Latest / Made of Stars / Saturn's Rings to Disappear in 2025!
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 expand to vocabulary to include terms like quasar,
- 0:12asterism and uranus. Listen, that's your own risk. Go ahead.
- 0:22When made of stars, made them stars, madies. When made of stars
- 0:33you could be from high they would new Mexicomas. Where are stars? When
- 0:54we are made of stars? Joined by my good friend doctor Sean Cruising from
- 0:59Columbus State University's Coca Cola Space Science Center. I'm Wes Carol, Hey Sean,
- 1:03Hey Wes. It's great to be here with you today. We have
- 1:07some great stories, some really weird and interesting things happening Thanksgiving Eve, our
- 1:14Thanksgiving edition of the show. I can't wait to be thankful tomorrow. By
- 1:19the way, yeah, I'm saying yes, I know exactly what you're saying.
- 1:23It's all about all about being thankful and then eating, you know,
- 1:29And if your football team's any good, maybe you know you might get to
- 1:30watch them play. If if they're one of the good teams, that's that's
- 1:34playing tomorrow, And if your team stinks, you know, we'll just say,
- 1:38hey, maybe we'll get a good pick in the draft. That's kind
- 1:41of where we're at. What if your team is just like mediocre, that's
- 1:46what mine is. Your team started stinking and then started to improve. So
- 1:49it's it's all mediocre right now. Though. We're not going to be good,
- 1:53but we're also not going to get good draft picks. Yeah, how
- 1:55does that help us? Yeah exactly. Well, let's jump for into SpaceX.
- 2:00We got a couple of SpaceX stories and they're all connected to the starship.
- 2:04But last time we talked, they were getting ready to launch, and
- 2:08we thought, well, all right, last Thursday we did the show and
- 2:13it was like, well, it's going to launch on Friday, and then
- 2:15it got pushed back to Saturday, and then all of a sudden sort of
- 2:19us, I mean, it's a successful launch. We discussed the possibility,
- 2:22and we've talked many times about the strategy that SpaceX uses when it comes to
- 2:28doing these kind of tests. So the first one was by all accounts,
- 2:32initially hailed a success, and that launch caused some complications. That's a diplomatic
- 2:39way to put it, some complications. They blew up the launch pad.
- 2:43They caused quite a mess in the neighboring communities and environmental areas, and they
- 2:49got put on hold for a while, and then they finally got around to
- 2:52launching a second time. And in spite of the fact that the first they
- 2:57got the rocket up in the air, they got it off the launch pad.
- 3:00It blew up the launch pad, but they got it up in the
- 3:01air, so they called it a success. And we anticipated that this time
- 3:05it might not be a complete success, but it would be something that they
- 3:08could still brag about. And hey, they're bragging about it. You have
- 3:14to think like SpaceX, which is they have a rapid iterative approach to engineering.
- 3:23They rapidly blow up rockets, and they rapidly figure out why, and
- 3:28then they rapidly make modifications and rapidly launch the next one. Now that's been
- 3:31the way they've been doing things for you know, the better part of twenty
- 3:36years. So the fact that they would do that with SpaceX Starship really isn't
- 3:42a surprise. It's just that the first explosion was big enough that they really
- 3:47made a mess of things in their neighborhood, and so that's what caused,
- 3:52you know, a substantial delay and finally they got permission from the FAA to
- 3:57fly. They launched again, as you say that on Saturday, they had
- 4:01by all accounts, a beautiful lift off and many many successful milestones. So
- 4:11the booster did what it was supposed to do. All thirty three of its
- 4:15engines powered and got that super heavy booster to lift the starship payload to where
- 4:24it needed to be. They separated just right, and then instead of coming
- 4:30back down and landing the heavy booster, the super heavy booster exploded in somewhat
- 4:35near proximity to the starship in somewhat of a surprising manner. I have to
- 4:41just say, the group of people I was watching with, we all said
- 4:44to each other, I don't think that was supposed to happen, as we
- 4:47watched a giant plume of you know, eruption take place. So anyway,
- 4:57the starship itself sailed away from that and was pushing on up toward it's nearly
