Latest / Space Nuts: Astronomy Insights & Cosmic Discoveries / Why Venus May Have Lost Its Moon Forever
Transcript
- 0:00Andrew Dunkley: Hi there. Thanks for joining us. This is
- 0:02Space Nuts, where we talk astronomy and space
- 0:04science and dogs and cats living together and
- 0:08just about anything, really. There's no topic
- 0:10that is, uh, ever, um, ignored.
- 0:14Even when you don't want us to talk about it,
- 0:16we'll talk about it.
- 0:17Actually, we've got one of those storeys in
- 0:19this episode. Uh, not the first one, though,
- 0:21because we're going to discuss Venus. Now, in
- 0:24many ways, Venus is just like Earth, except
- 0:27for one striking difference. Aside from the
- 0:30weather, it doesn't have a moon. Why not?
- 0:33Well, um, yeah, there's probably a very
- 0:35dark reason for that. Uh, satellite
- 0:38pollution. Uh, we're not talking about
- 0:40satellites in orbit polluting, uh, our
- 0:43skies and making life for astronomers very
- 0:45difficult. We're talking about when they come
- 0:47back into the atmosphere and literally
- 0:50pollute our, uh, atmosphere. We'll see
- 0:53what's going on there.
- 0:54And the United States Space
- 0:57Force uniforms have been unveiled. At
- 1:00least one concept, and it's got some tongues
- 1:02wagging, some wiggling and some people
- 1:05scratching their heads. We'll talk about all
- 1:07of that on this episode of space nuts.
- 1:09Professor Fred Watson: 15 seconds. Guidance is internal.
- 1:1210, 9. Ignition
- 1:15sequence start.
- 1:16Professor Fred Watson: Space nuts.
- 1:17Professor Fred Watson: 5, 4, 3, 2. 1, 2, 3, 4,
- 1:205, 5, 4, 3, 2, 1.
- 1:22Andrew Dunkley: Space nuts.
- 1:23Professor Fred Watson: Astronauts report it feels good.
- 1:26Andrew Dunkley: And he's back. Once again, it's Professor
- 1:28Fred Watson Watson, Astronomer at large.
- 1:29Hello, Fred Watson.
- 1:31Professor Fred Watson: Uh, hello, Andrew. You mean we're not going
- 1:34to cover migraines again this week or.
- 1:36Andrew Dunkley: Why not? We can do that if you like. We've
- 1:39talked about that before.
- 1:40Professor Fred Watson: Um, yeah, yeah, we did.
- 1:42Andrew Dunkley: I mean, we've reached that age where the
- 1:44first topic, because I'm the captain of
- 1:47the veteran golfers at our local
- 1:50club and, um,
- 1:53the first topic, whenever you sit down, is,
- 1:55um, your health. And what have you had done
- 1:58this week?
- 2:00Professor Fred Watson: Well, yes, I'm sure that's right,
- 2:03because I'm a little bit older than you, my
- 2:05topics are even more interesting. So I was at
- 2:07a presentation last night where they were
- 2:08talking about coffins, uh, made out of
- 2:11mushroom fibre.
- 2:12Andrew Dunkley: Oh, my goodness. Yeah,
- 2:15okay, that is different.
- 2:17Professor Fred Watson: It's different. Yeah, different. But
- 2:19apparently it works.
- 2:20Andrew Dunkley: Well, it'd be a lot cheaper, wouldn't it?
- 2:22Professor Fred Watson: Yeah, they don't last very long. Two days, I
- 2:24think, is the time it takes to decay.
- 2:26Andrew Dunkley: Wow.
- 2:26Professor Fred Watson: No, actually, I think it might be a bit
- 2:28longer than that.
- 2:29Professor Fred Watson: Very.
- 2:29Professor Fred Watson: Ah, interesting presentation, though, on, um,
- 2:33the. From the Symbioscene
- 2:36Institute, uh, which is looking
- 2:38at the ways that humankind can live
- 2:41more comfortably with its own planet
- 2:44rather than being the terrible Colonial
- 2:48um, species that we've been to date.
- 2:50Andrew Dunkley: Yeah. The problem with that is you've got to
- 2:52get everyone to agree.
- 2:54Professor Fred Watson: Uh, exactly. That was going to be my
- 2:57point which I never really got to raise.
- 3:01Andrew Dunkley: People come up with all these wonderful ideas
- 3:03about how we can do things right. But, and
- 3:06you know, some countries will go, well, you
- 3:08know, we don't want to do that. So we're not.
