Virgin flight, rocket engines and a Moonbase

30 May 2026 · 58 min · 24 chapters

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In short

Space Muffins (May 2026) covers (1) Virgin Galactic suborbital spaceflight from the perspective of a civilian “space traveller,” (2) NASA’s plan for a lunar base by 2032 with phased landers/rovers/power and international partners, and (3) the RS-25 rocket engine powering SLS/Artemis, including its design, performance history, and why it’s being manufactured again.

Guests and backgrounds

Trevor Beatty, a British advertising leader turned film producer (Wikipedia-described), known for campaigns like the “Hello Boys” Wonderbra; produced the award-winning film Moon; flew to space with Virgin Galactic in 2023 as the 667th human to leave Earth. Hosts Richard Hollingham and Sue Nelson discuss NASA leadership and Artemis context.

Key claims

Podcast argues podcasts “recommend like a friend” (Acast ad). Beatty says childhood Apollo-era TV made space feel inevitable; money and the Ansari X Prize pathway enabled Virgin Galactic. He emphasizes centrifuge/zero-g preparation and describes emotional overwhelm in weightlessness. NASA claims an iterative, industry-demand-driven approach to a hostile-but-beautiful moon base.

Notable examples

Beatty’s SpaceshipTwo flight sequence (drop, rapid acceleration, 3–4G, weightlessness, floating out of seat, tears at apogee) plus humorous “thumbs glued to cheek” and “swimming” zero-g moment. Moonbase phases (experimental, early habitation, sustained presence) near the South Pole; drones at the perimeter; Gateway “disappears.” RS-25 specifics: 14-foot length, ~500,000 pounds thrust each, 1,080 cooling tubes, 6,000 psi combustion chamber, 135 flights/1.2 million seconds, and a modernized controller.

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

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Meeting Trevor Beatty

1:15 to 2:26

Introduction and discussion of Trevor Beatty's journey to space.

“one of the few people who's flown to space with Virgin Galactic.”

Childhood Dreams and Space

2:26 to 4:50

Trevor discusses his childhood obsession with space and early inspirations.

“Now, it was Dallas Campbell that mentioned you on the podcast in March.”

The Journey to Virgin Galactic

4:50 to 6:12

Exploration of Trevor's path to becoming a space tourist with Virgin Galactic.

“I had a chat with Brian recently, and in one of his Wons of the Universe episodes, he literally takes the book out and says, this is what started it for me.”

Preparing for Space Flight

6:12 to 8:08

Discussion on the mental and physical preparations for space travel.

“You obviously noticed it then and it was part of your career and a very successful one.”

Experiences in Weightlessness

8:08 to 14:01

Trevor shares experiences and lessons learned from weightlessness and training.

“And I saw these guys launching rockets, hand-launch rockets off the Yorkshire Moors, you know, trying to win this prize.”

Experiences in Zero Gravity

14:01 to 16:10

Learn about the challenges and humorous moments of experiencing zero gravity.

“Whereas if you touch the wall like that, you will go across the other side of the room.”

Rocket Launch Experience

16:10 to 20:14

Hear a firsthand account of the intense feelings during a rocket launch to space.

“That's similar to people, what astronauts experience on the shuttle.”

The Emotional Overload of Space Travel

20:14 to 22:30

Explore the unexpected emotional responses to witnessing Earth from space.

“And it was ruined by Jeff Bezos hurtling over like the bloke out of the office and offering to get him some champagne.”

A New Era of Space Tourism

22:30 to 25:38

Discuss the implications of becoming a space tourist and the future of space travel.

“I've only written one piece about it but when I wrote it I found myself literally remembering things in the writing as I went through it.”

Reflections on Space and Humanity

25:38 to 28:00

Reflect on how space travel can alter perspectives on life and humanity's future.

“And no one ever foresaw the billionaires in the 60s, you know.”
Show all 24 chapters

Opening Thoughts on Space Experiences

28:00 to 28:50

The hosts reflect on their excitement and jealousy regarding space experiences shared by a colleague.

“And I'd still get to do something I really have always wanted.”

Matthew's Arctic to Africa Challenge

29:18 to 31:19

Discussion about Matthew's ambitious triathlon challenge to raise funds for charity in memory of his fiancée.

“It kind of helps bump us up the rankings, which I really don't understand.”

NASA's Moon Base Plans by 2032

31:20 to 33:26

Exploration of NASA's ambitious goals for establishing a moon base in collaboration with international partners.

“some local youth and children's charities to State College in Pennsylvania, which is where Matthew is studying, a PhD student, And there's that connection because it's dedicated.”

Moon Base Ambitions and Challenges

33:26 to 36:13

A detailed look at the challenges and phases of building a moon base, including political dimensions.

“The first missions the agencies announced under the Moonbase program include robotic landers from Blue Origin, astrobotic and intuitive machines.”

International Collaboration in Space

36:13 to 40:04

Discussion on the importance of international partnerships in space exploration, with a focus on the Artemis Accords.

“I've been very close to him in close proximity when you're at the Artemis...”

Future of Moon Infrastructure and Gateway

40:04 to 42:01

Analysis of the future infrastructure for the moon and the potential role of Gateway modules in upcoming missions.

“Basically, all these countries that are signing up and more and more are doing so to the Artemis Accord.”

Building a Lunar Habitat

42:01 to 45:14

Learn about the potential designs and challenges of living on the moon.

“That was meant to be a big European partnership.”

Political Aspects of Lunar Exploration

45:15 to 45:56

Discuss the political context and leadership behind the Artemis program.

“I was about to say making the moon great again.”

RS-25 Engine Overview

45:57 to 47:40

Discover the history and specifications of the powerful RS-25 rocket engines.

“It was only two months since Artemis II blasted off to the moon.”

How RS-25 Engines Work

47:41 to 53:18

Get an in-depth look at the engineering and mechanics behind RS-25 engines.

“And the bell of the engine itself is rather beautiful because it's striped.”

The Future of Rocket Engines

53:19 to 56:03

Explore the advancements and future plans for rocket engine production and recycling.

“Because once those boosters are ignited, you're going.”

Engine Power and Launch Challenges

56:03 to 57:21

Discussion on the power of the Artemis V rocket and the implications of engine disposal.

“we've got two of those engines for Artemis V that have been built and tested okay so we're well on our way and the third engine has already been started assembling.”