- 5:04orbital trajectory, which was the plan for this mission, when then all of
- 5:09a sudden it had a rapid unscheduled destruction event for a RUD and so so
- 5:16it it rapidly disassembled, so rapidly, unexpected disassembly. I believe that's that's
- 5:24the term. So well, and a couple of things. So the first
- 5:27attempt at doing this that they had to detonate it themselves, right, that's
- 5:31correct. So this time this was not a self detonation. This is something
- 5:36well, I guess it was a self detonation. It wasn't done from the
- 5:40ground. This is something that happened while actually on the craft itself. Correct,
- 5:46and it appears that, you know, it was close to what they
- 5:51would have considered a successful launch trajectory. So they'll be looking into, now
- 5:57why, you know, what went wrong with both the vehicles, But hey,
- 6:01they hit milestones. They launched, they separated, the booster began its
- 6:08descent back to landing on the launchpad, the the Starship orbiter got into its
- 6:15flight trajectory, and then of course both of these vehicles then detonated. So
- 6:20they're gonna be looking into why all those things happened. But basically, what
- 6:24they did not do was blow up their own launch pad and litter the neighborhood
- 6:28with debris. That's that's the first step to being a better launch than last
- 6:31time. And they certainly did not do all of those things. So you
- 6:38know, it's it's going to be interesting to see because the FAA is investigating
- 6:44now right, So so it's an investigation even though it didn't damage the neighborhood
- 6:47in quite the same way, and cause, you know, an environmental study
- 6:51to be triggered because things blew up high in the air, they still went
- 6:55wrong. So you still have to tell the FAA or the Federal Aviation Administration.
- 7:00We still have to convince them if you're SpaceX, that you have things
- 7:03under control right, that you know what went wrong with your vehicles, why
- 7:08they detonated, and what you're doing to fix that. So there's still going
- 7:13to be some licensing issues because they have to have a launch license for that
- 7:17next launch as well. But Elon Musk has come out and said on what
- 7:23used to be Twitter is now X. He's come out on X and said
- 7:25we should be ready to fly in three to four weeks. So we know
- 7:31we documented the very bold tactics that he was using to kind of we assume
- 7:39push the FAA and fishing game to get his approvals to do the second launch.
- 7:47I mean, do we think this was successful enough that he's just making
- 7:51a statement, or do we think this is a case of he's trying to
- 7:56kind of let them know, hey, I'd like to hurry up and get
- 7:59another one launched here before Christmas. So again, let's go back to the
- 8:03company's communication. This is from SpaceX. After that second launch, they immediately
- 8:09posted on X this statement, congratulations to the entire SpaceX team on an exciting
- 8:16second integrated flight test flight of Starship. It was exciting in their words,
- 8:20Wes, So it's kind of exciting when things blow up, apparently at SpaceX.
- 8:24But then they said Starships successfully lifted off under the power of all thirty
- 8:30three Raptor engines on the super heavy booster and made it through stage separation.
- 8:35So by their standards, this is clearly a success. They will work to
- 8:43discover and eliminate the problems that prevented the vehicles from behaving in a way that
- 8:48they fully expected. But again they this is how they do their engineering.
- 8:56They blow things up then figure out what went wrong, rather than trying to
- 9:00every single possible problem before ever launching anything. And this is one of the
- 9:03reasons why they move as fast as they do. So so now again,
- 9:09as you say, maybe these are maybe them congratulating themselves and setting new timelines
- 9:13that are between now and Christmas is just a way to give a little extra
- 9:18pressure to the FAA or to the federal government for getting their next launch license
- 9:24to them as fast as possible. Apparently, they just have these starships all
- 9:28stacked up in their you know, in their warehouse. It sounds like Kiley
- 9:31Coyote with an acme box. They're just pull them out, next one,
- 9:35next one. It sounds like they've just got them all ready to go.
