NASA's Take on Starship Progress, Farthest Thing You Can See, Galactic Lagrange Points | Q&A 241

what's the farthest thing you can see with your eyes what am I excited about James web discovering next and do Galaxies have the gar points all this and more in this week's question show it's time for the question show your questions my answers as always wherever you are across my channel if a question pops into your brain just write it down I'll gather a bunch of them up and I will answer them here now we do this show live every Monday at 5:00 p.m Pacific time so if you want to get a chance to sort of experience the live show have your questions answered chat with me other people we do this on the YouTube channel every Monday at 5: now you should see the next event somewhere on my channel so you should have some way to like remind you that this is going to happen but if you subscribe to the channel and you click on the notification Bell then you will get an email from YouTube that'll tell you when the show is going to happen next and in fact that is a permanent link to the question show because we make it unlisted afterwards so we can edit it and release it as the QA so just that's the hack all right let's let's get into the questions John Kelling wasn't there a rocket that had a sort of ejection thing for the crew in case of a failure during launch what will happen to everyone on Starship if things go badly during a launch so back in 1986 the space shuttle Challenger exploded as it was lifting off and it killed all of the seven astronaut crew on board and after the explosion and after the disaster NASA pulled together a team of people to look through and sort of investigate the accident and try to understand what happened to make sure that it could never happen again and one of the things that they realize and this is kind of dark is that after the twin solid rocket boosters sort of exploded beside the Space Shell and as the fuel tank exploded the Orbiter was kicked free and that's sort of like you know the plane part and was probably intact for a fairly long period of time possibly even to the point that it crashed back into the ocean and the astronauts maybe were still alive when that happened and so this was one of the big design flaws of the Space Shuttle and they always knew that this was going to be a problem but with an actual disaster NASA decided that they had to come up with some sort of solution to this problem now you can't have a Escape rocket like a retro rocket on the Orbiter that would allow it to kick away from the fuel tanks and all of that if there was going to be a problem so what they decided to do instead was they provided the astronauts with a pole and so the astronauts would be on the space shuttle they would if there was a problem they needed to evacuate from the shuttle there was only a certain period of time that they could do this and they would open up the door they would extend this pole and then they would they would sort of clip onto the pole and they would then slide out to the end of this pole which would get them sort of down below and away from the wings of the Space Shuttle and then they would fall and then their parachute would open up and they would be able to parachute to safety but as I said there was sort of a small window that this was going to be possible and you know when you look at crew Dragon especially and the Boeing Starliner they both have crew escape capability so if there's a problem if the rocket is exploding there's a reason that they need to evacuate from the rocket they can push the button and the capsule has its own rockets on board and it will be able to jump off of the rocket and get itself clear of whatever disaster is unfolding and it's quite elegant and it works really well and it's been tested several times you know not in a disaster but it's been tested several times and so this method of having a the rocket having the capsule right on the very top and having a way for the capsule to get away from it is absolutely critical to the largest margin of safety that you want now when we look at Starship you've got the super heavy booster and you've got Starship on top of it and one of the things that they tested with this latest version of Starship was the ability to to do a hot staging so they fire the Rockets of Starship while it's connected to the super heavy and that allows it to escape from it and so in theory if there was a problem with super heavy then Starship could fire its Rockets early hot stage away from super heavy and get off the pad but I don't know like the the when you think about the size of the crew Dragon it's tiny very low mass compared to the mass of the booster and so it's able to just leap off the pad if there's a problem but Starship is very heavy and so you're going to need some time for it to get up to speed to get away from super heavy if there's a problem but that's your escape and you know we're recording this before we really truly understand the capabilities the downside the tolerances and all of that with the Starship super heavy stack if everything goes terrific then Starship will demonstrate that it works really well that that it's very safe that no there's never a problem these things never explode um and they're able to carry astronauts safely to orbit and also re-enter the earth atmosphere safely if not and if they just can't get the safety margins down then you're probably going to have to look at some kind of Alterna of way that you get humans into space get them to space on a crew dragon and Starships just never carry people and then once you're in space then you can have your people come on board a Starship and fly to some destination or go into orbit around something or whatever and then if they want to come back to earth they get back into the crew dragon and crew dragon is a very