Latest / Made of Stars / SpaceX Prepares Another Starship Test Launch
Transcript
- 0:00Warning. The following podcast contains an entertaining look at astronomy, physics, and
- 0:04space news throughout the known universe. Listeners have been known to learn about astronomical
- 0:08phenomenon the scientific method, and expanded vocabulary to include terms like quasar, asterism
- 0:14and uranus. Listen, that's your own risk. Go ahead. We're made
- 0:23of stars, made them stars may when made us stars, you could be
- 0:34from high they would New Mexico maas where stars when we are made of stars.
- 0:55I'm Wes Carol, joined by my good friend doctor Sean cruising from Columbus
- 0:59State Universe citi's Coca Cola Space Science Center. Hey Sean, good morning,
- 1:03Wes. Good to be here again this morning. We have a major story
- 1:08on the CUSP. We do, and it's something we've been talking about for
- 1:12quite some time. A week ago, we were talking about the fact that
- 1:17it seemed like Elon Musk and SpaceX were really putting the screws to the Fish
- 1:25and Wildlife and the FAA at one point and trying to get another launch approved
- 1:33for the super heavy Starship another test flight. We know what happened last time.
- 1:40It feels like the stakes are higher this time. I mean there's just
- 1:42that palpable feeling that there's a lot more going on here. Now we know,
- 1:48we hope at least that they learned from the first launch that did not
- 1:53go I mean, it was considered successful to them, right, I mean,
- 1:57they did what they wanted to do. The problem is is they also
- 2:01did several things they didn't necessarily want to do, or that fish and wildlife
- 2:07and environmental agencies and people who have property in the nearby area would not want
- 2:15them to do. So now that they've learned things, now that they've put
- 2:19some precautions in place, tomorrow could be the day they're scheduled to launch and
- 2:24give another test flight. So what's the latest on the Starship? Yeah,
- 2:30not to mention in that list you were going through there, the Federal Aviation
- 2:34Administration, Yeah, not very happy with the performance, but I would imagine
- 2:39But I would imagine though, that in the course of human events, when
- 2:44something like a rocket gets launched, I would imagine the FAA's toes gets stepped
- 2:50on much more frequently than fish and wildlife. That's just that's why I kind
- 2:55of left them off, because I assume they're probably like the like network sensors
- 3:00on TV they're always kind of looming in nearby, and like, did he
- 3:05just say that? I don't think we can use that word. Let's look
- 3:07it up, you know, those sorts of things. I feel like the
- 3:08FAA is always has an eye on it, and I assume you got environmental
- 3:14agencies keeping an eye on it as well. But I mean, they didn't
- 3:17just kind of like, you know, step in a puddle. They kind
- 3:22of did a cannonball into a lake, I guess. So, yeah,
- 3:25it's unclear whether any fish were actually hurt during the last launch. It's unclear
- 3:32if any fish were harmed. But anyway, yes, well, at the
- 3:39very least it may be made it a little harder for the fish to breathe.
- 3:43How about that? Is that Is that a fair I think that could
- 3:46have been at least part of the problem. All right, let's let's be
- 3:49serious about this. So the Federal Aviation Administration after the last disastrous launch,
- 3:55successful, disastrous, disastrous success was another man's disaster, my friend, That's
- 4:01all I'm gonna say. Yep, you are not wrong that SpaceX put out
- 4:06the uh self congratulatory communications and said, wow, what a fantastic success,
- 4:13and and you know, objectively, we have to say, they launched the
- 4:17most powerful rocket in the history of humanity and it went up. Yep.
- 4:24Now, it didn't necessarily go according to plan, didn't go according to script.
