it becomes possible to start thinking about establishing colonies.

So that's another thing. Musk's idea that we're going to colonize Mars by landing 1,000 Starships on Mars, each with a hundred people, and now you’ve got a hundred thousand people on Mars, kind of like D-Day, we landed 130,000 men on the Normandy Beach on D-Day, and then another 100,000 the next day, and so forth. You could do that because you had Liberty Ships that could cross the English Channel in six hours with 10,000 tons of cargo each. The Starship takes eight months to get to Mars, or six, and it takes a 100 tons. You can't supply Mars from Earth. You have to supply Mars from Mars, beyond very small numbers, and that means that the colonization of Mars is not going to be like the D-Day landing, it's going to be more like the colonization of America, which started with tiny colonies, which as they developed, created the crafts and the farms, and ultimately the industries that could support, ultimately, a nation of 300 million people.

On sale everywhere The Conservative Futurist: How To Create the Sci-Fi World We Were Promised

Micro Reads

▶ Economics

* Why the Fed’s Job May Get a Lot More Difficult - NYT

* America’s Economic Exceptionalism Is on Thin Ice - Bberg Opinion

* Trump Is Undermining What Made the American Economy Great - NYT Opinion

* Don’t Look to the Fed for the Answer to Stagflation - Bberg Opinion

▶ Business

* Inside Google’s Two-Year Frenzy to Catch Up With OpenAI - Wired

* Some Nvidia Customers Are OK With Older Chips - WSJ

* SoftBank to Buy Ampere, a Silicon Valley Chip Start-Up, for $6.5 Billion - NYT

* Nvidia CEO Says He Was Surprised That Publicly Held Quantum Firms Exist - Bberg

* The promise of the fifth estate is being squeezed - FT

* Boeing Beats Lockheed for Next-Gen US Fighter Jet Contract - Bberg

▶ Policy/Politics

* Six Ways to Understand DOGE and Predict Its Future Behavior - Cato

* Government Science Data May Soon Be Hidden. They’re Racing to Copy It. - NYT

* Stopping Child Porn Online Is a Worthy Goal. But Beware the Proposed Cure - WSJ

▶ AI/Digital

* Mini-satellite paves the way for quantum messaging anywhere on Earth - Nature

* The Impact of GenAI on Content Creation – Evidence from Music Videos - SSRN

* AI weather forecast project eyes access through desktop computers - FT

▶ Biotech/Health

* Why a weight-loss drug could become a geopolitical bargaining chip - FT

* We’ve entered a forever war with bird flu - The Verge

* Doctors Told Him He Was Going to Die. Then A.I. Saved His Life. - NYT

▶ Clean Energy/Climate

* Inside a new quest to save the “doomsday glacier” - MIT

* Glaciers are melting at record speed, says UN - Semafor

▶ Robotics/AVs

* Disney’s Robotic Droids Are the Toast of Silicon Valley - WSJ

* The fantasy of humanoid robots misses the point - FT

▶ Space/Transportation

* The ax has become an important part of the Space Force’s arsenal - Ars

* NASA Won't Let Starliner Die Just Yet, Even After Boeing's Space Fiasco - Gizmodo

* How Warp Drives Don't Break Relativity - Universe Today

▶ Up Wing/Down Wing

* Japan Urgently Needs an AI Vibe Shift - Bberg Opinion

* What left-wing critics don’t get about abundance - Niskanen Center

▶ Substacks/Newsletters

What is Vibe Coding? - AI Supremacy

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