safe vehicle to bring them back down to the surface so you know right now we don't know how this is all going to play out it might be that Starship works great and it performs its requirements and it's the One-Stop shop to get you to and from space and it might be that it just never gets safe enough that it meets the kinds of needs that space exploration is going to require so we're going to have to watch how this all unfolds together I'm sure you've noticed the Star Trek planet name that's appeared above my shoulder and this is a way for you to vote for you to tell us what you thought was the best question this week the best answer and the winner was talk about Triton please which I think is great like what a great question yes I love to talk about Triton all the time anytime anywhere so I I agree that was a great question I'm glad I was able to give an answer so watch for those names beside every question we'll have a list in down in the show notes you can see all of the names and then at the end of the episode put into the comments the question that you like the best and that sort of shows like you're watching to the end you're judging all of the questions and you're giving us the one that stood out and it means a lot to us so and next week we will vote for the one that or next week we will celebrate the one that won thanks David Swinson do Galaxies have lrange points LR point question yes uh so okay so LR points of course these are the five stable points around any two objects with mass so they have to be differing Mass so you've got say the Sun and the Earth you've got the Earth and the moon you've got the Sun and Jupiter and there are the five points the three that are lined up between the two objects and then you've got the one point that's ahead in orbit and the one that's behind and that gives you your five and here are the rules right you've got to have two masses that are fairly different that if they're the same then you have a binary object and you don't have L gr points and that the the lrange points themselves have to be able to hold an object that is of negligible Mass compared to those two masses so now let's look at a Galaxy if you have just a Galaxy then it's it's not going to have a lrange point it's like if you looked at the sun the sun doesn't have a lrange point but if your Galaxy has a satellite Galaxy now you've got your two masses you've got the main Galaxy you've got the satellite Galaxy and the satellite Galaxy is going around the main Galaxy and so you're going to get your lrange points you're going to have the the ones that are going to be head and behind in the orbit of the dwarf Galaxy around the main Galaxy you're going to have the ones that are it's a little farther away from the from the dwarf Galaxy the one that's in between the dwarf Galaxy and the main Galaxy and the ones on the other side of the Galaxy at roughly the same distance as the dwarf Galaxy and those are your three the gr points now the three that are lined up they're going to be unstable and so anything you put there is going to fall away but the ones that are ahead and behind could be stable and you know that would be equivalent to the Trojan regions around Jupiter but when you think about like the sun which is effectively a sphere and you think about Jupiter is it's effectively a sphere yeah it's a little bit of an oblate spheroid but it's a sphere and so the lrange points are these very tight constrained regions around those two objects but when you think about a Galaxy right it's this gigantic Blobby mass and it's got all of this additional gas and dust that's surrounding it and the sort of the larger confounding question to this is what is the effect of dark matter because when we look at the rotation curve of the stars in a galaxy like milkway they are orbiting around and they don't orbit in the way that planets orbit around Stars they orbit in a way that is as if they are all kind of at a certain point they're all orbiting at the same speed and the only way you could get that is if there's a much larger amount of mass that is sort of infolding all of the stars that is 10 times the mass of the stars and so when you look when you think about the interactions the gravitational interactions between that main Galaxy and that satellite Galaxy you're not thinking about the dark matter there's probably this gigantic dark matter that is infolding both of the dwarf galaxies and so then you've got to think about okay we need to get to a place where you've got a Galaxy and then it's dark matter Halo can be kind of considered the one object and then you've got some other dwarf Galaxy that is far enough away that it's no longer in the Halo and it's got its own Dark Matter sphere and then maybe you're going to be able to are getting those lrange points but I wonder like what would collect in Galactic lrange points in the Trojan regions as a as two galaxies or as a smaller Galaxy is orbiting a larger galaxy far enough away that the Dark Matter isn't Ming it up midnight lightning what do you hope James web discovers next about well I think the answer to this one is obvious which is that we're all excited and waiting for the next planets in the trapis one system to be observed by web we've had trapis 1 B and trapis 1 C but there's five more planets and three of them are in the habitable zone around this red dwarf star and astronomers were hoping maybe that the second planet was going to have some kind of atmosphere maybe be some kind of Venus analog but so far the observations are the first planet is airless like a super Mercury the second planet is aess so a second Super Mercury and now you're going to move your way out through the rest of the planets in the in the system but we're still waiting we're still waiting and so that's the big one you know beyond that I mean there are lots and