- 4:30Several things happened that maybe were unanticipated or at least only partly anticipated,
- 4:35but the thing went into the sky. So okay. That's where SpaceX kind
- 4:41of drew their line and said, well, hey, yeah, there was
- 4:43a few things that didn't go quite like we thought, but we're gonna call
- 4:46this success a success. Now. One of the reasons it didn't get to
- 4:50its projected orbit is because when the thing fired on this launch pad, which
- 4:58was not protected by a sound suppression system where you dump the whole bunches of
- 5:02water over the launch pad to mitigate the acoustic waves generated by the loud rocket
- 5:09engines. NASA learned this long ago, by the way, which is why
- 5:13they had done that for almost the entirety of the Space Shuttle program. All
- 5:16right, So anyway, so when you go ahead and launch the world's most
- 5:20powerful rocket and you don't put in lessons learned by NASA, including a sound
- 5:26suppression system, and you obliterate your launch pad and scatter it over a very
- 5:30large area, yeah, then fish and wildlife's going to get involved, and
- 5:36you know there's gonna be some complications. But yet the rocket went up,
- 5:43so it's at least a partial success, and we have to kind of that
- 5:46kind of tip our hats to SpaceX to say, all right, some things
- 5:50to be learned here, but okay, well and fully in their defense when
- 5:56it launched and they said, hey, look what we did. We did
- 5:59so celebrate it with them. We were like, wow, what an accomplishment.
- 6:02And then as more information started to come in, we went, oh,
- 6:06so we were actually here that day at the Space Science Center with a
- 6:11whole group of students who had gathered around the very large monitor out in our
- 6:15exhibit gallery, and we're watching that launch live and they kind of showed this
- 6:19shot from the ground up toward the massive number of rocket engines, and it
- 6:27was pretty clear that not all the engines were lit. In other words,
- 6:31not all those engines were firing. And it's because the concussion of those very
- 6:38strong sound waves on that brittal launchpad blew materials from the launch pad back up
- 6:44at the engines and knocked them out, and that's why they didn't make it
- 6:47to the projected orbit in the first place. So yeah, it was more
- 6:51than just a little bit of a miscalculation. It actually prevented the flight from
- 6:56achieving its goals. And so I guess maybe that was number one and one
- 7:02A on the list of literally one thousand upgrades that had to be made to
- 7:10SpaceX Starship in order to pass FAA certifications. These are mandated corrections by FAA
- 7:18along with just improvements that SpaceX themselves knew they needed to make to keep that
- 7:23thing from happening again. Oh wait now, so now they've made it.
- 7:27Now they're ready to launch. So that's the short story. I know you
- 7:30don't have the checklist in front of you, but a thousand upgrades, Like,
- 7:34is this something that they said, hey, we've upgraded a thousand things,
- 7:39or do we think that this is a over a thousand things or do
- 7:42we think this is a list the FAA said, here's a thousand things that
- 7:46you need to tweak. Because if it's coming from SpaceX, maybe they just
- 7:50painted a different color and they go, that's an upgrade, all right.
- 7:54I mean, I'm just wondering, were there really over a thousand individual problems
- 7:59that need to be resolved? So we do know some of this. So
- 8:03the FAA themselves only mandated sixty three corrections. Ah, okay, that still
- 8:11seems like a big number, right, Hey, there's only sixty three things
- 8:16wrong with your rocket. I mean that's still a fairly large number. And
- 8:20it's not just on the rocket, it's on the launch pad, it's on
- 8:20the whole process. Right, So we understand that, but let's remember less
- 8:24it's an important, important time to remind all of our listeners how SpaceX does
- 8:30things. They participate in a process which they refer to as agile development,
- 8:35which means we're not going to figure everything out on the chalkboard, because you
- 8:41never figure everything out on the chalkboard anyway, even when you try to the
- 8:45nth degree to figure out every detail on the chalkboard or in simulations is a
- 8:50better, you know, kind of twenty twenty three thing to say, there
- 8:54are still problems that occur. So what SpaceX says is, well, we're
- 8:58just going to get it to some of a more primitive state. We're gonna
- 9:01go ahead and try it, and then we're gonna figure out the thousand problems
- 9:05that we need to fix from it, and that way we can be moving
- 9:11in real time towards solutions, rather than arguing about parameters in some kind of
- 9:16a simulation in the back room. We actually see what happens. We blow
- 9:20it up, we fixed the problems, We blow it up again, fix
- 9:22the problems, blow it up again. You and I have discussed on this
- 9:26podcast how that seems similar to the Star Trek Next Generation characters of the Borg.
- 9:33It's the way the Boorg did things. They just kind of went into
- 9:35battle and they saw what you did, and as soon as you did something,
- 9:37they modified on the fly to where you couldn't do that thing again,
- 9:41and then pretty soon they're defeating you because they made all the necessary modifications.