- 9:39I just wonder, And you know, this is just me approaching this,
- 9:43as you know, and I'm not the science guy here, I'm I'm I
- 9:48play one on a podcast, But I just look at this from a standpoint
- 9:52of we we know what their methods are when it comes to how they do
- 9:58their experiments. I just wonder, And this is what I think. When
- 10:01I hear them make a statement like we're going to launch again by Christmas,
- 10:05I just almost kind of feel like they're using this a very similar strategy with
- 10:09how they're handling the FAA and the fishing game. It just seems like they're
- 10:13just sort of like, well, let's just let's push the envelope here and
- 10:16see what happens. Let's kind of just push them and nudge them a little
- 10:18bit in that direction, and we'll find out if that strategy works or not.
- 10:24Yeah. So again, in a statement from Elon Musk himself on x
- 10:30he says that there are three There are three Starships in final production in the
- 10:33starbas High Bay, as can be seen from the Highway Highway. So he
- 10:37posted this on Sunday, so the day after the the you know, the
- 10:41incident, shall we call it, or the flight as they would call it.
- 10:43And so he's like, yeah, we got three more. It's no
- 10:46big deal. We'll just pull them out. We'll just launch them. Just
- 10:48give us our license, you know, we're ready to go. Don't let
- 10:52the federal government hold up business basically as their model. Right. So,
- 10:56so yeah, I think, I really think that all of these statements are
- 10:58definitely shaped in a manner as to apply pressure to any federal agencies that might
- 11:05come between them and being able to launch. So let's let's just hit quickly.
- 11:11Because the first launch they did not get the all of the engines to
- 11:18fire. They did this time, so obviously at the very least being able
- 11:22to do that, they're going to call that a win anyway. And we
- 11:24we sort of talked about that a little bit last week, because anything that
- 11:30they do that is an improvement is a step in that direction, so that
- 11:33is a win. And then they did get it again. Like you've pointed
- 11:37out, they lifted the you know, the biggest rocket ever now twice up
- 11:43in the air, but this time it went a little further and it got
- 11:46actually to that separation stage of it. So obviously not a one win,
- 11:52but every stage of this, every step moving forward, is a little bit
- 11:56closer to getting to the ultimate goal. Yeah, let's not gloss over that
- 12:01point. This is the most powerful rocket to ever fly, and they've flown
- 12:07it twice in the same year, and according to Elon, they're going to
- 12:11try to fly it a third time in the same year. So if you
- 12:16look at that cadence compared to say, you know, the nineteen sixties during
- 12:22the Apollo era when we were building Saturn fives, I mean, at the
- 12:26height of the Apollo program, we had a launch cadence that was something on
- 12:30the order of what SpaceX is doing. But this is their first year launching
- 12:35starships, right, what is it going to be like when they get these
- 12:39issues shall we call them tweaked and addressed how many starships could they potentially just
- 12:46be sitting there and popping off into space within a given twelve month period.
- 12:50I mean, we see what they've done with Falcon nine, we see what
- 12:52they've done with Falcon Heavy, in terms of just rapid launch cadence, and
- 12:58part of that is just being able to build and test and launch the way
- 13:03they do in order to figure out their rapid approach to engineering, the agile
- 13:09development method. So so yeah, it's gonna be very interesting to see will
- 13:13they launch before the end of the year, and will that launch be totally
- 13:16successful? What does that mean for Why? Quite frankly for NASA, because
- 13:22remember NASA is counting on Starship to be its ride down to the surface from
- 13:26of the Moon from lunar orbit. So it's part of the of the of
- 13:31the Artemis program, right, So so NASA is counting on this rocket.
- 13:35So again, don't think it's just eccentric million billionaires firing rockets off in the
- 13:41middle of the desert out in Texas. Now, this is actually part of
- 13:46NASA's Artemis program, and they need to get Starship launched safely delivered to lunar
- 13:52orbit so that it can then dock with the Orion spacecraft and take NASA astronauts
- 13:58down to the surface of the Moon. So there are national interests involved with
- 14:03the success of Starship. You almost wonder if, I mean, I don't
- 14:09I don't want to go too far into the communications part of this, but
- 14:13you do just wonder if maybe they have that tweet already strategically written that references
- 14:18China and the new space Race, Like you wonder if they've got one of
- 14:20those somewhere ready to put it in the chamber, like just in case they
- 14:26need it. You think maybe they might have one of those written just in
- 14:28case somebody at the FAA is, you know, thinking about slowing things down
- 14:33a little bit. All you have to do is look back at Elon Musk
- 14:39and his marvelous record with Twitter and see how all of that went. Yeah,
- 14:46to understand what space Ex's communication strategy is all about. Yep, I
- 14:50think that. I mean, I'm just saying if I was there, and
- 14:52I was on the marketing team, I'd probably have that tweet somewhere, just
- 14:56written and saved somewhere just in case I need to copy and paste it.