- 3:11Professor Fred Watson: So I think um, just as, as an idea though and
- 3:14as a concept, I think this has
- 3:17much to uh, um, approve
- 3:20of and it, and the reason what took me
- 3:23there was um. Marnie was part of a panel
- 3:25discussion yesterday.
- 3:28Excuse me, I'm sorry, sorry Marnie, I sneezed
- 3:31in the middle of your promo there. She was
- 3:34part of a panel discussion, uh, which one of
- 3:36the other guests was, was an
- 3:38advocate, in fact the founder of the
- 3:40Symbiosine Institute.
- 3:43Andrew Dunkley: Well I think if you go to um,
- 3:47try to make those kinds of changes in
- 3:50the psyche of humanity, it's going to be
- 3:52a multi generational approach.
- 3:55It's not going to be something we all just go
- 3:57to do the next day. Okay, we're
- 4:00now doing this. It just wouldn't
- 4:03happen.
- 4:04Professor Fred Watson: No, you're right, humans don't work that way.
- 4:06But uh, hopefully with
- 4:09enough panic from climate
- 4:12change, some things will change.
- 4:15Andrew Dunkley: Yes, certainly needs to happen that way.
- 4:18Professor Fred Watson: Indeed.
- 4:19Andrew Dunkley: Shall we get down to business?
- 4:21Professor Fred Watson: Well, why not?
- 4:22Andrew Dunkley: All right, our very first question uh,
- 4:25is focusing um, on our uh,
- 4:28twin planet. Um, when we say twin,
- 4:31we're the good twin, it's the evil twin.
- 4:33We're talking about Venus. Uh, I mean
- 4:36size wise it's similar to Earth. In fact
- 4:39everything about it is similar to Earth.
- 4:41Size, mass, gravity, that kind of thing.
- 4:43Except it's got a God awful
- 4:46weather pattern and it doesn't have a
- 4:49moon. And that's the subject of this
- 4:51particular storey because they're trying to
- 4:53figure out why.
- 4:55Professor Fred Watson: Indeed. That's right. Uh, yes. Often referred
- 4:58to as Earth's ugly sister because of all the
- 5:01things that you've mentioned, the
- 5:02similarities and um, as we're
- 5:05recording it's very prominent in our evening
- 5:07skies at the moment. Really can't fail to see
- 5:10the planet Venus as it uh, approaches its
- 5:13greatest distance from the sun. Greatest
- 5:15angular distance from the sun. In fact it may
- 5:17even have passed it. I've kind of lost track
- 5:19with my confinement to hospitals and things
- 5:22of that sort recently. Uh, but it is still
- 5:24very spectacular in the evening sky. Anyway,
- 5:26a planet about the size of ours, uh,
- 5:29of which we know a lot um, thanks
- 5:32to orbiting spacecraft which have Carried
- 5:34with them radar, uh, uh, equipment in
- 5:37order to be able to map m the surface.
- 5:39Because the atmosphere of course is largely
- 5:42opaque, uh you can penetrate the
- 5:44atmosphere down to surface in infrared. That
- 5:47was done actually by one of my former
- 5:49colleagues at the Anglo Australian Telescope,
- 5:51David Allen, back in the 1990s I
- 5:54think, or maybe 1980s using infrared
- 5:57uh radiation managed to see the surface of
- 5:59Venus which is quite a uh, spectacular
- 6:02outcome. Um, but the best way to do it
- 6:05is with radar and from that we can see the
- 6:06topography.
- 6:07This jury I think is still out on whether
- 6:10uh Venus has plate tectonics because we see
- 6:13conflicting results. Uh, but
- 6:16the one thing that we do know for absolute
- 6:18certain uh, is that it doesn't have a moon.
- 6:21Um, uh, Mercury and Venus, the only two
- 6:24planets in the solar system that do not
- 6:26have satellites, at least do not have
- 6:29natural satellites. Um
- 6:33so the question that you would ask as a
- 6:36scientist is that significant is
- 6:39that um, you know, is
- 6:41it just happen, just the fact that
- 6:44the planet happens not to have a moon
- 6:47or whether it is a uh,
- 6:50situation where Venus once did have a
- 6:53moon. Um, given that moons are pretty common
- 6:56throughout the solar system, perhaps uh,
- 6:58there was a similar formation event to the
- 7:00event that formed our moon when uh, Theia,
- 7:03the object size of Mars clouted the Earth in
- 7:06the early history of the solar system and
- 7:09eventually that coalesced to form the moon
- 7:11which uh, both way. I read a headline not
- 7:14very long ago that looks as though that
- 7:16formation of the moon from that debris cloud
- 7:18might have happened very very quickly. And I
- 7:20can't remember how quickly it was but it was
- 7:22surprisingly quickly. You might have seen
- 7:25that too I
- 7:26Andrew Dunkley: think uh, Jonty and I did actually do that
- 7:28Storey.