Celebrating Women in Space Engineering

57:21 to 58:31

Highlighting interviews with female engineers and their contributions to space missions.

“It's telling that the three sort of key interviews I did at the launch that we've used in Space Muffins are with three women.”

Listener Engagement and Postcard Appeal

58:31 to 58:58

Encouragement to listeners to send postcards and engage with the podcast community.

“You can find the address on the boffin media.”
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Transcript

Automatic transcript. May contain errors.

0:00While every other channel is fighting for your customer's attention, podcasts are where they've already given it. No one accidentally listens to a podcast for 45 minutes. They choose to be here. They trust the voice in their ears. And when that voice talks about your brand, it doesn't sound like advertising. It sounds like a recommendation from a friend. Acast gives you that trust at scale. Digital precision, post-read authenticity, and performance data that proves it worked. Don't fight for attention. Buy it with Acast. Learn more by visiting ACAST.com slash advertise.

0:58Hello, welcome to the May 2026 edition of Space Muffins. We're in partnership with the Naked Scientists and I remain Richard Hollingham. And I am still Sue Nelson. In a moment, we meet space traveller Trevor Beatty, one of the few people who's flown to space with Virgin Galactic. And it's a great unfiltered interview. We'll also discuss NASA's NASA's plans to establish a moon base and celebrate the RS-25, the engine that's going to help get astronauts there. They have given 126 safe rides to 97 different astronauts. So these are very experienced engines. Three of them are experienced. One of them is new.

1:44It'll be its first flight, which is kind of cool because it's the same way with the astronauts. Our first guest is described by Wikipedia as one of the leading figures in advertising in Britain. His campaigns included the memorable Hello Boys Wonder Bra campaign. I remember it well. I certainly remember that. I wore one, so it worked. You wore one? Yeah. I know. I know. I really don't need one. He's now a film producer. He produced the award-winning Moon. But we're talking to him because in 2023, he became the 667th human being to leave the planet, flying into space with Virgin Galactic. Hello to Trevor Beatty.

2:25Hello. Hello. Now, it was Dallas Campbell that mentioned you on the podcast in March. You feature in his excellent book. And it's fair to say, and he's a neighbour of yours, and it's fair to say you were obsessed with space as a child, which I suppose, I mean, a lot of us were. I was, I guess more than most, I think. But that's because I was a child of Apollo. And for me, it was a kind of transition between the world of Thunderbirds and Fireball XR5 to the real humans who ended up looking like puppets on the moon. And that transition happened really seamlessly. So for me, Steve Zodiac became Buzz Aldrin.

3:07Buzz Aldrin became a hero. I became Buzz Aldrin. So it was a seamless line through, really. It wasn't my obsession to go to space. It was my assumption that I would go. I didn't see my life as a kind of pyramid and one day I'll go to space. It's very much a straight line. One dog, I suppose, they're all carrying around doing interior decorating. That's so interesting for you to say that that's an assumption. I've never heard it described like that, but that was exactly my experience as well. Unlike you, I'm still waiting. But you're right, it was something about those TV programmes that I too remembered was that it was like, well, of course.

3:46And then later there were programmes like UFO, which had a moon base on it, again another Gerry Anderson production, was that, of course, of course we'll go. The debate was which aspect of space. So would you go to a space hotel? Would you go to the moon? Would you go to Mars? That was the only debate, really. Or a planet, like on Star Trek. Or a planet, yeah. Which aspect would you go? And it would all have started within my teenage years. So by the time I was 30, people would be living on Mars. But that really, that made sense when I was a kid. It wasn't exaggerated because the acceleration of progress was so incredible that you only had to project that at a similar angle to put everyone on Mars by the early 1980s.

4:32It just makes sense. It's just everything stalled after the moon. And just to come back to your childhood, we actually have the same Brook Bond picture card book. I couldn't find it. I've got it somewhere. Do you know Brian Cox? Brian Cox does as well. Oh, really? Yeah, Brian Cox featured, took my breath away. I had a chat with Brian recently, and in one of his Wons of the Universe episodes, he literally takes the book out and says, this is what started it for me. And I actually had two of them. I filled two books, and I cut one of them up to fill in my space race scrapbook projects, which ended up taking to space with me.

5:11But I'd literally cut up the Brooklyn cards and glued them in as part of my storytelling, as part of my projects. then I also have a separate pristine Brookbond. I was obsessed. I drank a lot of tea. I haven't drunk it since. I should just explain to people outside the UK because this does seem a bizarre thing when you think about it that if you bought Brookbond tea you got a little card in it and previously it had been cigarettes that had cards in them. You got a little card and you collected the cards and you'd swap them with your friends to get all the cards to fill in a book which you also sent off for.

5:45Yeah, I mean kids do it It's football, don't they? I'm never really a football fan. Kids are football. But for me, that's for telling my life story because that's called marketing. And so the marketing of space through the back of cornflakes packets or tea cards from Brookbund Tea is marketing. They were marketing space, which got me into both aspects. I couldn't have gone to space without a career in advertising, with marketing. Marketing took me to space. You obviously noticed it then and it was part of your career and a very successful one. The more successful you became, was the thought of space always at the back of your mind or was it a sort of, oh my goodness, I've done this well, I can do whatever I want?

6:30you know no no it was at the front of my mind

6:37so actually you know i had a career that went beyond briar ads you know if you look at a lot of the work that i produced you'll find that it was space biased whether it was an alien creature for playstation or producing the movie moon or um lads arriving on a planet for a carling commercial you don't have to look fast to see a space team running through my work so you say you had this at the front of your mind, at what point did you realise that it wasn't going to happen in, NASA wasn't going to take you to space. You weren't going to, it wasn't just going to happen. You would need to raise the funds to go to space.

7:13Was there a point where you thought, hang on, there's an opportunity here with Virgin Galactic or? Well, before that, well, two things in one, because I'm the world's biggest David Bowie fan. So again, that's not a surprise. And Bowie made a film with Nick Rogue called The Man Who Fell to Earth. Oh, yeah. Which is just a remarkable film. It's bonkers, it's silly, but at the same time, it's a very moving, very special film for me. And again, I saw it at a formative age. And Bowie plays an alien called Thomas Jerome Newton. He comes to Earth, and his sole aim is to raise funds to build a rocket to send himself back home.