- 15:01But that's just me, all right. So maybe by Christmas, let's talk
- 15:05about the Sun. This is an interesting story as this sun spot there's some
- 15:13activity and it's starting to turn towards us. Yeah, so anybody who's a
- 15:20reasonably often or fairly regular listener to our podcast knows, good old doctor Cruzin
- 15:26has kind of a fetish with looking at the Sun. I think the Sun
- 15:28is just pretty awesome. It's the nearest star to the Earth, so we
- 15:33get the best look at it. We can really figure out a lot of
- 15:35the mechanics that's taking place with a star by studying our own Sun. And
- 15:39the other thing that's cool or at least interesting, is that it has a
- 15:43direct relationship with what's taking place here on the Earth through the Sun Earth connection
- 15:48or solar geomagnetic interactions. So that's just a kind of an interesting area of
- 15:56astrophysics to be able to study. It's a fun way to get students engaged
- 16:00in astronomy because things change kind of in real time and they're not just distant
- 16:06sort of static objects out there in the universe. The Sun is a very
- 16:08dynamic body in which to study. So that draws us to one of our
- 16:14favorite websites that we refer to here a lot, spaceweather Dot com. Friends
- 16:18go out and read spaceweather dot com each and every day because it's a great
- 16:21website. It's got lots of great information. But on today's website, as
- 16:25we're producing the show, here a big sunspot is turning toward the Earth.
- 16:30It's actually a sunspot complex. They all get catalog numbers, so it's active
- 16:36region number thirty four to ninety. But this active region was so big they
- 16:41couldn't they couldn't properly catalog it with only one number, So it's active region
- 16:47number thirty four ninety, Active region number thirty four ninety one, and active
- 16:52region number thirty four ninety two, all in the same giant magnetic disturbance on
- 16:59the face of the sun. Literally, the sunspot group is so big it
- 17:03takes three numbers to properly classify it and label it. I mean something on
- 17:07the order of two it's something on the order of two hundred thousand kilometers wide
- 17:11west. I mean this is kind of body shaming, isn't it. I
- 17:15mean this is like the old remember that when we first heard those stories about
- 17:18they were making people buy two or three seats on an airplane. That's what
- 17:22this feels like. And I think it's wrong. I mean, we could
- 17:26say that it's two hundred thousand kilometers tall, that's right. Does that change
- 17:32it? I think it would change it. So it's it's basically they're having
- 17:37to use three numbers to label it because it's so big. It's just so
- 17:41tall. It's so tall. That's what it is, really a tall sunspot
- 17:45group. That's the way they measure the that's the way they measure the coordinates
- 17:48on the Sun is by height. I mean it is now. I think
- 17:56it's rather lean, you know for such a tall sunspot group. Yeah,
- 17:59it's like a newt bowl type, you know. It's it's really really skinny,
- 18:03but just very very tall. So what could this what could what could
- 18:07this mean for us? When as as this is starting to turn towards us
- 18:12and uh, you know, getting us into potential problems, uh with the
- 18:18communications and things. So so what a sunspot group is? Again, it's
- 18:23a geomag I'm sorry, it's a solar magnetic storm that can have geomagnetic ramifications,
- 18:30uh if it erupts in such a manner that it injects material towards the
- 18:33Earth. This particular sunspet sunspot complex contains a dozen dark cores. So it's
- 18:41really more than twelve individual sunspots in this giant sunspot group, and this whole
- 18:48complex is crackling with M class solar flares. That's when the magnetic field is
- 18:52breaking down to such a point that it erupts material into space and also amidst
- 19:00a significant amount of X rays. It's doing this kind of off to the
- 19:03side right now, but the Sun rotates similar to how the Earth rotates,
- 19:08and it's rotating around in a direction it's going to bring this very big active
- 19:15region of sunspots directly in line with the Earth over the next few days.