- 9:45I'm not saying Elon Musk is in the Borg. I'm not saying that.
- 9:50I'm stopping short of that, but I am saying that perhaps as a younger
- 9:54person, he watched Star Trek the Next Generation and said, you know,
- 9:56if I ever have a space company, we're gonna do things like a Borg
- 10:00does it, because they are very efficient in their engineering processes. We cannot
- 10:03confirm he's in the Borg. We also cannot confirm that he was a fan
- 10:07of the tennis great Bjorn Borg either. Neither of those can although he does
- 10:13have that one T shirt that says locutest of musk. It seems odd.
- 10:20It does seem odd. So I mean, in a perfect world, they're
- 10:24gonna launch this thing tomorrow and it's gonna go up, and everything's gonna go
- 10:30exactly the way it's supposed to. We know, based on what you just
- 10:35said, there's always a possibility that it's not gonna go exactly the way they
- 10:39want it to. Uh. And I would assume as long as they make
- 10:43a little bit of progress, they're successfully carrying out this strategy that you're talking
- 10:48about. If something happens and it doesn't actually lift off of the launch pad,
- 10:54then I guess then they would call it a failure at that point.
- 10:58Well, or is it just a next step in the agile development That's true,
- 11:01maybe they learned something else about it, right exactly. So again,
- 11:05it's important to keep in mind that that core philosophy of engineering that is used
- 11:11at SpaceX. And let me just say, let me just say, they
- 11:16have been enormously successful, Wes. They have been able to do these things
- 11:20in a way that made things that seemed like science fiction twenty years ago happening
- 11:26right in front of our eyes. Including like twin boosters coming back down and
- 11:28landing simultaneously on launch pads from Falcon Heavy, including a Tesla roadster in orbit
- 11:35around the Sun, traveling out by the orbit of Mars, all of these
- 11:39things. They've been enormously successful in creating a platform to carry astronauts back and
- 11:46forth to the International Space Station, as well as supplies, cargo, all
- 11:48that kind of stuff. They are now building the most powerful rocket ever,
- 11:56including more powerful than the mighty Saturn five that took astronauts to the Moon,
- 12:03including more powerful than the N one rocket that the Soviet Union tried to launch
- 12:09for a number of years during the Moon Race, and they never made it
- 12:13work. It exploded on the launchpad and killed their director of their space program.
- 12:20You know, this is these are all things. This is something that
- 12:22governments could not do just a handful of years ago, and SpaceX is doing
- 12:28it. So we make fun, we tease about agile development that process,
- 12:35but yet it seems to be enormously successful. And I don't know if the
- 12:39agile development their way through the you know FAA and their review and you know,
- 12:45fish and wildlife or whatever. But they did send Bill Gerstenmeyer to the
- 12:48Hill Kirsty Gersty went to the hill and spoke with the folks up there and
- 12:54said, y'all are getting in our way. We're ready to launch this thing,
- 12:58and you're holding us up with government red tape, and you are preventing
- 13:03the acceleration of the exploration and usage of space for economic gain. So get
- 13:09out of the way. If you don't know who Bill Gerstenmeier is, by
- 13:11the way, ladies and gentlemen, he's the former head of human Spaceflight for
- 13:16NASA, so he's a really well known person in the space industry and in
- 13:20governmental circles as well. So all of this stuff is happening, and now
- 13:24we are, as we record the show, less than twenty hours away from
- 13:28a potential launch of the most powerful rocket humans have ever built. So about
- 13:35eight am on Friday morning, seventeenth of November. In case you're listening in
- 13:39the as we like to say, future, future, future, So if
- 13:45it goes well, you'll know we were talking about it here it was about
- 13:48to happen. So the best case scenario is that they've improved on a lot
- 13:54of the problems. I mean, well, best case I guess would be
- 13:56that it's a completely successful one and they want to send it up up around
- 14:01the planet and then splash down in the Pacific, what near Hawaii, that's
- 14:05right, And so so it's going to make you know, a loop around
- 14:09the you know, the planet and demonstrate the fact that they can actually launch
- 14:15this payload into a successful orbit. And that's the big thing. Remember,
- 14:18folks, there's Starship has two components. It has a vehicle that's also called
- 14:22Starship, and it has the Falcon super Heavy booster, which is where all
- 14:28the rocket engines have to work. But the vehicle called Starship that sits atop
- 14:33that booster is NASA's ride to the Moon in a sense. It's it's the
- 14:39vehicle that the NASA vehicles will rendezvous with to go down to the lunar surface.