- 7:28Professor Fred Watson: Okay, great.
- 7:30Andrew Dunkley: Yeah, um, so uh,
- 7:33yeah I was trying to find it actually through
- 7:35my notes. M seen my notes.
- 7:38These are all past episodes, all my notes.
- 7:41Professor Fred Watson: But I could have nicely filed Ye
- 7:44Andrew Dunkley: it's just a neat pile. It's not file
- 7:48uh, but um, I couldn't find it. But yeah, I
- 7:50was trying to remember what we did about
- 7:52Venus previously and that was it.
- 7:54Professor Fred Watson: Yes, okay. Anyway,
- 7:57um, yes, so Venus may have had the same
- 8:00experience. Uh what uh,
- 8:03would have happened though if uh, Venus had
- 8:05had a moon? Why isn't it there now? And
- 8:08so this is the uh
- 8:11thesis of ah, a group of scientists
- 8:14um led by um, Stephen Cain who's at
- 8:17the University of California Riverside. Uh
- 8:20he uh and his colleagues
- 8:22have looked to see you know
- 8:26what might have happened had Venus had
- 8:29a moon. So it's all done by modelling of
- 8:31course, um,
- 8:34their Comments more or less, as we've just
- 8:37related, uh, this is a comment from Stephen.
- 8:40Venus undoubtedly experienced large impacts
- 8:42just as as Earth has and so has had
- 8:45m as much if not more opportunity to form
- 8:48a moon similar to what we see in our own
- 8:50skies.
- 8:51So, all right, put a moon there in your
- 8:54modelling um, and see
- 8:57what happens. And this is the
- 9:00interesting bit because um,
- 9:02there is a really very neat
- 9:05explanation for why Venus doesn't have a
- 9:07moon. That comes almost straight
- 9:10out of the modelling. Uh, and it's all about
- 9:14what the they describe as the gravitational
- 9:16tug of war between Venus, a
- 9:18hypothetical moon and the sun. And
- 9:21if you track this over billions of years,
- 9:25what you get is a situation
- 9:29opposite to what we've got on um,
- 9:32planet Earth. And that is that
- 9:34the laws of physics dictate uh, that
- 9:37because um, there is
- 9:40basically an impulse given to the moon
- 9:43from the Earth's rotation slowing down,
- 9:46uh, it means the moon is drifting away from
- 9:48Earth. And that's um, something we've
- 9:51talked about, it's well known, well
- 9:53established, one of those phenomena that
- 9:56we recognise as being scientific facts.
- 9:59But uh, what they
- 10:02found, what these researchers found when they
- 10:04put the same sort of analysis into Venus and
- 10:07a moon, uh, the moon would go the other way.
- 10:10Uh, it would basically eventually,
- 10:14um, it would start to drift
- 10:17inwards towards Venus
- 10:20and spiral towards the
- 10:22planet, eventually passing within the
- 10:25Roche limit, which is where you can't have
- 10:28something uh, staying together because of the
- 10:31competing gravitational pull on one side and
- 10:33the other what we call the tidal effect.
- 10:37So it would break up, um, and
- 10:40uh, even a
- 10:43big moon, uh, would not
- 10:46necessarily survive.
- 10:47Uh, in fact one of the comments that Stephen
- 10:50Kane makes is an interesting aspect is that a
- 10:53heavier moon is destroyed faster since
- 10:56a massive moon would drain Venus's spin so
- 10:58efficiently that it hastens its destruction.
- 11:02Uh, and so um, that
- 11:05is the basic outcome of
- 11:08this work. I um, think
- 11:12in uh, fact I'm sure that they looked
- 11:14at a whole variety these
- 11:17researchers of different scenarios. Uh,
- 11:20and one of the questions they addressed was
- 11:23are there any circumstances under which a
- 11:25Venusian m moon could actually survive?
- 11:29And the comments that Stephen, uh, Kane made
- 11:32on this are uh, survival came down to two
- 11:34main things. Venus had to be
- 11:37spinning fast when the moon formed
- 11:40with a day shorter than about 12 hours. And
- 11:43the moon couldn't be too massive up to
- 11:45roughly the mass of our own moon. In that
- 11:48narrow window, the moon migrates outwards and
- 11:50stabilises much as the Earth did. Outside
- 11:53that range, the moon is unfortunately
- 11:56doomed to be consumed by Venus.