7:51He doesn't want to invade Earth. He doesn't want to take over Earth. He wants to go home. he builds a giant fortune in order to go to space to go home and that happened with me I saw that I would need money to go to space I've never driven a car in my life I don't have a midlife motorbike crisis either so I've saved a lot of money in that respect but there was a lull in the 80s because you're right NASA was never going to take me to space I was never going to go on the shuttle and the shuttle for me maybe wasn't a step backwards but a step sideways or a step circular into orbit and we were going around in circles it wasn't going anywhere else so there was a genuine lull so I had to wait for something else to happen doesn't matter how much money I raised I couldn't invent the rocket that would take me to space so I had to continue dreaming about it and what happened was um a thing called the Ansari X Prize which was again a very kind of old-fashioned, almost Victorian Phileas Fogg notion, which said, if you can build a rocket and send two humans to space and bring them back and then repeat the deed within two weeks, you win the Ansari X Prize, you know, for the giant sum of$3 million or whatever the heck it was, in consequential, in the scheme of things.

9:08But it meant a lot. And I saw these guys launching rockets, hand-launch rockets off the Yorkshire Moors, you know, trying to win this prize. and it was amusing. I remember that guy. I can't remember his name. We went to interview him at some point. There was a lot of it going on because it was a price. It was an old-fashioned challenge. So welcome all comers. It was lovely. And then Richard got involved, which was interesting. Richard Branson. Yeah, Richard Branson got involved. Not me. Yeah. But then what was really interesting was that Richard teamed up with Bert Rutan. And then when that happened, I got very interested because I thought, well, it's going to happen now.

9:47because Bert Rutan's involved. Bert Rutan built, designed and flew more types of aeroplane than Boeing and Airbus combined. So he knew his stuff, but he hadn't built a rocket. And Richard went to him and said, I want to win this prize. How do I do it? It was a bit like asking a Formula One racing driver to drive a taxi. You know, it was a bit beneath him. You sort of went, what do you want? You want to go on a suburbital flight, really? do you want to go to Mars? And Richard was going, well, everything in time, but can you just tell me how to do the suborbital? And he said, well, of course I can, but, you know, I want to go to Mars, I've got bigger fish to fry.

10:25And in the end, Richard was kind of bullying him to say, for God's sake, tell me how to do it. The way I tell the story is that Bert answered it with two words, which was air launch. And once you air launch the rocket, things are a lot easier. And so they designed, well, Bert designed Spaceship One and they made the first flight, which succeeded. And I knew that they were going to do the second flight and therefore win the prize. So I phoned Richard and said, right, I'm calling your bluff. I know that you're going to win the X Prize. You've just successfully had the first launch. I'm going to come along in two weeks' time to the second and shake your hand and see you win it.

11:05And he said, well, I'm going to call your bluff because we're not going in two weeks' time. We're going in two days' time and I'm going to LA tomorrow. And I said, well, I'm going to call your bluff. I'll come along with you tomorrow. So off we went to LA, no sleep, straight to Mojave, and Spaceship One launched, and they won the XPRIZE. Bert came up with the immortal line that day of Spaceship One, NASA, NIL, which was just tremendous, tremendous, because civilians could now be launched, you know, to space. And so I found myself in this weird kind of zealot situation where I'd dropped everything at work, got on a plane, gone to LA, seen them win the X Prize, told Richard, I'm in, count me in, I'll be your first customer.

11:46And then I found myself sitting on a huge press conference table with Brian Binney, the test pilots, and Bert Rutan, aerospace genius, and Richard Branson, and a couple of others, and me, and the world's press. Well, Richard kind of announced Virgin Galactic to the world and said, oh, I've got someone signed up already. I then got in a taxi, went back to LAX and flew back home, went into work the next day. I've now gone 72 hours without much sleep. I go into work the next day and all my mates are saying, oh, you missed an amazing thing yesterday. Richard Branson's thing went to space. And I'm going, yeah, I know.

12:22No, it was in America. Yeah, no, I was there. I was there. So it's a mad, mad dream. And that was 2000 and put a date on it, 2004, around about then, three or four. and um so i signed up on the spot that day but it wasn't until 2005 that i actually bought a ticket and then 18 years later on the anniversary of gagarin's flight from winterspace let's talk then about your your mission how much preparation did you have i mean apart from obviously the mental preparation since you were a child how much physical preparation did you need Well said, because that's the correct answer. Well said. In that, you've answered it in that respect, in that I was always prepared.

13:07Bert Rutan taught me a lot because Bert said, make yourself familiar with the unfamiliar and expect the unexpected. So that if you understand everything that's going on on the flight, you're saving valuable seconds. What I mean by that is there are certain customers of Galactic who refuse to go in the centrifuge, who refuse to fly what I call the Vomit Comet because they want to save you for the precious day when they go. They're wrong. They're wrong if you do that. Not least because flying in the Vomit Comet is a brilliant experience and being weightless is an incredible and joyous experience.

13:42So you want to experience it first so that when you are weightless in space, you don't freak out. You don't think, good God, what's happening to me? Even for a few seconds, if you think what's happening to me, you've just wasted a few of the most valuable seconds in your life. so taking back to Bert's point of understanding g-forces there's a lot of g on your body going up so you need to understand what's happening to you oh i know what this is this is the g-force this is this rather than what's happening mrs i don't know what's going on you're wasting time likewise with zero g with wetlessness you're not cartwheeling around the place out of control because you don't know what's happening to you or you're pushing off although i do confess to doing the most embarrassing thing you can do in weightlessness which is this breaststroke swimming motion because i had convinced myself i was not going to do that i've done two or three zero g flights and the first one i did the swimming thing it's pathetic because if you do the swimming thing in weightlessness guess what happens less than nothing so you're hovering above the ground moving your arms around like an injured frog.

14:47You're not going anywhere. Whereas if you touch the wall like that, you will go across the other side of the room. And I promise myself, it's human nature that when you're floating six foot above the ground, that you should swim along through the air and thereby somehow sweep the air back behind you like the air is water and you'll go forward. No, you won't. I did it in space and it's on film and it's embarrassing. I think you're right now about... You will never see it. You will never see it. I think you're right, though, about the, I think you definitely have to do the centrifuge beforehand.