- 19:19And that's why we're talking about the story, because if this giant sunspot group,
- 19:26which is very active, is pointing toward the Earth, it can actually
- 19:29pose a threat for Earth directed solar flares by the middle of the or toward
- 19:34the end of this week. So while you're sitting there eating your Thanksgiving turkey
- 19:38with your family, you might be getting just a giant dose of radiation from
- 19:44the Sun in the form of ejected material from a massive solar flare. But
- 19:48you know, just enjoy the cranberry sauce. Well, and I think you
- 19:52should also maybe just factor in that radiation. As you're coordinating and calculating your
- 19:56cooking time for your turkey, that would probably be just look, you know,
- 20:00it might be a small adjustment, maybe it's like ten seconds you take
- 20:04off the cooking time, but if you want it to be perfect, you
- 20:07got to figure there might be some of that radiation coming in. I mean,
- 20:11the pros can read all the signs, if you know what I'm saying.
- 20:14They know how to read the greens, right, so they know where
- 20:17you know where, they know where the slope is on the green. And
- 20:18this is just kind of like that. If you if you're a true awesome
- 20:22professional turkey chef for Thanksgiving, you're going to consider the sole radiation that's going
- 20:27to contribute to that oven temperature and throw off your cooking times. So I
- 20:32think that's that just goes without saying. I think true expert cooks or consulting
- 20:36spaceweather dot com they should be I think I'm speaking for a lot of folks,
- 20:41especially I don't want to say especially, but I'll say especially. There's
- 20:45there's fans of a certain team that always plays on Thanksgiving. They probably want
- 20:52me to ask this question. I not so much. I don't really care
- 20:56so much because of who this team is and who my team is. UH,
- 21:00but is there any danger of uh satellite problems and maybe as football being
- 21:07ruined on the Thanksgiving Day, even if it's just for a few minutes,
- 21:10and the Cowboys fans have to see them for every possible second they can see
- 21:12them. I mean, I think that there's at least a reasonable opportunity for
- 21:18that kind of an event to take place. I don't know what it would
- 21:22do to the jumbo JumboTron and Jerry World, I mean, not get to
- 21:25the Cowboys. But you know, I'm just saying. You know, a
- 21:27misplaced solar flare can have repercussions right here on the Earth, including power glitches
- 21:32that might actually take down fantastically huge stadium monitors and cause disruptions to NFL broadcast.
- 21:38It's not out of the question. Yeah. Well, they are playing
- 21:41the Commanders, and even the Giants beat them twice, so I think they
- 21:45probably are going to be just fine if they miss a few seconds of the
- 21:48game coming up after a quick break. This is one of the best,
- 21:52one of the best teases ever. UH, Saturn's rings are going to disappear.
- 21:57We'll talk about that next. I want to be clear that was not
- 22:22really Cowboys hating. That's not what I was doing. That was not I
- 22:25mean, I hate them, but that's not what I was doing in that.
- 22:27That's just part of sports, sports rivalries. I wasn't throwing shade.
- 22:32I'm acknowledging they're having a fantastic season and I'm not happy about it. But
- 22:36that's just because you know, my team stinks, That's all I mean.
- 22:41And here I thought you were talking about the Lions. Well they look pretty
- 22:45good too. They look pretty darn good as well. Let's talk about Saturn.