- 14:45SpaceX has already won that contract, and so them launching this vehicle is
- 14:50not just you know, a billionaire playing with toys. This is actually part
- 14:54of NASA's Artemis program. Right. They have to be able to launch Starship
- 14:58into a lunar orbit so that the Orion capsule can rendezvous in lunar orbit with
- 15:05the Starship, and the Starship takes astronauts back and forth from lunar orbit down
- 15:09to the surface of the Moon and back up to rendezvous with Oryon again.
- 15:13So this is again not just a frivolous project. This is part of the
- 15:18Artemis program being demonstrated. Okay, So it's also a means of getting more
- 15:24payload, more cargo into space, which is also important, and I guess
- 15:28that'll segue into our next story, because now the White House laying out possible
- 15:35rules for private space stations and other space based activities. So you're gonna need
- 15:39a vehicle that can take you know, large amounts of cargo and things into
- 15:45space so that they can actually build more of these, not just the bounce
- 15:48house space stations though, the actual ones that are gonna have actual walls to
- 15:54them and stuff. Not that a bounce house isn't a wall, but I
- 15:58just think about the bounce house, you know, it sounded that we talked
- 16:02about the bounce houses what five six years ago the first time we talked about
- 16:04that as a as a possible hotel, and then not long after that,
- 16:10we had all these stories about, oh, this was a bounce house at
- 16:12a birthday party, and then augusta wind blew him six and a half blocks
- 16:17up the road, and I was like this is not This doesn't seem like
- 16:19the best case scenario for astronauts or or just people going to a space hotel.
- 16:26I mean, fortunately, Low Earth orbit is almost entirely free of giant
- 16:32wind guss. That's true, because there's no atmosphere, so they have that
- 16:37going for this. That's true. But you know, I mean, there
- 16:40was a point where I don't think anybody really thought that those little bounce houses
- 16:44at the birthday parties were going to go flying through the air either. So
- 16:45we don't know, we don't know what's gonna happen. It's a reasonable point,
- 16:49well taken. I don't know if the space industry has looked at bounce
- 16:52houses at birthday party four because they know about the wind. But what else
- 16:57is out there? I mean, how many times? How many times is
- 17:00a tiny little piece of space debris gonna cause an ammonia problem on the International
- 17:06Space Station? One of those hitting a bounce house. It could fly well,
- 17:10it's not gonna fly around like a balloon, but you get my point.
- 17:11It wouldn't be good. I mean, you could have a cosmic ray
- 17:15with an over inflated self importance, right, yeah, cause something like that
- 17:19could I don't know anyway, So what WESS is referring to, by the
- 17:22way, ladies and gentlemen, it was a company called Bigelow Aerospace who had
- 17:26a contract with NASA to install an inflatable module onto the International Space Station and
- 17:33blow it up and test it. They did some of that work, but
- 17:37it never really inflated, if you know what I'm saying. Yeah, So,
- 17:42anyway, so that company has since gone bankrupt. However, there are
- 17:48a variety of other commercial space companies and they want to put people in space,
- 17:51they want to send lots of tourists to space, they want to do
- 17:52economic activities on their own without NASA and the governments, well they're behind.
- 17:59And then this happens in lots of industries where the government goes, wait,
- 18:03I'm sorry, who's overseeing that, Who's making sure all of that's good to
- 18:07go? Oh, well, our regulatory agencies have not caught up with that
- 18:11particular activity yet. Therefore, we're going to pass various pieces of legislation which
- 18:17assign oversight to activities to various organizations within the federal government. So that's what's
- 18:25happening right now. There is legislation moving through the halls of Congress, to
- 18:30better oversee a variety of space activities and mostly split up the oversight to two
- 18:37departments within the executive branch of the federal government, the US Department of Transportation
- 18:42and the US Department of Commerce. And the bill which is being proposed by
- 18:48the National Space Council, which is an oversight group for the it's an advisory
- 18:53group really for the space industry. But it has been chaired by vice presidents
- 18:59all the way back to the Trump administration. Doesn't feel that long ago anyway.