15:21Richard and I have both had a centrifuge experience. And I think to go into space where you are experiencing G-forces and not have that centrifuge knowledge and experience, it could actually, I reckon, it could ruin your flight if you're not prepared for that. You also have done the zero G. And I've done the zero G as well. Let's talk about the flight then. You're going from this rapid, you're dropped from the plane. You're doing rapid acceleration to zero G. Yeah, I'd also done a lot of, I've got a lot of friends in the RAF and XRAF. So I've flown a lot of aerobatics. I've flown in the backseat of a tornado.

15:56I've been in the mid 25 to 80 ,000 feet. I've done some stuff to prepare myself for this. You know, so I know what G is about and I know what aerobatics is about. Pales into insignificance to what happened to me. Not even close. the aerodynamics of a rocket plane which is dropped like the x-planes of old the mothership gets out the way they say fire fire fire and you go and again they told us that in that drop so they say release release release you release and then three seconds later the burners hit and they said it won't seem like three seconds it will seem like half an hour and you'll convince yourself it's not going to fire and they were dead right that three seconds for me lasted about an hour but then when the burner hits my god i've never done anything like it in my life you're rapidly supersonic within a couple of seconds you are supersonic and then you're arcing around and then turning tail and you're going vertical for 29 seconds at three times the speed of sound and that has a colossal effect on you.

17:08And it's three to four Gs, isn't it? Which is quite a lot, really. That's similar to people, what astronauts experience on the shuttle. And when we did our centrifuge, it was around 3.4 Gs. And that was quite unpleasant at times because you couldn't lift your hands up, you know. Richard found, I have to say this, Richard found it way more unpleasant than I did and screamed like a girl. It wasn't comfortable. Well, I didn't enjoy it at all. I did 6G in the centrifuge. Wow. And I found it very difficult. Gosh. I can't gauge what it was on Galactic. But again, I had another embarrassing moment because I'm English, which is one of my curses.

17:59And when the rocket fired, I know the cameras are on us, and I put my two thumbs up in a kind of Paul McCartney-esque English way of hurrah, the rocket's fired two thumbs. Big mistake. My two thumbs were smashed against my cheek by the G-forces, which I couldn't remove for about 15 seconds. So again, there is footage of me with two thumbs glued to my cheeks, looking like an English prat, hurtling vertically towards space and three times the speed of sound. I mean, that could have been worse. You could have damaged your eyes. You could have hit yourself in the face. I'd have bloody well deserved it.

18:37You know, you sounded like Mike Myers in space at this point. Well, as Mr Bean goes to space, it genuinely was a bit of that. So, yeah, so you go from this brutal experience. It's a very violent experience of climbing away the boost section. I was in pretty much the front seat so there's no door between me and the pilots so I didn't have that notion of looking out of the window as they often talk about seeing the blue turn to violet turn to black, I didn't see that because I was instantly on my back and I'm looking at the gap between the pilot and the captain straight through the front windshield straight into the infinity of space from where it goes so I'm looking into the blackness straight away so while I'm being vibrated in my seat as we climb away then you go from that to apogee when the engine cuts out you continue climbing without the engine because of the momentum but you're in space and the harness comes off and you float out of your seat you turn to the left and you see the blue earth and you burst into tears that's that's what happens so the emotion all of those emotions all in one is a lot I don't think we're designed to as humans to experience that it's very difficult to take in it's far more emotional you know you asked about my preparation I prepared for everything except how emotional it would be that's a bit like William Shatner I know I've mentioned it on the podcast several times but his description when he came down from his flight with Blue Origin was poetic and emotional and just incredible.

20:21And it was ruined by Jeff Bezos hurtling over like the bloke out of the office and offering to get him some champagne. Come and get some champagne. No, I'm just describing the most poetic, emotional experience of my life. Yes, but we're having an office party. Come and have some champagne. Appalling behaviour, appalling behaviour. But, yeah, I thought that he was great doing that. He summed it up brilliantly. You talked about you're crying and you're weightless. Are you trying to just mentally stretch out every one of those seconds before you come back? That's a really good question. That's exactly what it is.

20:57When we did the rehearsals, you don't think you have a long time in space. And yet you do. Because if you sit in silence and count out the minutes, you have a long time. Another great piece of advice I got was all the moonwalkers told me to look out the window. But I got a slightly nuanced version of that, which was sit at home for half an hour and look out your front living room window and do nothing else. And it was a great, great tip. It made you more observant and absorbent to what was going on. So when I looked out of that window, I knew this was my one only chance. I wanted to devour what I was seeing.

21:39I don't know whether you can look harder, but I tried to look harder. Do you know what I mean? I wanted to devour it. And therefore, one of the most terrifying things was when I got off the rocket, I was blank. I had to make a little speech. They said, make a speech, stick a microphone out of you, you know. And I couldn't remember the flight. For about five minutes, I couldn't remember the flight. It's overwhelming, isn't it? I'm sure that was my brain. Yeah, the sensory overload was my brain saying, can we just have this a minute? We'll take this off you. we're going to take this over here and we're going to file it and in that moment of my brain being disarmed and debriefed it kind of it was taken off me and parked while they filed it the people in there filed it into where it should be but for that time I thought I've gone through all that and I don't remember it and it slowly came back and the more I talk about it the more it does come back I've only written one piece about it but when I wrote it I found myself literally remembering things in the writing as I went through it.

22:38Like the sound of it clanging like... Inside the rocket, it clanged metallically. Like I said, it sounded like a transit van being loaded with planks. You know, just this metallic clanging of the booms moving. And it's things like that that just stick with you. Virgin Galactic have recently announced, you know, with this getting back in business, that they're selling seats for an eye-watering $750 ,000. And I sort of thought, well, what about all those people on the list? And all those people waiting to go up? You are one of the few who's managed to do this as a sort of space tourist, effectively.

23:18I know, I dread that you don't necessarily want to call yourself an astronaut, but a space traveller. Is it bittersweet that you've had this amazing experience? Yeah, I waited 18 years, you know, and yes, there are friends of mine who were due to go on the flight after me and they will go but they have the patience of a saint and also i think it's you know weird way it's kind of helped them that i went you know if i hadn't gone they're able to say it's a reality it's true trev did it we went you know they're able to say that i wasn't able to say that because you know none of my fellow travelers had flown really and so yes i have friends waiting to go next and they continue to wait i was at like a work for galactic i believe them so much i don't i don't see myself as a customer you know i love them and they've engendered this real sense of community with their with their people with their customers and they do have the patience of saint i want everyone to go of course what about the trevor beatys of today so the i don't know the 11 12 year olds who are doing their geography project saying well i'm going to live on the moon when i grow up do you do you think that's now more of a reality or a more realistic expectation than it was when you were growing up in the 1960s?