lots of other really interesting places there was a paper that came out and we reported on in space bites that a Consortium of hundreds of astronomers have put together a proposal to analyze the center of the Milky Way and of course this is the region where the super massive black hole is at the heart of the Milky Way wouldn't it be amazing if we got this detailed analysis of the region around the super massive black hole cuz you know we've got these images of the The Event Horizon around the super massive black hole at the heart of the Milky Way but what about this environment around it and like one of the really big mysteries about the center of the Milky Way is that there are enormous regions of star formation and you know there are thousands of times more stars like more densely packed with stars in that region of the Galaxy than our part and so here sure Stars can form and and you're going to get planetary discs around them but they're finding these at the heart of the Milky Way a place where no one thought that you would get new star formation and yet there are hundreds thousands in just one nebula forming alone and that's a big mystery and so some really detailed observations from web will help resolve that James Huffman what's the farthest naked eye object I would say the farthest one that you can see is Andromeda and of course that is 2.5 million light years away and you can see it like if you've got nice dark skies and and you know where to look you can see Andromeda it's actually very big like if you compare Andromeda with the size of the full moon it's about the size of about nine full moons so imagine a grid of nine full moons in the sky that is how big Andromeda is if you could sort of see it with the same level of detail as the moon but you can't because it's fairly faint and dim from our eyes and yet you can see it with the unated eye and also in some other conditions you can see another galaxy another big Galaxy you can see m 33 so you can see M31 which is Andromeda and then m33 which is the Galaxy in triangulum and that's a little harder to spot and it's a little bit farther away and so I would say triangulum with perfect seeing conditions is the farthest Galaxy you can see now there are some other galaxies that you can maybe see some of the ones in Ursa Major around the Big Dipper but those are like the ones you can confidently see with the naked eye Visto 2D Lee cronin's assembly theory predicts life being probable common in the galaxy thoughts just a journalist not a scientist and so you know as a journalist I would report that Lee Cronin uh predicts that life is going to be probable in common in the Galaxy now I did an interview with Lee Cronin a couple of years ago and it was absolutely fascinating he's such a creative thinker somebody who uh just thinks outside the box with a lot of the ideas that he's working on and so I'm going to sort of encourage you to go and watch that interview that I did with Lee Cronin it's absolutely fascinating it's like what he was proposing back then was a sort of universal way to search for Life what you do instead of like trying to spot any kind of physical process whatever is you just take all of the material that you can get your hands on and you just run it through a mass spectrometer and you are just looking for complicated molecules and the assumption is is that life tends to produce more complex molecules than non-life and so if you take a sample and you're getting High incidents of complex molecules then that is a sign that there could be life in your sample and then you could then fall on with other methods to be able to follow so it's interesting conversation and that's just like the be like I know Lee Cronin has come on to to Lex Fan's show a few times and and he's always a treat to listen to roadside Rebels was the movie The Martian anywhere even close to the way it'll be on Mars yeah the marshan was pretty scientifically accurate I actually just recently watched The Martian about three months ago and you know when I first read the book I was just I was blown away by how detailed and accurate the book was and then when I watched the movie they did a great job of telling the book although there was a couple of things that were incredibly realistic and kind of frustrating because I don't want to spoil it but if you've read the book and you've watched the movie then you know exactly what I'm talking about uh about Iron Man in the end but the various bits and pieces of the movie were really done very very well the communications delays him finding the plutonium RTG to keep himself warm in the amount of solar panel power that he was able to get and the time that it would take for Cycles between Earth and Mars like like Andy Weir did all of the math consulted with Scientists to get everything as right as humanly possible now there's a couple of things that were unrealistic the first thing that was very unrealistic was the wind storm so in the beginning of the movie there's this giant dust STM that blows up and it is threatening to blow over the ascent module for the spacecraft and it knocks Watney into the sand and they have to leave him behind and the reality is that on Mars the air pressure is 1% the pressure that it is on Earth and so you could you couldn't even fly a kite in a hurricane on Mars the only reason that the Mars helicopter can fly is because the rotors are spinning at thousands of RPMs and they're making up for low air pressure with just Brute Force speed so you could stand out in a really powerful dust storm your solar panels would be covered and you would have a hard time seeing around you but the wind just wouldn't be that damaging and Andy Weir admits that like when I talked to Andy about that and he was like yeah no I know I knew that was unrealistic but I wanted a way to have him stuck that was very