- 22:49Let's talk about the Rings of Saturn, because I've seen the story floating
- 22:55around online and I thought, oh no, this is one of those stories
- 22:56where they're just trying to like bait you and reel you in and they want
- 23:02to oh man, they want to get you and a click on it and
- 23:04it's just clickbait. And but no, this is a real thing. This
- 23:08is Saturn's rings are going to disappear sometime in twenty twenty five. Now,
- 23:17there's some positive news on the other side of it, But how how do
- 23:18the Rings of Saturn just vanish? Yeah? I mean, I think you're
- 23:22right the first time, I think this is total clickbait, but you know
- 23:26that's just me. No, let's just talk about it a second. So
- 23:30what's really happening is that they're going to turn edge on relative to our vantage
- 23:36point of here on the Earth. So in the manner in which some of
- 23:40the headlines are written, they do kind of lead it to believe that Saturn's
- 23:45rings are going away. So they're not really going away. They're just gonna
- 23:49We're just gonna move to a position in our orbit around the Sun where we
- 23:55line up with that plane of the rings of Saturn and they disappear for a
- 23:59while as viewed from the Earth. And what's kind of weird is they're going
- 24:02to disappear in March, then they're going to kind of come back over the
- 24:06summer, then they're going to kind of disappear again in November, and that's
- 24:10just some orbital mechanics taking place. But anyway, we're going to see we're
- 24:15going to see Saturn with a largely diminished set of rings once again as viewed
- 24:21from the Earth. Now when they really are at a point of vanishing again
- 24:26relative to the Earth. It's just a perspective, folks, Saturn's rings are
- 24:30very very thin, and if you get right in line with them, you
- 24:33can't you can barely tell they're there, even with powerful backyard telescopes. So
- 24:37that's going to happen in March and again in November of twenty twenty five,
- 24:41but only for a very short period of time. This is called a ring
- 24:47plane crossing. Ring plane crossing. It occurs approximately every fifteen years or so.
- 24:53This one's going to occur, though, largely when Saturn is also aligned
- 24:57with the Sun relative to the Earth. So it's really going to be hard
- 25:03to even see this ring plane crossing during the twenty twenty five events, and
- 25:08so that's, you know, it's a little bit unfortunate. It's kind of
- 25:11actually interesting sometimes to look at Saturn through a telescope and not see its rings.
- 25:17It's just kind of instructive. But as happened in two thousand and nine
- 25:22that that event was largely obscured back in two thousand and nine because of again
- 25:26an alignment with the Sun. It's going to happen that way again in twenty
- 25:30twenty five, so it's going to be into the twenty thirties before we really
- 25:33see a ring plane crossing. With Saturn. That makes the rings appear to
- 25:38disappear and still be visible in the nighttime sky because Saturn's not also in line
- 25:45with the Sun as relative viewed from Earth. So so yeah, it's it's
- 25:48all kind of clickbait. Now, listen, it's interesting clickbait, right,
- 25:52it's fun. But Saturn's rings really are evaporating, and that's a whole different
- 26:00story, and you might see some headlines out there on that story. That
- 26:03appears to be something really interesting is that we're living in a very special time
- 26:08where Saturn actually has large visible rings. It seems from the most recent science
- 26:14that those rings weren't always around. In other words, Saturn has not had
- 26:18those rings since the early part of the Solar system. It actually is not
- 26:22going to have them at least in terms of the age of the Earth that
- 26:26much longer. And so we just happen to be living at a time where
- 26:30those rings do exist. They're very easy to see because they're somewhat relatively dense
- 26:36and very ice coated, which reflects light back to the Earth very well,
- 26:38and so we can actually see them line up with the plane of Earth's orbit
- 26:44and disappear. And so yeah, consider yourself fortunate that you actually lived during
- 26:48a time where Saturn actually had big, massive rings and you got to see
- 26:52them. And it's good for the sake of sitting around the table Thanksgiving.
- 27:00If people are talking about anything and they mentioned, oh, I heard that
- 27:03the rings are going to you can explain they're still there. You're just not
- 27:07gonna be able to see them. It's an optical illusion. Yeah, and
- 27:11really we're looking for reasons to be thankful during this week of Thanksgiving. That's
- 27:15another one. We're thankful that we're even living during a time where Saturn has
- 27:18rings. But that's if the family is trying to, you know, having
- 27:23a hard time identifying their blessings, you know, just throw that one out
- 27:26and see how they see how they react well. And then there's also the
- 27:30just and we talk about this a lot, especially when it's uh there.