24:35No and yes. That's why it's a brilliant question. Yes, when I was a kid, as we were just saying, it's pretty inevitable that you're going to be going to space by the time you're 18. Yes. Then in the 80s, no, you're never going to go. Then in the 90s, no, you're never going to go. And then challenging disaster, etc., you're never going to go. But now you are going to go again. So the hiatus for me has ended. that the decades of you're never going to go have ended and there's a new space world around us, a new space horizon. So I think if you're 10 years old now, it's far more likely that you will go to space than when I was 10.

25:13I just had a weird belief. I don't think you need a weird belief now as a 10-year-old. I think it's pretty inevitable that you'll go at some point. That's why I say it's yes and no. I thought I was lucky to go, but I wasn't. I was definitely not going to go in the 80s and 90s. There's a glimmer I could go when I went and I went. And now it's getting better again. It's strange. It's all about money. And no one ever foresaw the billionaires in the 60s, you know. And that's all changed. Everything we do is space now. I'm watching you now because of space. We couldn't be doing this now without space.

25:50Trevor Beattie, what a fascinating man. I love that interview. Trevor's story is featured in Dallas Campbell's book Space Journal, which you can hear more about in the March edition of the Space Boffins podcast. He's quite an interesting man, isn't he? I mean, apart from being very funny, very good at telling a story, I love the fact that, you know, he's a writer, he's a producer, he's done some of the most memorable ad campaigns of the last 50 years. Not just Wonderbra. which we did mention. He was also involved in a New Labour campaign, which was incredibly successful, and being involved with the film Moon, you know, as we mentioned.

26:37And that was with Duncan Jones, David Bowie's son. So, yeah, just an all-round good bloke and still incredibly enthusiastic about space. So if podcasts, well, let me put it this way, if non-profit podcasts were more lucrative, Would you use the funds to go to space? Would you use the funds for that sort of short trip on Virgin Galactic? It's, yeah, it's always a difficult one, isn't it? Because everything always has caveats. Because if you start to put the money it would cost. Well, I suppose if you're, I mean, on that, I suppose if you're a billionaire, it's still pocket change, isn't it? Because obviously to me now that, yeah, I'd be in debt.

27:20I wouldn't, I don't have that money. Maybe sell the house. I don't know. You know, it's that sort of thing. And you look at everything that's going around you and think, oh. But, yeah, in a world where there was no poverty and hunger and things. You sound like a bit Miss World now. I do, don't I? I want world peace. Yeah, no, yeah. Of course I'd go, yeah. That sort of thing. I'd work out how to solve the world's problems when I got back. And what do they say? Payback or something. Yeah, I'd pay it for it. I knew you'd have the overview effect. That's the American expression, isn't it? You'd have the overview effect.

27:57Yes, exactly. And then I can do it and that will be fine. And I'd still get to do something I really have always wanted. So, yeah, very, very jealous of Trevor, but very glad he shared those experiences with us. For the first time, I really felt what it was like to be inside. It was a brilliant description. This is Space Muffins. We're in partnership with The Naked Scientists.

28:50store today at Eden Plaza and Wellmet. Wayfair, every style, every home. Do comment, like, enjoy Space Muffins on Instagram, Facebook and X. And it would also be really helpful to us if you liked and subscribed to the podcast. And so if you do really like us, do consider a review on Apple Podcasts. It kind of helps bump us up the rankings, which I really don't understand. Do we care about that? We've never really bothered about that. We do. Well, it gives it more visibility, which means more people will listen. Let's face it, I think I mentioned a few podcasts ago when I was going through my laptop and I found all these screenshots that I'd done from our ratings.

29:39And I couldn't believe that we'd been number one space podcast in so many countries. Yeah, we do. It was like New Zealand and places in the Middle East. It's just like, oh, well, anyway, it's probably just as well. I didn't know. I would have got self-conscious. It's also a bit confusing on the rankings because we actually appear twice. So we're on two feeds. We're on the Space Muffins feed and we're on the Naked Astronomy feed. So it's very difficult to know. Really, it's a combined one for the two of us, isn't it? Yeah, it is, but you can't. I mean, no one knows. But anyway, reviews would be lovely.

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30:11You're right. That's a good point is that, yeah, it means it gets to those that actually need it, but don't know they need it. But they really do. They really do. Oh, by the way, if you've noticed, we've got a slightly different acoustic than normal. That's because we're not in the UK. We're actually in Stockholm in Sweden for the start. We're about to go to the Arctic Circle for the start of our son Matthew's Arctic to Africa challenge. And he's going to be doing something utterly crazy. He's going to do a three and a half thousand mile triathlon. He'll be swimming across the Arctic Circle, then running a marathon a day for, I don't know, is it 37 days or something?

30:58We should really pay attention to me. We should have read the blog. That's right. And then he's cycling every day, well over 100 miles a day. between Denmark and Morocco. So it's about 13 countries, I think he's going, over about two months, hoping to raise a ton of money for Save the Lock Children's Charities, Save the Children, which is an international one, some local youth and children's charities to State College in Pennsylvania, which is where Matthew is studying, a PhD student, And there's that connection because it's dedicated. All this is raising it for his fiancée, Lovisa, who was sadly, as you will know if you've heard our podcast before, sadly killed by a speeding car a couple of years ago, only 25 years old.

31:50And so this is all in aid of that. And you can there's also a link to give to these sort of scholarship that was made in her name to the university, to Penn State University by Lovisa's parents. So go to happyvalley.com. You'll see Arctic to Africa challenge. You'll see this crazy boys attempt. I've noticed a few Space Buffins fans have already donated. So thank you, thank you, thank you. Especially Dave. I noticed your name. And we'll post a link to it as well on our socials. Now it's clear that the new head of NASA, Jared Isaacman, is laser focused on a single goal to once again land people on the moon and establish a moon base by 2032.