dramatic and that was the one that he picked so that's the big one you know there were minor issues um but apart from that I thought it was a really nice accurate telling of what it would be like for a research station on Mars now there's a few other things that are probably a problem although you know some of this is a little newer than than what they knew back then so you know the regolith on Mars is filled with a very toxic substance called perchlorates and so he wouldn't have been able to just grow potatoes in the procor it's kind of like growing them in Poison but you can wash the soil so there's ways to treat the regolith on Mars so that you could uh get the proc chlorates out and then be able to start to grow but you couldn't just just like dig it into the sand and go from there um and then the other thing and this is sort of fairly new is it appears that the the amount of cosmic radiation and and solar radiation that's hitting the surface of Mars is too damaging for plants to grow unprotected and so the dream is that you've got this greenhouse and you've got your Martian plants out there you know or your poop potatoes or whatever and you're growing them outside and Things Are just great and you're they grow just like they do well on Mars the amount of light that actually falls on the ground is about one qu what we get on Earth and so imagine how your plants would appreciate it if you only give them one quarter of the sunlight but also you're getting this damaging Galactic Cosmic radiation which is incredibly dangerous destroys DNA causes radiation damage increases chances of cancer as well as you're getting solar storms and yeah if there's like one solar storm you're like oh there's a solar storm everybody hide right and you go underground and you wait for the solar STM to pass but you can't do that with your plants your plants are going to have to remain out on the surface under the glass getting hit by the radiation and so he probably wouldn't have been able to grow poop potatoes to keep himself alive you know like I'm sure if we like went with a fine Toth comb and really looked at looked through the movie there would be other issues but but on the whole it is it feels like one of the most scientifically accurate space exploration movies I've ever seen kudos to everybody involved if you want to support the work we do at Universe today consider joining our patreon club your support lets us have a minimum of ads and no sponsorship messages patrons get no ads on university.com for Life want the extra parts of the live stream that aren't in this edited version you can sign up for a special Patron only podcast feed get the overtime segments as well as other special behind the scenes episodes including our monthly Patron only question show thanks to everyone who has already already subscribed and welcome to the recent newcomers Bruce Morland Bob raml Bart flare John Bush schuma Joseph kogan Dr Martin Bermudez vaultz tryber Cal Trix and Janine Anderson join the club at patreon.com univers today Kim Baron do you think Von noyman probes are doable with our current technology no not with our current technology we are not capable of making self-replicating robot probes capable of traveling Interstellar distances and when they arrive at their destination making more copies of themselves like that is still deep science fiction compared to what we capable of but I don't think it's going to be a long time the rate of technological advancement is exponential and it is surprising how quickly things that felt like science fiction oh I don't know you know smartphones right like that's that's crazy when you think about what happened in Star Trek where they had their communicators and then they had some version of it you know they had the little com badges in Star Trek the Next Generation I mean we could have those now if we want it I guess that's what people's watches are but but we have like the speed technology advances and you're seeing with waterers language models with uh machine learning with new kinds of robots with 3D manufacturing with 3 Manufacturing in space um that we're going to eventually get to some kind of minimum viable self-replicating robot within the solar system where you have a little Factory it goes out it builds a little more robots and they move to all of the worlds inside the solar system and I'd say we are like conservatively 50 years away from that but maybe sooner like maybe that's a 20 year 30-year thing for us to be able to do that big trick is going to be setting your spacecraft at Interstellar distances and that's where we're going to need big advances in technology to be able to pull that off in our lifetime but computers don't care how long it takes so maybe if it takes a thousand years for them to get to another star system we still uh will be colonizing every star system in the entire galaxy and I would love to get the reports right like wouldn't that be amazing like when I think about when you play some game like Stellaris or whatever you look through all of the planets all of the Star systems in your Empire and you and you can look at their world and the populations all kind stuff as those Von noyman Pro are heading out and going to different star systems and self-replicating and they're going to be sending all this data home and we're going to be building this giant database that is a picture of every world in the entire Milky Way and eventually some future version of us 10 million years down the road will have a database of every single star system in the entire Milky Way every planet and they'll be able to just like look you know virtually um sightsee these different worlds and we can't do that right now and then does make me feel a little sad that we are too early in on this process yes you know we have the internet we have video games we have