- 27:33We talk about it with stories like an eclipse or something. But this is
- 27:37one of those things that if it gets people, if it's the gateway,
- 27:40if it's what gets them into being curious about our planets and our solar system,
- 27:45then you know, clickbait away. But we know that people are just
- 27:48they're they're they're dabbling this, which sounds so crazy. You know, Oh
- 27:53my gosh, the rings of Saturn are going to go away and they're going
- 27:56to disappear, and they and then they have to actually click on it and
- 27:59read it. A lot of times people even if they don't even click on
- 28:02it and read it, they just see it and then they move like,
- 28:03oh man, the rings are going to disappear, and that's what they think
- 28:07is the story. So that's why I'm saying at the table, if someone
- 28:10says it, you can sound really smart by being able to explain it absolutely.
- 28:15And so you're welcome podcast listeners. There you go. Let's talk about
- 28:21this asteroid image from Lucy. This is pretty interesting. Yeah, so,
- 28:26I mean, perhaps another clickbait term kissing asteroids. Oh my goodness, it
- 28:30sounds scandalous. I mean, if you lead with that headline. Yes,
- 28:37So, Lucy, Ladies and Gentlemen, is a spacecraft that's out there investigating
- 28:41asteroids in our Solar system. It got the name Lucy after that very famous
- 28:48Ethiopian fossil that appears to show an early human relative and might be kind of
- 28:53a missing link. So this asteroid mission is actually looking for the seeing link
- 29:00in the asteroid evolution. Out there in our Solar System, which is kind
- 29:03of interesting. So that it's a NASA spacecraft that's out there studying asteroids and
- 29:11and exploring the early origins of the Solar System. Well, on its way
- 29:15out there, it was investigating an asteroid by the name of din Kinish didn't
- 29:21Kinesh? How do you read that west, didn' kanesh? That sounds good
- 29:25to me? Esh what we're gonna go with didn't Kinesh at least? I
- 29:30am? It's an Ethiopian word. It means the lucy fossil, So it's
- 29:33the Ethiopian word for the lucy fossil, an Ethiopian fossil. Anyway, So
- 29:37all right, So asteroid didn Kinesh was discovered by the what they call Project
- 29:45Linear, which is the Lincoln Near Earth Asteroid Research Survey out at SCORO in
- 29:48New Mexico. That's where the big radio telescopes that that we're out there in
- 29:52the desert during the movie Contact. Anyway, So this asteroid that was discovered
- 29:56is it's an interesting asteroid because it's very small itself. It's only about twenty
- 30:03six hundred feet across in diameter. It's one of the smallest asteroids in the
- 30:07main belt of the asteroid belt. It's the smallest one ever to be explored
- 30:12by a spacecraft, which is that Lucy vehicle that's out there from NASA.
- 30:18So all that's interesting, But Dinkinesh has also been discovered to be what they
- 30:22call a contact binary. In other words, it has a little Moon asteroid,
- 30:29It has a contact binary satellite that's only about seven hundred and twenty feet
- 30:33across. And what it means by contact is the orbit of that little Moon
- 30:40asteroid gets so close to Dinkinesh that it actually makes contact. It actually physically
- 30:45touches, bounces back off, and goes about its way in its orbit.
- 30:52So contact binaries now turns out that contact binaries in the asteroid belt, they're
- 31:00maybe not as rare as we might think they are. It's it's kind of
- 31:03an unusual circumstance in a sense, but it's really not as rare as we
- 31:07might think. So asteroids touch each other, they bump into each other in
- 31:11their orbits out there. However, here's the punchline. The little Moon itself,
- 31:18the natural satellite that's only seven hundred and twenty feet across itself, is
- 31:22also a contact binary. In other words, it's not just one little asteroid.
- 31:29It's actually a pair of little asteroids. That's what the new look at
- 31:33some of the Lucy data has discovered. So what we have is a pair
- 31:38of contact binary asteroid moons orbiting around a relatively small asteroid called Dinkinesh. And
- 31:48they themselves also bump into Dinkinesh. So there's just a lot of bumping into
- 31:52each other out there in that part of the asteroid belt around that Loucy named
- 32:00object in the Ethiopian language, and they refer to this as kissing asteroids.