32:44We are working alongside our many international and commercial partners to leverage the incredible capabilities from commercial industry to build a moon base. For all we hope to accomplish in this endeavor, what we are embarking upon is extremely challenging. And we know so little from what is a combined 80 hours of lunar astronaut EVA time across the Apollo missions. And that was more than a half century ago. So we are not jumping right into the glass dome moon base as a service. As we announced during the ignition event, we intend to take an iterative approach, sending a demand signal to industry for a lot of landers and rovers and tech demonstrations and all the scientific payloads these missions can accommodate.

33:25We are leveraging the NASA playbook from the 1960s, figuring out what works and what doesn't in this epic science of survival because the moon base is as beautiful as it is hostile. The first missions the agencies announced under the Moonbase program include robotic landers from Blue Origin, astrobotic and intuitive machines. And there's also a Moonbase website, which is really rather splendid. I mean, it's it's quite exciting, actually. It's all setting out the latest plans, you know, immensely. It's sort of taken everybody by surprise, really, hasn't it, in terms of how it's done? And it's listed these three phases.

34:06Phase one, actually, this is the sort of experimental sort of lessons learned phase. Yeah, I mean, I have to say on this, this is basically stuff that was happening anyway. They just rebranded it slightly. Well, yeah, don't we all? And that includes the Griffin Lander that we saw in Pittsburgh recently and is also on the podcast. We've got the early habitation phase, which is phase two. and this is all about pressurized rover and you know nuclear power and testing things like that and then your your phase three your sustained human presence so phase two basically is when that moon base will get set up by 2032 and your phase three is from 2032 onwards and I know how I'm very excited about I feel like I'm looking at plans for for all mankind but let me before I get your opinion, Richard, can I just tell you what the thing that really got me, which I did think was, oh my goodness, it's just like for all mankind.

35:04Although obviously with the Americans instead of the Russians, because that's an alternative view of space history. It's the ambition. It's the fact that the announcement is, it's a real estate grab of the moon, basically, that they're planning to make this moon base covering hundreds of square miles, hundreds. so this ambition is effectively a city it's not a little you know gymnasium and a few little out buildings this is a city I mean it's going to be near the South Pole because we know that's where it's beneficial and you know that that's one of the best places to be if you want water and what have you but um a hundred square miles and they're going to put drones on the perimeter all I could think of was oh for all mankind again having all these you know moon bases from different countries and then all sorts of shenanigans going on and people trying to sneak in but drones I mean what did you think what's interesting is Jared as we now call him Jared yes our mate Jared we've not met him yet though I've been very close to him in close proximity when you're at the Artemis...

36:18Oh, yes. Oh, well, you're as good as mates. Yes, I've been very close to him. He, in his interviews, and we ought to try and get him on the podcast, in his interviews, he does, he gets, it's almost like this drum in the background of China, China, China, that China could get there first if we don't do that. So that's the political component to all this. But yeah, we could end up with the extraordinary situation. We've got all these countries of sign up to the Artemis Accords. And then you've got China and its allies, which we would assume include Russia in that. It could be on the same crater, you know, the Shackleton crater, but on different sides of it.

37:00Exactly like for all mankind. Actually, I should have looked up how big this crater, how big this crater. I mean, I know one of the reasons they want to go there is that there's a scientific reason too, because it's got the oldest sort of basin crater and they'll learn all sorts of things about early formation of the universe as well. But if it's 100 square miles, how much are the South Pole is left? It's quite big. But the moon isn't that big. Come on, you see it. Even the recent Artemis pictures, you can see it's tiny compared to the Earth. I think a good comparison is Antarctica. Yes. And, you know, probably not a dissimilar sort of area you're talking about where they established bases in Antarctica.

37:41I think there are two parallels with Antarctica. One is that the sort of initial age of exploration in Antarctica was around the beginning of the 20th century. So you had Scott, Amerson, Shackleton. That's another connection with Shackleton Crater. And then, well, there were other little expeditions, but no permanent habitation or certainly year round habitation on an ongoing basis until about 50 years later. So we're seeing a similar thing now. And Antarctica is governed by the Antarctic Treaty, where you have these, well, you know, enemies like Russia, Ukraine have bases there. The UK has two significantly sized bases, as well as other ones, research stations dotted around Antarctica.

38:28And it's almost like with the treaty, all the claims are suspended. So there is a system whereby everyone can peacefully coexist. And I imagine something similar will happen on the moon until or if and when there's a scramble for resources. And that's when it starts to get more spicy, I would say. Yeah, drones on the perimeter doesn't say peaceful to me. I think you might be reading too much into drones on the perimeter. Oh, come on. Who would put... I'm sorry. You're on the moon. No one has to say, why would you put drones on your perimeter unless it's for something not of this earth? Let's not get the...

39:12Oh, you're thinking UFO now, aren't you? Yeah, I am. I am thinking of the show. You're thinking moon base and UFO. Terry Anderson was talking... Terry Anderson. Trevor Beattie was talking about Jerry Anderson and his love of Fireball XL5 and a UFO reference there. So, you know, hey, let's kick up a few more conspiracy theories. Please don't. The other thing I think it's interesting to note on this, I mean, it's NASA making these announcements, but they have been clear, and the first sentence of their Moonbase website, which, you know, I do recommend have a look at, it says the Moonbase is home base for Artemis astronauts who will live and work as humanity's first lunar outpost.

39:58Now, Artemis astronauts include European Space Agency astronauts, Canadian astronauts, Japanese astronauts. Basically, all these countries that are signing up and more and more are doing so to the Artemis Accord. So it's not just a US thing. This is going to be a more international collaboration, which, let's face it, a lot of the best space stuff is an international collaboration. Absolutely. We're not dis in America because you do some good stuff. that's the most patronizing

40:32no it's very impressive and I loved uh like you say I love the the website um it did remind me a bit of a couple of years ago when European Space Agency also did some wonderful sort of artist impressions of lunar bases and how it could work and what they're aiming for because ESA, as we know, has got tons of research ongoing to do with regolith and converting regolith into structures and, you know, and how to convert it into hydrogen and oxygen and various things. So, yeah, I did look at it and thought, oh, it's like ESA's, this is just like how ESA, but they have gone into much more detail with this calculated, this phase, one, two, three, this stage, this stage, this stage.