technology we have this cool stuff but but we're not going to be around for that next one unless I get my robot body of course Corey K can you speak to the shape of the known universe is it like the plane of our solar system how can an object that is expanding in all directions not be a sphere so the miscommunication the misunderstanding out there is that the actual universe is a sphere and it's not the observable universe is a sphere in other words the region around you that you can see is a sphere and that's only because light takes time to travel and when you look in all directions you're seeing the light that has taken 13.8 billion years to get to you and that I have a different observable universe than you do and yes when we look out into that observable universe then everything appears to be moving away from us but if you go to any place in the universe everything's moving away from everything else and so it's really important to distinguish between what is the observable universe the universe that we can see and the analogy that I always use is imagine you're staying in fog you've got like a bright light with you you see a sphere of fog around you and yet if you move over to another place you see a different sphere of fog around you that is your observable fog averse and so it's the same thing in the observable universe except instead of it being like fog that you can't see through it's time that light has taken to reach your eyes what is the real shape and size of the universe well one possibilities that it's infinite goes on forever it's possible that our observable universe is just this tiny little ball inside this infinite universe that goes off in all directions the other possibility is that it's finite but that it wraps and so if you go in One Direction you return to your starting point any way you want to go um but so like what shape is that you know is it a is it it's not a sphere because we know that the curvature of the universe doesn't permit that so it might be like a Taurus like a donut the universe is a big donut you go follow any path on a donut and you return to your starting point maybe it's a cube you just follow any path on a cube and you return to your starting point internet Doge if aliens looked at Earth with a telescope and the light took over 65 million years would they see dinosaurs yes they' see dinosaurs they'd have have a very good telescope though Carmen Williams do you expect the next Starship launch to go into orbit I mean I don't like to speculate on this kind of thing but it feels like that will be the next objective is for Starship to actually accomplished the goal of super heavy returning and landing in the ocean and Starship returning and Landing off the coast of Hawaii that is the next big Challenge and so if they have more explosions and they don't pull that off then that is a failure right that is the failure but if they pull that off then the next step is to try and actually go orbital and test out a re-entry but it might be like SpaceX some sometimes has a tendency to skip testing steps so so if they reach a problem and you know their say their rocket tears itself apart and destroys their Landing Pad um instead of trying to recreate that exact test and try to make sure they get it right they will sometimes just skip to the next test because I don't know they learned whatever they felt they needed to learn and so it could very well be that instead of them trying to recreate the mission that just happened they're G to go straight to we're g to try to go orbital and and then reenter the earth atmosphere or we're going to try and land super heavy somewhere safe so I do I like their chances you know I don't know I mean like how can we know in advance I mean it's just that it's difficult it's complicated it's expensive there's so many ways this can go wrong uh we're just all going to have to wait and see together Liam what and when is the next big Space Telescope scheduled to launch so there's two upcoming space telescopes that I'm watching one is of course the Nancy Grace Roman telescope and this is the Hubble class telescope was this was one of those telescopes that was given to NASA by the national ronance office they had two leftover Hubble class spacecraft that they didn't know what to do with and so they're like you know we've got these kicking around these two Hubble class space telescopes aren't good enough for the kind of Earth observation that we need to do we were just going to throw them in the trash do you want them and Nas was like yes we'll take them one is already been repurposed but the other one is going to become the NC Grace Roman telescope so it'll be the same size as the hobble Space Telescope but it has a really wide field of view and so it's going to be able to image a big chunk of the sky and it job is to help us understand the nature of dark matter and dark energy to map the gravitational lensing at the largest scales but it's also going to be equipped with this really powerful coronograph the thing that allows you to block the light from the Star to be able to see the faint planets that are nearby and it will be powerful enough to detect Jupiter sized worlds orbiting around sunlike Stars which is outside the capability of any Chon like web can't do this but Nan G Roman will and this is going to be the precursor to the upcoming habitable worlds Observatory that'll launch in the 2040s the other telescope that I'm really excited about is called aeriel and it launches in 2028 and this is from the European Space Agency and this is a telescope that's designed to categorize the atmospheres of extrasolar planets so it's not going to be discovering new extrasolar planets but for the at the time that it launches there will be more than probably 10,000 planets known and it will be attempting to analyze the atmospheres of