- 19:03Mike Pence's job was to oversee the National Space Council. That was the
- 19:06Trump administration that brought that back. But then, I mean, you hand
- 19:08off the baton, right, So it's Vice President Kamala Harris who is now
- 19:14seeing overseeing the National Space Council. And so it's Vice President Kamala Harris who's
- 19:19leading the effort along with the Space Council to increase oversight to a variety of
- 19:25activities in space. What kind of things are we talking about, Well,
- 19:29space stations, commercial ones, right assembly and manufacturing in microgravity, the removal
- 19:37of space debris and broken down satellites which are definitely a hazard. All of
- 19:45these activities are now going to be overseen if this legislation passes by either the
- 19:49Department of Transportation or the Department of Commerce. If human beings are going up,
- 19:56it's going to be overseen by the Department of Transportation, and it's going
- 20:00to be their job to put in new regulations to protect all of these unwitting
- 20:04people who think that there's really no risk in going to outer space. Then
- 20:11if it does not include human beings on board, if it's simply robotic economic
- 20:17activity, that will be overseen by the Department of Commerce, the US Department
- 20:22of Commerce, and that will include the things like manufacturing and satellites and such.
- 20:29So it'll be interesting to see number one, if this legislation gets passed,
- 20:33and number two, how far reaching it is, because early discussions about
- 20:37this legislation not only regulate activity in low Earth orbit orbit around Earth, but
- 20:45also out to the Moon, and early reports indicate that they have language in
- 20:52this document that also says and other celestial bodies like that covers literally the rest
- 21:02of the universe. It does doesn't leave it to the federal government to think
- 21:08that their reach extends to the outer reaches of the entire universetain because other celestial
- 21:17bodies would fall in in some tidy manner into that category. So does it
- 21:22have the word multiverse anywhere in it too, because I would think they might
- 21:25consider that as a I mean, I'm not sure why they didn't include that.
- 21:27They might as well have probably in another universe, like in what part
- 21:33of the multiverse they've already claimed it. Maybe that's what happened. I tried
- 21:38to see any kind of reaction from Bill Gerstenmeyer on all this new uh oversight,
- 21:45shall we say, by the federal government. I didn't see any quotes
- 21:47out there by gersty but they're going to be coming, so I can't wait
- 21:51to hear what what you know, he and others have to say about the
- 21:55new legislation being proposed by the National Space Council. All right, let's talk
- 22:00beetlejuice. We talked about beetlejuice around Halloween, which was appropriate, that was
- 22:04fun. And we've been talking about beetlejuice in some capacity now for quite a
- 22:10while because there's been you know, potential activity, but something different now with
- 22:15beetlejuice to talk about. Let's be clear on our listeners, our regular listeners
- 22:18already know this. We get Beetlejuice into the conversation. Any chance we get,
- 22:23any day we get to come on and do a Beetle Juice story just
- 22:27makes me happy. In today's the day, friends, because next month,
- 22:32in December, on the twelfth of December, there's an asteroid, a lonely
- 22:36little asteroid. It's even pretty far down in the catalog. It's number three
- 22:41nineteen, it's three to nineteen Leona, and it's a lonely asteroid out there
- 22:47in the main asteroid belt. But it's going to do something rather remarkable on
- 22:51December twelfth, from the vintage point of the surface of the Earth, that
- 22:56little asteroid's going to pass in just the right place to block out one of
- 23:02the greatest stars in all of the nighttime sky, the upper right shoulder of
- 23:07the constellation of Oriyan the Hunter, the super massive red giant star red super
- 23:12giant star, Beetle Juice. And when one celestial body blocks out another,
- 23:19that's called an occultation. Now, if you think that is just some strange
- 23:22word that has to do with Halloween or whatever, why do we use that
- 23:26word in astronomy. Literally, the word occult means to hide, So it's
- 23:33a hiding that's taking place. The asteroid will pass in just the right position
- 23:37to hide the light from Beetle Juice for a very short period of time from
- 23:41the surface of the Earth. But here's the interesting thing. Astronomers, well,
- 23:45they're clever people, and they figure out during these kinds of events how
- 23:48to use these events to measure things. And as that asteroid passes over the
- 23:56disk surface of the star Beetle Juice for microseconds, it will reveal different structures
- 24:03within the atmosphere of Beetle Juice. And if some clever astronomers can take data
- 24:10at a rapid enough pace, they can put together a time sequence of this
- 24:14hiding of that star and come up with some measurements of surface features on the
- 24:21star itself, sunspot groups, or complications in the magnetic field of that star
- 24:27Beetlejuice, which might give us more indication of what's taking place inside the star.