41:18What we're going to do gave very clear dates, which I'm pretty sure will almost certainly slip because they always do. It's as simple as that. But I love the fact that, you know, 2028 is when all these so many launches. I mean, in one phase when they're talking about, I think the first phase, 25 launches to the moon. I mean, this is incredible. Well, if you've got all these private companies on board and we're looking at the multiple launches already from the US, then that's not by no means impossible. That's very, very doable. What is also noticeable, though, is Gateway has utterly disappeared.

42:00And so they're built, as we know, you've seen them, some of the habitation and some of the modules for Gateway. That was meant to be a big European partnership. So it'd be interesting to see whether they end up being used on the moon or they end up being incorporated into some sort of space station. Well, to be fair, the artist's impressions, they basically do look like gateway modules, which are, you know, cylindrical. And let's face it, that's likely what it's going to be like anyway, regardless, because that's how you transfer it through space and get it on the moon. There's not much room. I mean, that was the thing that when I saw the module for myself was just like, wow.

42:43I mean, in fact, I think I asked Mateus, astronaut Mateus Maurer, didn't I, about the sort of the space thing. On gateway. Yeah, yeah. You know, I think you have to be a very special kind of person to want to be able to, not necessarily want, but I think to have the strength of mind to live in that way. It's like pioneers of old, isn't it, explorers? I think it will also be very much like Antarctica. So if you look, for example, at not so much now, but certainly the earlier bases on the ice shelf and at the South Pole in Antarctica. So they had some structures, but a lot of it was actually tunneled into the ice.

43:33And obviously you can breathe the air in Antarctica. But you could imagine a similar thing actually using the lunar regolith or having stores. Or also there are lava tubes on the moon. So that's the big thing because then you protect yourself from radiation. And using inflatable structures within that. So I think, you know, although there might be modules like Gateway initially, then it almost certainly start using either material there to build something or bury something within the lunar regoliths. So you are protected from the ultraviolet rays from the sun. I mean, you know, I used the word city earlier, but it's probably going to look more like some sort of refugee camp of just a load of disparate structures.

44:18sort of like say inflatable it feels like maybe the equivalent of cylindrical tents here and there but some I mean they are in 2028 they're going to take about a thousand pounds now I forgot to look up what that is in kilograms yeah exactly real money uh what that is in in um kilograms but that's a lot so they've got a huge amount of cargo to to take with them and and basically basic structures and the infrastructure that will do this so it is going to look a little bit of a mess but this is it isn't it this is how amazing cities like new york and paris and london this is how they all started as just small little houses somewhere that somebody you know plonked up against a river and made home and and this is it this is the start of making the moon a lunar home for people.

45:15I was about to say making the moon great again. Well of course they credit Trump at the end of the website but then that's fair enough you would wouldn't you you try to make sure but there was some discussion I was reading online about well who is responsible for the Artemis program and then I read somebody say no it wasn't Biden and it wasn't Trump either. Who announced it? I can't even remember now. Can you remember who announced Trump's first term? Oh, it was Trump. Oh, that's right. Well, there you go. Credit. Then it drifted through Biden. Oh, it did. I see. Right. Okay. So, yeah. So this is, yeah, I'm very happy about it.

45:56He should have that credit. Things are moving fast. It was only two months since Artemis II blasted off to the moon. 7 RS-25 engines, lift, 4, 3, 2, 1, booster ignition, and lift off. The crew of Artemis II now bound for the moon. Humanity's next great voyage begins. You heard the commentator there name-check the four RS-25 engines powering the core stage of the SLS and those engines are remarkable. They were first developed in the 1970s and they're considered so good that manufacturing has restarted for future SLS launches. A few metres away from the giant countdown screen at the Artemis 2 press site, an RS-25 was on display.

46:48Built now by a company called L3 Harris, ahead of the launch I met their flight support lead Helen Lewin. I can't quite get my head around the view here so we're looking out over the water there's the Artemis spacecraft in the distance there's the countdown clock off to our right and standing underneath an RS-25 engine and when you see these on the space shuttle or you see these on a spacecraft they always look quite small this is huge it is it's 14 feet long The nozzle diameter is almost eight feet. So you could stand in that and barely touch the top. So it's quite a large engine. It delivers about 500 ,000 pounds of thrust for each engine.

47:40So on the pad with the four engines, we've got a total of two million pounds of thrust. And the bell of the engine itself is rather beautiful because it's striped. It's not smooth inside. And that's functional. It's constructed with 1 ,080 tubes, and those tubes are all braced together. And what we use those tubes for is we put liquid hydrogen through them to cool the nozzle because the liquid hydrogen comes in at minus 423 degrees Fahrenheit. It's very, very cold. When that exhaust comes out the nozzle, it's coming out at 6 ,000 degrees Fahrenheit. Sorry, I have to use... It's hot. It's really hot.

48:22It's really hot. It would vaporize steel. and and we don't want that so even though it's so hot inside when the engine is operating the outside of the nozzle is cool to the touch because of the cooling effect of that liquid hydrogen so every one of these ridges is full of of liquid on launch yes yes and it's there's a lot of of liquid going through there very very fast let's move a little further along to beyond the nozzle to the engine itself. I wouldn't even begin to describe this. I mean, it's a mass of wires, of tubes, of boxes, of plugs, huge pipes coming around it. How does this work? Okay, so at the simplest level, we've got liquid hydrogen coming in one side and liquid oxygen coming in the other side.

49:16We bring them up to a high pressure. In the main combustion chamber, We use igniters to ignite them. Of course, hydrogen and oxygen forms water, but it's a superheated steam, and that's propelled out the nozzle, and that provides the propulsion. If you'd like me to go into a little more detail, I'd love to do that. Well, I guess just pick up on that. So superheated steam is actually what's powering this spacecraft. And I love going to engine tests because then it's just the engine, and you get a big cloud of steam overhead, and sometimes it'll come and rain on you. So a lot of this is just about getting the diameter of everything right, the speed that everything goes into it right, and making sure it doesn't explode.

49:57Speeds and pressures. And the main combustion chamber is operating at 6 ,000 psi. So, of course, we have to get the propellants up to a higher pressure than that. And we have two pumps on each side of the engine that accomplish that. So we bring in just head pressure. It's just driven by head pressure on the vehicle from the tanks. And the low-pressure pumps bring it up to about 400 psi or so. And then we have these high-pressure pumps on either side, one for hydrogen, one for oxygen. And that brings the propellants up to the pressure that we need to be able to bring them into the main combustion chamber and combust them.