- 11:59So a Surviving moon would have to be
- 12:02modest in size, orbiting a rapidly spinning
- 12:05early Venus, which are conditions that don't
- 12:07match what we think the early Venus was
- 12:09actually like.
- 12:11Uh, and so, you know, the
- 12:14upshot of this is,
- 12:16um, maybe indeed Venus did
- 12:19have a moon, which eventually was
- 12:22essentially gobbled up by Venus. It was
- 12:25drifted inwards, uh, was torn apart and the
- 12:27debris essentially rained down on the planet.
- 12:31Um, the
- 12:34next step would be essentially
- 12:38to look for any, what you might
- 12:41call geological evidence,
- 12:44uh, on Venus that would
- 12:47give you some
- 12:49hints that this is what happened. Uh,
- 12:52forgive me, Andrew, because I think I'm about
- 12:54to sneeze.
- 12:55Andrew Dunkley: Yeah, I've been fighting one for the last few
- 12:57minutes too.
- 12:58Professor Fred Watson: Why are we both sneezing? It's the time of
- 13:01year. That's right. Uh, let me, um, quote
- 13:04again, uh, Stephen Cain. Uh,
- 13:06finding direct observational evidence is
- 13:09pretty tough. A moon lost billions
- 13:12of years ago would leave little to no direct
- 13:14trace we can point a telescope at today
- 13:17so we can't observe the event itself.
- 13:20However, there are indirect avenues. For
- 13:22example, if a moon was destroyed
- 13:25and its debris rained down on Venus, it could
- 13:28have left a chemical fingerprint in the
- 13:30planet's surface or atmosphere. And upcoming
- 13:33missions to Venus, including NASA's da
- 13:35Vinci, uh, will measure the
- 13:38atmospheric composition in detail. So it is
- 13:41possible, uh, that we might eventually, um,
- 13:45find something. Uh, one other comment from
- 13:47Stephen Cain is there's a broader test beyond
- 13:50our solar system because our results predict
- 13:52that slowly rotating Venus, like planets
- 13:55around other stars, should generically
- 13:58lack large moons. So as astronomers
- 14:00begin searching for moons around exoplanets,
- 14:03that's a prediction that can eventually be
- 14:06checked against real data. Uh, so, yeah, it's
- 14:09very, very nice piece of work. Uh, I think a
- 14:11very interesting outcome as well.
- 14:13Andrew Dunkley: Yeah, and it sort of harps back to a storey
- 14:16from a few weeks ago about, uh, how they
- 14:19do think they have found continental size
- 14:24anomalies, um, deep in our
- 14:26crust that suggests parts of Theia
- 14:29exist.
- 14:30Professor Fred Watson: Might be parts of Theia. That's right, yes,
- 14:32indeed. Yeah.
- 14:33Andrew Dunkley: So, yeah, then you can draw a similarity
- 14:35there. And so, yeah, there probably is
- 14:37evidence if that's indeed what happened. But,
- 14:40yeah. Ah, how do you find it?
- 14:43Professor Fred Watson: Well, um, we're very, uh, resourceful, uh,
- 14:46in that regard, I think. I think, um,
- 14:48scientists, particularly astronomers, because
- 14:50they, you know, they've got.
- 14:52All they've got is what comes in, usually on
- 14:55electromagnetic radiation, apart from a few
- 14:57satellites going here and there. Uh, but,
- 15:00yes, um, uh,
- 15:03uh, I think we might well
- 15:06get some hints as to whether this has
- 15:08happened in the past or not.
- 15:09Andrew Dunkley: Yeah. Okay. Uh if you'd like to read up
- 15:12on that storey uh great article@spare.com or
- 15:15you can uh see the pre peer
- 15:18reviewed paper on the repository site
- 15:21arXiv. This is space Nuts with Andrew
- 15:23Dunkley and Professor Fred Watson Watson.
- 15:28Professor Fred Watson: Roger, you're lots Space Nuts.