as many of those worlds as possible and so while web is able to do this and we're getting reports every couple of weeks of new exoplanets that web has been looking at Ariel is designed only to analyze exoplanets it's probably going to be able to look at a thousand exoplanet atmospheres throughout its lifetime and so we'll get a much better sense of what is the total amount of exoplanet atmospheres you know what is the you know how many are contain these chemicals and how many contain those chemicals and so I'm really excited and also on board with the aerial space telescope is going to be the comet Interceptor and this is going to be the tiny spacecraft well not tiny but this is the spacecraft that's going to attempt to intercept an inter Stellar object it's going to loiter at L2 weit with Gaia and web and Ariel and then when some UA mua 2 is making its way through the solar system it's going to fire its engines and attempt an intercept to fly past and gather a bunch of date as it goes by and we'll get these first close-up images of a comet or asteroid that came from another solar system so those are the two big telescopes that I'm excited about but there's a lot that are in the pipeline there's another one that's coming out of China this the Chinese are building their own kind of Hubble class Space Telescope and their original plan was to bolt it on to the Chinese space station and they realize that you know with all the shaking and all of that it's not a great idea and so they're going to have it fly in formation with the space station and so whenever they need to do upgrades and improvements to it they'll just dock it to the station they'll space walk out to it swap out the parts and then they'll push it back out into space and have it keep doing its work so there's a lot of really interesting missions that are coming up Negron do we know anything about what NASA thinks about spacex's recent launch I haven't heard like any specific announcement of it yet but I'm sure they're thrilled Artemis 3 should be going to the Moon in 2025 maybe 2026 it's going to be carrying astronauts to the surface of the Moon and their Lander is going to be a SpaceX Starship uh the human Landing system and not just any SpaceX Starship but one that is custom designed for landing on the moon one that has been refueled in Earth orbit from a special tanker spacecraft that it's going to take probably High Teens of launches to refuel this spacecraft to be able to make this so there's a lot of checks that need to be checked off to be able to get to the point that Artemis when the Artemis astronauts arrive at the Moon they have a Lander and so every piece of progress that SpaceX can pull off to move them towards that goal like that is the deadline right now the whole crushing deadline for SpaceX right now is to get the human Landing system in place and tested before the emis astronauts show up because if it's delayed then the entire Artemis mission is going to have to wait for that to happen and there's a lot of money riding on this I mean they had a huge contract from NASA to be able to provide the landing system for Artemis 3 and so I'm sure NASA is like come on come on hurry up hurry up get it done get it done let's see some successful tests and so I think people always feel like the government is holding back SpaceX but I don't think it could be further from the truth the government needs is relying on SpaceX to get this job done to get Starship flying and there's a lot of jobs and a lot of money and a lot of reputations are on the line and you know any conversations that are happening with the FAA between SpaceX and NASA and the government right are all happening to try and get this process going so that there can be a Lander for the emis 3 astronauts when they arrive I'm going to talk about the Martian some more as well as some other books but first I'd like to thank our patrons thanks to douge Stewart Steven kosaki David Richards Mark Anis Joel yansy Antonio lyara Dustin C flad shiin Monto George David Gilton Andre gross Jeremy murn Josh Schultz and Jordan Young Who support us at the master of the universe level and all of our other supporters on patreon I was talking about the Martian in the episode and last time the Martian came up I like decided okay that's it I'm going to go and watch the Martian again and just binge watched it with my wife and it totally stands up and I highly recommend that if you haven't seen it you definitely should watch it like there's no chance that you haven't seen it but if you haven't but if you haven't read it I really recommend that you read the Martian it is one of the best sort of most entertaining s fiction books I've read in recent years I read it just consumed it over the course of like a day I gave it to my father he read it consumed it over the course of a day I gave it to my son my wife uh all of them read it and really loved the book and so you know if you enjoyed the movie I promise you the book is great and then if you want another book by Andy Weir I highly recommend project Hail Mary which is it's about a sort of existential threat to Earth and Humanity sends a spacecraft to try and solve the problem and uh Shenanigans ensue and it's great like same thing like if you enjoyed like like it is Mark Watney again just like with a different character name but essentially it's the same character but uh but a different scenario and different problems to overcome and very creative very imaginative uh Alien that he interacts with uh I really the book so if you're looking for two books if you just want no end of fun the Martian and project hell Mar by Andy wear all right we'll see you next week

Channel: Fraser Cain

Views: 65,795

Keywords: universe today, fraser cain, space, astronomy

Id: jnlSweaP2D0

Length: 34min 39sec (2079 seconds)

Published: Tue Dec 05 2023