- 32:07This is what Kissing asteroids are asteroids that just just gently kind of nudge one
- 32:13another. They're not slamming into each other with the violence that causes disruption,
- 32:19kind of like a dart mission or something. You know that the dart mission
- 32:22was like the ultimate, like, hey, let's go hit an asteroid as
- 32:23hard as we can and see what happens. So but but these are these
- 32:28are gentle contacts that do not destroy the the objects, and they also do
- 32:31not knock them out of their orbits. They just come into contact and that
- 32:36and and therefore it's kind of like a kiss in the sense of a gentle
- 32:39touch, right, so, Uh, NASA is kind of funny sometimes to
- 32:44listen to when they describe things. Uh, they describe finding this companion that's
- 32:47also a contact binary as quote unanticipated. Well that was unanticipated, you know.
- 32:55The next time, you know, I go to a restaurant and ask
- 32:59for a lobster and they served me a shoe. I'm gonna say, well,
- 33:01that was unanticipated. Just a master of understatement, which is project scientist
- 33:09John Spencer at NASA saying that this find was somewhat unanticipated to go on.
- 33:15His quote further says, we just haven't seen many close up, and we've
- 33:20never seen one orbiting another asteroid. Says Spencer in referring to contact binaries.
- 33:27Dincannessh showed unusual brightness variations as the spacecraft got closer. So here's the interesting
- 33:31thing. They already knew that this might be going on, just by watching
- 33:35how bright and how dim din Kinesh was getting over time. They had a
- 33:39brightness variation. So John Spencer goes on to say, it gave us a
- 33:44hint that didn Kinesh might have a moon of some sort, But we never
- 33:47suspected anything as so bizarre as the moon itself being a contact binary. So
- 33:53there you go, a fun story from the folks at the Lucy Project and
- 33:59just a couple observations. One I like that you went to the old classic
- 34:02joke about being served as shoe. That's great. I don't know when that
- 34:07would ever actually happen in a restaurant, but it's a classic old joke and
- 34:10I appreciated it. The other one is if you're a middle school teacher and
- 34:14you'd like to, I don't know, stand in front of your class and
- 34:16talk about kissing asteroids and try to get through it without anybody giggling and just
- 34:22daring them to. You pulled this story from Universe today dot com. Just
- 34:27want to let you know it's there, because when school starts back next week,
- 34:30I think that would be a great challenge that first day back. They're
- 34:32all wound up there back at school, and you know, they're hopped up
- 34:37on desserts and things from that. I don't know, they're probably just going
- 34:39to be dragging when they get back Monday. But if you want to throw
- 34:43this story out there to them about kissing asteroids, good luck. We challenge
- 34:46you. I challenge you to do this story middle school science teachers, and
- 34:52you know. If people laugh, then you can say, well that was
- 34:54unanticipated, yes, I like it all right. Well, what you can
- 34:59in anticipate is that you guys are going to be closed for Thanksgiving and for
- 35:02a few days after that so that the staff there can enjoy time with their
- 35:08families and get a few days off. But you guys will be back open
- 35:10again soon. It's not like the rings of Saturn that are going away forever,
- 35:15you know, go away. You guys'll be back. I don't know.
- 35:21I mean, we might be evaporating like the rings of Saturn, who
- 35:23knows. But we're gonna be closing down midday on Wednesday, November twenty second,
- 35:30and then be reopening the Monday after the Thanksgiving holiday, which is Monday,
- 35:35November twenty seven. So just yeah, check the website, check our
- 35:38Facebook page, and you can find out all the great information about all of
- 35:43the programs taking place at Coalmustate University's Coca Cola Space Science Center, including all
- 35:46of our awesome shows in our Omnosphere Theater. And that website is Go to
- 35:52www dot cc SSC dot org. Point your universal resource locator at Charlie Charlie
- 36:00SamSam Charlie dot org. Happy Thanksgiving, my friend. Same to us and
- 36:07to our listeners, and we appreciate you listening, and we'll do this again
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