- 15:31Andrew Dunkley: Okay, let's uh get close to
- 15:34home. In fact uh, we're getting right down
- 15:37and dirty into our own atmosphere with this
- 15:39storey and it's got to do with satellite
- 15:41pollution. Now the number of satellites that
- 15:44are starting to appear in our sky is
- 15:47somewhat um, disturbing when it comes to
- 15:50um optical astronomy. In fact I
- 15:52saw a photo the other day where this problem
- 15:55was exhibited. Uh where they'd done a little
- 15:58bit of time lapse and the
- 16:01satellite that image were
- 16:04horrifying. Uh if you're an astronomer they
- 16:07were probably really interesting for
- 16:09other people. But uh, it looked the same as
- 16:12um the contrails that you see
- 16:15airliners leaving the sky. Um
- 16:19but it was actually the light reflection
- 16:21images of the uh satellites. But the
- 16:24other problem with them is when they come
- 16:26back down uh, they burn up and
- 16:29what happens to all that stuff? And that's
- 16:31the nuts and bolts of this storey.
- 16:34They've chased a couple down to try and
- 16:36figure out what happens to you know
- 16:39everything that burns off them.
- 16:42Professor Fred Watson: Exactly. So and um, it is a
- 16:45um. This uh essentially
- 16:47experiment is very well timed because at the
- 16:49moment we're with the Starlink
- 16:52constellation which I think is kind of
- 16:54already past 12,000 spacecraft. Uh
- 16:58not all of them functioning. Um
- 17:01those are re entering at about one a day.
- 17:04That's the current rate. And every time one
- 17:06of those re uh enters the atmosphere it burns
- 17:09up at about 90 kilometres or thereabouts
- 17:12above the Earth's surface and its
- 17:15contents, its metallic contents become part
- 17:18of the upper atmosphere. Uh and we
- 17:21already are seeing um, higher levels of
- 17:24certain oxides of aluminium and things of
- 17:26that sort.
- 17:26Uh uh that are probably the result of
- 17:29these uh reentering satellites. So
- 17:33uh, the European Space
- 17:36Agency uh has
- 17:39I uh think uh in
- 17:41collaboration with a number of other
- 17:44organisations. Uh what they've done
- 17:46is they have decided that they're going to
- 17:49cheque this out directly. And the way they've
- 17:52done that is by hiring a private jet as
- 17:55you do. Um and it's
- 17:59using uh, that uh private jet. They've
- 18:01basically chased a pair of reentering
- 18:04satellites. Um both were due to re
- 18:07enter uh at about the same um
- 18:10place I think a day apart. Um and so
- 18:13what they've done is um, actually
- 18:16basically followed these In a jet which
- 18:18is festooned with uh
- 18:21spectrometers, images, uh and
- 18:23all of the equipment that we use to try
- 18:26and learn about what's happening when
- 18:29things burn up in space. Uh and
- 18:32so uh, um essentially
- 18:35uh the satellites tracked
- 18:38uh in detail uh I like
- 18:41um the spacecraft that
- 18:44they chose because there was a constellation
- 18:47called Cluster which I think we might have
- 18:49talked about many years ago. A European Space
- 18:51Agency constellation which had four
- 18:54individual spacecraft uh which
- 18:57were named after well known
- 18:59dances, Tango, samba, rumba and
- 19:02Salsa.
- 19:03Uh were the quartet of uh the Cluster
- 19:06spacecraft and they actually were studying
- 19:09the way the Earth's magnetic field uh
- 19:12interacts with the solar wind. And they were
- 19:15launched back in I think back in the 90s.
- 19:17It's a long, long time ago. But their
- 19:20orbits um were
- 19:23decaying and in fact uh, Rumba and Salsa
- 19:26I think decayed quite some time ago. So what
- 19:29was uh in question here was since
- 19:32they you know these spacecraft are still
- 19:34sending telemetry back so you know what their
- 19:36velocity is, you when and where these things
- 19:39are going to re. Enter the atmosphere. Uh and
- 19:41it was Tango and Samba which
- 19:44were basically uh,
- 19:47um they had controlled RE entry and
- 19:50it was basically that re entry that was uh
- 19:53observed by this mission using ah
- 19:56a chaser jet, if I can put it that way
- 19:59uh over the South Pacific Ocean. So
- 20:02uh, what we've seen I think is that this was
- 20:05successful. There's been um
- 20:09a bit of a report saying that um
- 20:12the outcome of the experiment was successful
- 20:14and that they got the data that they wanted.
- 20:16I'm uh not sure whether we yet have the
- 20:19details of what that
- 20:21analysis was, you know in terms of
- 20:24what the exact uh effects on the
- 20:27atmosphere and the byproducts that
- 20:30came from uh the reentry of these two
- 20:32spacecraft.