50:40Rockets have been around for, well, we know, a long time. What is so special about this engine that has made it endure through the space shuttle into the SLS? Well, to start with, it's a very, very high performance engine. We don't have the hydrogen that we use for cooling is fed back into the main combustion chamber. So it's all burned. It's all used. There's no waste. The other thing is that we've had so much experience with this engine. It was designed for the space shuttle program, and so we've had 135 flights, including all our test time. We have 1.2 million seconds of operational time on this engine.

51:25During the shuttle program, it went through six different configurations. So we learn more, we test more, and we'd improve it. And so we've gone through a number of cycles of improvement on this engine. And for the Artemis program, we made some more improvements. The key one is you see that black box up there with all the spikes sticking out? This one on the side here. Oh, yeah, yeah, yeah, yeah. Yeah, yeah. So it's a, I mean, literally it's a box. It's got electrical plugs on one side and then there's spikes sticking out on the side. Yes, that's our computer controller. Every engine has its own computer that controls it.

52:06And all those harnesses coming in are getting data from pressure and temperature and speed sensors all around the engine. And it's evaluating that data. Now, the spikes on the old-style controller, which this is a shuttle-era controller, we needed those spikes because of the way the power supply was. It generated a lot of heat. For the Artemis program, of course, controllers, the computers are the first thing to be outdated. So we replaced that with a more modern controller. and it doesn't need the spikes anymore because the power supply is different. So we don't have that anymore. But it's still got all the cables running to all the sensors.

52:45When we get to the last few seconds of countdown, the engine starts six and a half seconds before the boosters do. And so during that six and a half seconds, the engines are coming up to power. People can't react fast enough. So that controller is monitoring the whole engine, making sure it starts correctly. And that is what's going to protect us. If anything happens where the engines aren't coming up correctly, that controller will shut things down. The boosters won't ignite and will stop for the day. Because once those boosters are ignited, you're going. You are going. Let's just turn around then.

53:25I mean, this is what's so incredible about this location, isn't it? We've got a huge engine towering behind us. And then we look over to beyond the lake here to the launch pad itself. The engines on that rocket over there, tell me about those, because they've all got a bit of a legacy to them. They do. They're all from the space shuttle program. And they have launched 15, 5 and 2 times, actually 20 unique space shuttle missions that they supported. they have given 126 safe rides to 97 different astronauts so these are very experienced engines three of them are experienced one of them is new it'll be its first flight which is kind of cool because it's the same way with the astronauts three of the astronauts have flown before and one will be on its first flight so same with the engines somehow we ended up with two of the superstars from the shuttle program we measure their performance in test and 2047 was the most popular engine during the shuttle program so it flew 15 times and that could have been on several shuttles because they they recycled them through different shuttles yes we used to remove the engines after each launch because it was safer and quicker to process them off of the vehicles so then they get put back on whatever was whatever flight was next so they probably flew on on four of the vehicles the fourth one then is that new because you are manufacturing new ones these are not just spares now you're getting into the business of actually remaking these engines well the fourth engine on this vehicle did come from the shuttle program we continued with our process all the way up to the end of the shuttle program and so that engine was built around 2009 it just never got tested so it was never used so when we ended the shuttle program we had 14 engines that had been flown we had one that had been built but never tested and then we had parts for one more so with those two extras that gave us four full flight sets to start out the artemis program so that gave us a huge sort of buffer really of having you've got them ready it gave us a lot of time to to start up production on the new engines so now we're working on the new engines for artemis 5 we've made a lot of improvements because there's been so many manufacturing improvements and 3d printing and all that we're using it all for the new engines we've got two of those engines for Artemis V that have been built and tested okay so we're well on our way and the third engine has already been started assembling.

56:14Is it a tragedy in your mind though when you send this up hopefully it will launch later today that you lose them you know with the shuttle they came back you could recycle them these will be gone? Well these are my babies but I would never call it a tragedy. We have so much power on this rocket. It's the only rocket that can bring astronauts to the moon in one launch. If we reserved 20 or 30 percent of that power to be able to return the engines, we wouldn't make it to the moon and I'd rather go to the moon. Helen Nguyen and her RS-25 engine and sorry about the wind noise on that recording. It was getting very windy at that point in the day which made us all wonder if the launch was going to happen it was quite it was I mean I think I conveyed that in the last podcast it was such a nerve-wracking day in terms of is it is it is it gonna go isn't it gonna go she was great though um yeah and it's um you sort of got an idea of the scale of them as well uh so they're sounding almost I think it's It's telling that the three sort of key interviews I did at the launch that we've used in Space Muffins are with three women.

57:30So we had the two Sharns last time, or the Cyan and the Sharn, and now Helen in this podcast, and they're all excellent. Good. Are you saying now we don't need to do any women for the rest of the year? Yeah, that's our quota. We've met our diversity quota. Woohoo! Woohoo! No, that was fabulous. So thank you to to Helen Lewin and to Trevor Beatty for being on this month's Space Boffins podcast. And if you want to hear more from Richard about the launch, well, he's been everywhere, let's face it, including lots on BBC. But if you look up the Gareth Jones on Speed podcast, it's about Formula One, not drugs.

58:15He's on an episode of that too, discussing Artemis, because Gareth and his co-presenter, Paul Arison, are massive space fans. And that is Space Muffins. Do get in touch with us. We haven't had a postcard for a while, which makes me sad. It's only been like a month or so. Yeah, I'd love a postcard again. You can find the address on the boffin media. You can find the address on the boffin media website. We'll be back next month or thereabouts. Send me a postcard. That's just unnecessary. Just unnecessary. Thanks for listening. You've got social dialed in. Search is doing its thing. So why do your marketing results look the same as six months ago?

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From the publisher
Space traveller Trevor Beattie joins Sue Nelson and Richard Hollingham to describe his obsession with space and flight in Virgin Galactic's space plane. The Space Boffins also discuss NASA's new Moonbase plans and Richard chats to rocket scientist Helen Lewin about the incredible RS-25 rocket. Like this podcast? Please help us by supporting the Naked Scientists

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