- 24:33And then it feeds data to all the theoretical astrophysicists who can model what
- 24:40may be happening to the star Beetlejuice. Because again, if you're a regular
- 24:42listener, you know that that star is about ready to go supernova, at
- 24:48least on the timescale of the lifetime of stars, which could be tomorrow or
- 24:53it could be twenty thousand years from now. But that's again on a star
- 24:59line lifescale, that's a relatively short period of time, and so what's happening
- 25:04on the surface might give us some very important clues as to when, on
- 25:10that rather broad timescale, Beetlejuice might actually be approaching an actual explosion. Is
- 25:15it soon? Is it still relatively far off compared to our lifetimes. We
- 25:19don't know, But this occultation on December twelfth by three nineteen Leona might give
- 25:26us clues about the physics taking place inside the massive star Beetlejuice. Coming up
- 25:32after a quick break. The Red planet has one spacecraft seeing green. We'll
- 25:37talk about that next planets. Okay, so it's known as the Red planet,
- 26:03but it sometimes glows green. What's this story, Sean, Well,
- 26:08we didn't really know that until some brand new data came in from a really
- 26:12cool spaceship called the Exo Mars from the European Space Agency. And the Exo
- 26:19Mars has an instrument on board called the Trace Gas Orbiter, so it's the
- 26:23Exo Mars Trace Gas Orbiter TGO. So this instrument aboard the European Space Agency
- 26:30vehicle was able to detect something very cool, which is this. Let me
- 26:36back up right now and tell you a story. It turns out that when
- 26:38the Sun goes down, the Earth's air actually glows at night. And I
- 26:45don't mean just the Aurora borealis that happens when the Sun gets extra grumpy.
- 26:48I mean every night. Every night, there's something called air glow. The
- 26:53air absorbs energy from the Sun during the day and it re emits some of
- 26:59that energy night and so there is actual luminescence coming from the atmosphere of the
- 27:04Earth in the evening hours from this process called air glow. Well, for
- 27:10the very first time, the EXO Mars Trace Guess orbiter has discovered air glow
- 27:18at night, which we call night glow, on the red planet Mars.
- 27:23So this spectrum of light has been observed for the very first time glowing air
- 27:29on Mars not caused by interaction with solar activity. And it's very beautiful and
- 27:37very interesting because it's glowing ready, ready, green green glow from the red
- 27:44planet. That seems unusual. Why would that happen? Let me just ask
- 27:48this because I just want to make sure that this has already been ruled out,
- 27:52and I understand, we know. My role on this is just to
- 27:55ask the questions that the listener at home might want to ask, and I'll
- 28:00leave the actual science to the scientists. That's your role. Are we sure
- 28:03that the person who was looking at this was it colorblind? Is there a
- 28:08possibility that that's what happened and it's not actually green, it's red? I
- 28:14mean I have I can't neither confirm nor deny the color blindness status of the
- 28:21individuals examining these data coming from the Exo Mars trace guess order. But what
- 28:26I can do is talk like a scientist and say, we can actually measure
- 28:32the wavelengths with numbers, so therefore we don't have to actually see the colors.
- 28:37We can just see the length of the wavelengths of light coming in and
- 28:41we know what part of the color spectrum they fall in without having to either
- 28:47be positive or negative on the color blindness issue. So therefore we quantify things.