- 20:33So I think those results are still yet
- 20:36uh to be described but at least the
- 20:38experiments are worked. Uh apparently there
- 20:40were eight scientists on board this aircraft
- 20:43and they um observed
- 20:46the satellites from about 90 kilometres
- 20:49down to something like 65 to
- 20:5270 kilometres when they stopped, basically
- 20:54stopped burning up. Uh so
- 20:58they were then completely vaporised. Uh so
- 21:00these details uh as I said we hope we will
- 21:03find a little bit more uh as the results
- 21:06come from that group of
- 21:09scient, they've
- 21:11Andrew Dunkley: finished analysing the data and
- 21:14start uh publishing uh it could
- 21:16turn into something quite controversial
- 21:18because if they reveal that there's some
- 21:21really nasty stuff coming out of all of this,
- 21:24you know a handful of satellites doing this
- 21:26probably no big deal but we're going to be
- 21:29talking over decades to come
- 21:32tens of thousands burning up,
- 21:35probably more.
- 21:36Professor Fred Watson: Yeah. When it's one a day, uh, which it is
- 21:39now, then, uh, you're potentially in trouble.
- 21:41And you're absolutely right, Andrew, because
- 21:44one of the possibilities is something
- 21:47we thought we'd licked back in the 1980s, and
- 21:50that's ozone depletion. Um, that's one
- 21:53of the possible outcomes of this. And that
- 21:56would then become a really hot political
- 22:00hot potato politically. Uh, given
- 22:02that you've now got people saying, well,
- 22:04we've got all these pollutants that are
- 22:06actually starting to affect the behaviour of
- 22:08the upper atmosphere. And on the other side
- 22:10of the coin, you've got people saying, well,
- 22:11we need Starlink because it's actually a
- 22:13vital, uh, service, it's vital
- 22:15infrastructure now on so many fronts. You've
- 22:18got a really quite interesting situation
- 22:20emerging, I think.
- 22:21Andrew Dunkley: Sure have.
- 22:22Professor Fred Watson: And,
- 22:24Andrew Dunkley: yeah,
- 22:28where do you point the finger, if you want to
- 22:30put it that way? Uh, how do you, um,
- 22:33curtail these effects and whose
- 22:35responsibility does it become?
- 22:38Professor Fred Watson: Yeah, you start looking, I think, at, um,
- 22:40what you make your spacecraft out of. The
- 22:42Japanese have demonstrated that you can make
- 22:44wooden spacecraft and operate them
- 22:46successfully. Uh, and I think wood
- 22:48is one of the more benign, uh,
- 22:51materials, um, that would burn up. Of
- 22:54course, you still got soot and carbon coming
- 22:56off that. But, um, it might not be the
- 22:59aluminium that, um, is
- 23:01certainly the biggest constituent of, of what
- 23:04is coming from present satellite reentries.
- 23:07Andrew Dunkley: Yes, indeed. M. So, yeah, it's a case of,
- 23:10watch this. Space.
- 23:11Uh, we will probably learn more about this
- 23:14and, uh, we'll tell you all about it when
- 23:17that day comes. Um, but they'll be analysing
- 23:19the data at the moment and,
- 23:22uh, we hope it's good news, but I've got a
- 23:24feeling it won't be, Fred Watson.
- 23:26Professor Fred Watson: M. Yeah, I think you're right.
- 23:28Andrew Dunkley: Okay. Uh, that is a storey you can Also
- 23:31read@spare.com this is Space
- 23:34Nuts. Andrew Dunc, frankly, here with
- 23:36Fred Watson Watson,
- 23:41Professor Fred Watson: Tranquilly Base here. The Eagle has landed.
- 23:44Space Nuts.
- 23:46Andrew Dunkley: Our final storey. Uh, Fred Watson,
- 23:48takes us into the realm of science fiction,
- 23:51at least in part. Uh, they have just
- 23:54unveiled what might be
- 23:56the new United, uh, States
- 23:59Space Force uniforms.
- 24:02And they've got tongues wagging
- 24:05because they've drawn some similarities
- 24:07between the uniforms. And when I first saw
- 24:10them, my mind immediately went to,
- 24:13um, SS uniforms of World War II.
- 24:15Professor Fred Watson: Exactly.
- 24:17Andrew Dunkley: And, uh, that is the controversy because they
- 24:19do not sort of. I mean, it's the first
- 24:22thing that comes to mind when you look at
- 24:24these designs which have just been unveiled.
- 24:28Professor Fred Watson: Um, and Just to clarify where this has come
- 24:30from. It's come from Truth Social. Uh, it's
- 24:33one of uh, President Trump's
- 24:37basically, uh, uh, one of his posts on Truth
- 24:39Social. The um, as yet
- 24:42unconfirmed design is how it's being
- 24:44described.
- 24:45But yes, um, that was my thought too
- 24:48when I looked at this. I thought, wait a
- 24:49minute, I've seen that sort of thing before.
- 24:52Um, but you are ah, probably aware as well of
- 24:55the sort of science fiction links that there
- 24:58are with uh, with this, where this
- 25:00uniform is said to have come from.
- 25:02Andrew Dunkley: Yes, this, uh, back in the
- 25:0590s, the late 90s, uh, 1997, there was a
- 25:08movie released based on a book called
- 25:10Starship Troopers. And
- 25:13anybody who's watched that film, and I've
- 25:14watched it multiple times, it's a bit
- 25:17tongue in cheek. Um, there's a lot of,
- 25:20um, to use the Australian vernacular,
- 25:23Jingo is a m. Minute. Um, but it
- 25:26portrays a, ah, human society that is
- 25:29very, very authoritari, very,
- 25:33very super aggressive, very um,
- 25:36competitive. Uh, lots of.
- 25:39It would be a very tense place to live
- 25:42if Earth as we know it,
- 25:45um, was the way Starship Troopers
- 25:48portrays human life. And they're at war
- 25:51against the bugs, um, who live
- 25:54on a planet called Clandathu. You know what's
- 25:57sad about this, Fred Watson? I'm doing it all
- 25:58from memory. And they have been shooting
- 26:01asteroids at ear. And um, in the
- 26:04movie they destroy the city of Buenos Aires.
- 26:06And that sort of causes um,
- 26:09the humans to up the ante in terms of
- 26:12trying to eliminate the bugs. Uh, and
- 26:15so it goes on. But what's striking about it,
- 26:18not only the authoritarian,
- 26:21um, nature of the military in
- 26:25this film, is the uniforms.
- 26:28They are dead set. Um, just
- 26:31like the uniforms that have been
- 26:33suggested as the new U.S. space Force
- 26:36uniforms. I did a bit of research on this,
- 26:38Fred Watson.
- 26:39Um, uh, the uniforms in
- 26:42um, the 1997 film
- 26:45Starship Troopers were deliberately designed
- 26:48by a costume designer, Ellen
- 26:50mirojink, uh, to evoke
- 26:53fascist aesthetics.
- 26:55Professor Fred Watson: Yeah, so.
- 26:56Andrew Dunkley: So they're basically designed
- 26:59around the Nazi military uniform.
- 27:02That was deliberate. That was done on
- 27:04purpose. And now we're seeing These new
- 27:06uniforms, 2026,
- 27:09um, being unveiled, um, based
- 27:12on the uniforms from Starship Troopers
- 27:15and um,
- 27:18Star Wars. If you remember, um, the Empire
- 27:21uniforms were of a similar ilk. They
- 27:24are, look, don't get me wrong, they're quite
- 27:26striking, quite striking. But
- 27:30they immediately put you in um,
- 27:33a mindset of going, whoa.
- 27:36Professor Fred Watson: What?
- 27:39Andrew Dunkley: You're not impressed? You're just going,
- 27:43hello. What are we thinking here? Why are we
- 27:46doing it this way. That's kind of the
- 27:49reaction I had head.
- 27:51Professor Fred Watson: And me too. Um, when, when I saw
- 27:54it was the boots, I noticed first I thought,
- 27:56wait a minute, I've seen that sort of thing
- 27:57before.
- 27:58Andrew Dunkley: Yeah, Jack Boots.
- 27:59Professor Fred Watson: Yeah, exactly.
- 28:00Andrew Dunkley: More or less. Yeah, yeah, they're quite,
- 28:02um, I mean, I, I think
- 28:05uniforms are an amazing thing. Uh, I, I don't
- 28:08know where they originated. I, I did look it
- 28:10up once and I, I, I think it was the British
- 28:13or no, the Romans. The Romans, um, that
- 28:16invented uniforms. But, um,
- 28:19everybody has them now and, and some of them
- 28:21are incredible. I mean, uniforms for some
- 28:23reason make human beings look better
- 28:27somehow. Um, and
- 28:31these ones, I don't know if you're going to
- 28:33get the right kind of psychological
- 28:36reaction when, if they
- 28:39go down this road. And that's a, that's a big
- 28:41if, I guess.
- 28:43Professor Fred Watson: I don't know where this storey's going
- 28:46really, Andrew. And, um, you know, what
- 28:49we are likely to see coming out of the Space
- 28:52Force itself rather than just coming from the
- 28:54President's fertile, uh, mind.