- 28:52That's what we do in science. All right, smart guy, I
- 28:55got you. I thought maybe rods and cones played a part, but I
- 28:57guess not. I mean, it's not that they don't they play a role
- 29:03somewhere along the line, and whether or not you can perceive these color differences
- 29:07coming from the Martian atmosphere, However, what's really taking place is that two
- 29:11oxygen atoms are recombining into an oxygen molecule and giving up a very specific amount
- 29:18of energy, and that very specific amount of energy always translates into a wavelength
- 29:25of electromagnetic radiation being emitted that falls squarely in what we would refer to as
- 29:30the green portion of the visible light spectrum. So it's a number that we
- 29:36see, and that number correlates with a color that if you don't have red
- 29:40green color blindness, you can detect with your own eye. So there's how
- 29:44that all ties in. So but the cool thing is this, not only
- 29:47do they know what reaction is causing this very specific glow in the atmosphere of
- 29:52Mars, they also know the altitude, and that piece is very different than
- 29:56on the Earth. The Earth puts off this same green glow in its atmosphere,
- 30:02but it's from a much different altitude, and that's because the structure of
- 30:06Earth's atmosphere, being far more dense than Mars, is very different from the
- 30:11Martian atmosphere. And so the altitude that this occurs on Mars is at thirty
- 30:15one miles, a very specific amount of altitude, and that does something for
- 30:22both astronomers and engineers. It gives us a really good idea of the structure
- 30:27of the Martian atmosphere and where it is more dense and where it is less
- 30:32dense. So this color indicator coming from the glowing night glow of the Martian
- 30:37atmosphere is actually helping scientists and engineers understand the Martian atmosphere better so that they
- 30:44can do a couple of things. Well, the natural scientists, they want
- 30:47to model the Martian atmosphere and figure out more about its chemical properties than otherwise.
- 30:52But engineers just want to know can they drop a spaceship throat without burning
- 30:56up? Or how big does the parachute have to be in order to keep
- 31:00this thing from hitting the ground at a certain speed. And so these new
- 31:03pieces of data, these new pieces of evidence coming from this nightglow are helping
- 31:08better understand the structure of the Martian atmosphere for both those interested in modeling the
- 31:15atmosphere and those wanting to put payloads through the atmosphere or figure out how much
- 31:21Martian atmospheric drag there is on satellites or other kinds of payload concerns traveling through
- 31:27the Martian atmosphere. So important again, both for theoretical scientists and good old
- 31:33practical engineers trying to get payloads down to the service of Mars. Twenty years
- 31:37of friendship, about thirteen years of doing this version of the show on radio.
- 31:42This is our one hundred and fiftieth podcast in this format. Here,
- 31:48first time I've ever called you a smart guy. I mean, and I'm
- 31:55not even sure that fits all that well. I'll be honest, I'm just
- 31:57a guy that spent too much time in school. I guess you could think
- 32:00I was smart. I don't know, but I do. I do play
- 32:05that role here on the Show's right, So thank you for referring to me
- 32:09with that moniker. Maybe it helps people think I'm actually smart. I'll be
- 32:13inquisitive guy, you'd be smart guy, And I think we got something going
- 32:15for us. All right, let's talk about the Cocola Space Science Center,
- 32:20because you guys shift into Thanksgiving week mode next week. We are. Yeah,
- 32:23we're coming up on the holidays, and there's lots of things that change.
- 32:27Here's The first thing I would encourage folks to do simply follow us on
- 32:30Facebook because that's where a lot of real time information about our programming and other
- 32:36things is coming out right there on Facebook. Also, visit us on our
- 32:39website because we update our holiday hours there regularly. But the quick version of
- 32:45the story is we are going to be open for some period of time during
- 32:47the week of Thanksgiving. We're gonna be opening up Monday, Tuesday, and
- 32:52Wednesday of that week, and then then we're gonna be closing down and spending
- 32:57some time with our family just like everybody else. So you know, we
- 33:00hope that you have a wonderful holiday and enjoy that time. But we will
- 33:06be closed the remainder of that week and we will not be opening up again
- 33:10until the Monday following Thanksgiving, which is November twenty seven, And we plan
- 33:17to do a show next week. That'll be a show one we'll see if
- 33:21we can work a smart guy into that show. Thank you for listening,
- 33:25and we'll do this again next week. Overhead Door Company of Columbus has all
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