- 28:58But, um, yes, I didn't find it
- 29:00something that cheered me up particularly.
- 29:03Uh, I thought it was very much along
- 29:06the lines that you've described something
- 29:08that we could probably well do with that.
- 29:10Uniformly so.
- 29:11Andrew Dunkley: Yeah. But what I would say to, uh, Space
- 29:14Nuts listeners is have a look for yourself
- 29:17and be your own judge. Don't, you don't have
- 29:19to believe what we think. Um, we're just.
- 29:23As soon as I opened the storey that
- 29:25Fred Watson sent me, I went, what is this?
- 29:29Before I read a thing, I saw the picture and
- 29:31went, what are we looking at here? And then I
- 29:34read the caption and went, no,
- 29:38seriously. Ah, anyway, have a look.
- 29:41Uh, you can see it@, uh,
- 29:43spaceconnectonline.com
- 29:46it's um. Yeah, or just do
- 29:49a search through your favourite search engine
- 29:51of United States Space Force Service
- 29:54dress uniform, I think is what it's called.
- 29:57Um, and. Yeah, well,
- 30:01we'll leave it to you to decide what you
- 30:03think. Uh, ah, it's a
- 30:06difficult one because, uh, it's so divisive.
- 30:09Just that look in
- 30:11itself without saying anything, um, would
- 30:14be instantly divisive, I venture to
- 30:17say.
- 30:18Professor Fred Watson: Yeah, you're probably right.
- 30:21Um, yeah, to me
- 30:24it just portrays arrogance of a kind that,
- 30:26um, we could do without.
- 30:28Andrew Dunkley: Yeah, possibly so.
- 30:30Professor Fred Watson: All right.
- 30:31Andrew Dunkley: Uh, yeah, As I said, spaceconnectonline.com
- 30:34if you want to cheque that out. And I think
- 30:36we are just about done.
- 30:38Fred Watson, thank you so much.
- 30:39Professor Fred Watson: It's a pleasure, Andrew. Always interesting
- 30:41to chew the fat over these issues, no matter
- 30:43what they are. We did get away from our
- 30:46normal stocking trade there, uh, with the
- 30:48uniforms. It's not often we talk about, uh,
- 30:51fashion in terms of, um, you know, space
- 30:53fashion, if I can put it that way.
- 30:55Andrew Dunkley: Well, that's what it is, isn't it, really?
- 30:57Space fashion.
- 30:58Professor Fred Watson: Yeah.
- 30:58Andrew Dunkley: Well, we've talked about the flight
- 31:01suits, certainly.
- 31:02Professor Fred Watson: Yes, we have.
- 31:03Andrew Dunkley: When they've done major upgrades on those and
- 31:05their incompatibility between space agencies,
- 31:08so.
- 31:08Professor Fred Watson: That's right.
- 31:09Andrew Dunkley: There's always controversy somewhere, even in
- 31:12fashion. Uh, thanks, Fred Watson. We'll catch
- 31:14you on the next episode.
- 31:15Professor Fred Watson: Sounds great.
- 31:16Andrew Dunkley: Thank you, Professor Fred Watson Watson,
- 31:18astronomer at large. And don't forget to
- 31:20visit us online between
- 31:21episodes@spacenutsio or
- 31:24spacenutspodcast.com and
- 31:27you can send us messages there through the
- 31:29Ask me anything link up the top, or you can
- 31:30visit the shop, or you can sign up for the,
- 31:33uh, Astronomy AstroDailyPod Newsletter, uh,
- 31:36and whatever you like. And if you want to
- 31:38become a supporter, you can hit the supporter
- 31:39button and see how you can do that too. And
- 31:42thanks to all our supporters, uh, for, uh,
- 31:44getting behind us with a cup of coffee and a
- 31:47cream bun.
- 31:49Uh, and thanks to Huw in the studio, uh, who
- 31:51couldn't, uh, be with us today. He wanted,
- 31:53uh, to be the first in line for a Space Force
- 31:56uniform. And he's still waiting.
- 31:59And from me, Andrew Dunkley, we'll catch you
- 32:01on the next episode of Space Nuts. Until
- 32:03then, bye bye. Space Nuts. You've been
- 32:06listening to the Space Nuts
- 32:07Professor Fred Watson: podcast,
- 32:10Andrew Dunkley: available at Apple Podcasts, Spotify,
- 32:13iHeartRadio or your favourite podcast
- 32:15player. You can also stream on
- 32:17demand@bytes.com.
- 32:19this has been another quality podcast
- 32:21production from bytes.com.