Remaining Frontier? The Evolution of Planetary Science Missions – Eos

Final Frontier? The Evolution of Planetary Science Missions - Eos

The most recent episode of Third Pod from the Solar options an interview with Fran Bagenal, a planetary scientist on the College of Colorado Boulder. Bagenal gives an overarching view of various planetary missions and describes how the analysis and findings of every have constructed upon the improvements and discoveries that got here earlier than. Bagenal has had an enchanting profession engaged on NASA missions from Voyager to Juno to New Horizons—and now she is looking forward to what we could study Saturn’s moon Titan throughout the upcoming Dragonfly mission.

On this episode, Bagenal additionally discusses the significance of training that engages college students and the necessity to assist the completely different pathways individuals take to pursue science. She encourages innovation to realize one thing tough, together with the seek for life on Jupiter’s moon Europa. She hopes that at some point, scientists will be capable to tackle a mission they know is hard, corresponding to exploring objects farther out within the photo voltaic system—and even one thing nearer to house, just like the floor and attainable seismology of Earth’s twin, Venus. Essential missions like these will assist proceed driving the Earth and house sciences into the long run.

This episode was produced by Katie Broendel and blended by Kayla Surrey.

—Katherine Broendel, Media Relations Program Supervisor, AGU


Episode Transcript

Shane Hanlon (00:00): Hello, Nanci.

Nanci Bompey (00:01): Hello, Shane. How’s it going?

Shane Hanlon (00:03): Good. Good. We’re getting straight into it immediately. So, are you accustomed to the Golden File that was on Voyager? Do these phrases imply issues to you?

Nanci Bompey (00:13): I’m. We even have a e-book detailing that. Don’t ask. However, sure, fairly acquainted.

Shane Hanlon (00:19): All proper. So, we’re going to speak about this extra, however the in need of it’s, for many who aren’t conscious, there’s this report on the Voyager Spacecraft that, the Voyager is the farthest factor out within the universe proper now that we’ve ever made, and folks put issues on this report, like photographs, and audio, and all kinds of stuff. So, I used to be , in the event you may select, Nanci, one factor to go on the Golden File, what would that factor be?

Nanci Bompey (00:45): Shane, is that this not an apparent query? This podcast.

Shane Hanlon (00:56): Welcome to the American Geophysical Union’s podcast concerning the scientists and the strategies behind the science. These are the tales you received’t learn within the manuscript or hear in a lecture. I’m Shane Hanlon.

Nanci Bompey (01:05): And I’m Nanci Bompey.

Shane Hanlon (01:06): That is Third Pod from the Solar.

Properly, Nanci, I assume individuals are lacking out, or not individuals, however extraterrestrials, if they arrive throughout Voyager, are lacking out.

Nanci Bompey (01:23): They’ll by no means hear this glorious podcast-

Shane Hanlon (01:25): They’ll by no means hear our pretty voices.

Nanci Bompey (01:26): … as a result of we’re not on the Golden File. However we’re speaking concerning the Golden File immediately as a result of immediately’s all about planetary science, and the Golden File was on Voyager, which is the farthest factor that we’ve, as people, have put out into the universe. So, I’m going to usher in our producers for this episode, Katie Broendel and Liza Lester. Hello, guys.

Katie Broendel (01:49): Hey.

Liza Lester (01:49): Hey.

Nanci Bompey (01:51): Liza, so Voyager, huh?

Liza Lester (01:54): Yeah, Voyager, launched within the ‘70s. There have been two Voyager missions, and so they confirmed us among the first up-close, comparatively up-close, views of those planets, Saturn, and Uranus, and Neptune, and Pluto, which might be so far-off. I feel you could bear in mind additionally the Pale Blue Dot, the picture that it took of Earth from out past Pluto-

Nanci Bompey (02:13): I really like that, Carl Sagan. Yeah.

Liza Lester (02:14): … trying so small. Yeah, so that they’ve handed outdoors the photo voltaic system now, however they’re nonetheless phoning house often.

Katie Broendel (02:22): Yeah, it’s actually attention-grabbing stuff, too, and really, final yr Liza and I have been capable of discuss to a planetary scientist. She’s been engaged on missions from Voyager within the late Seventies to New Horizons and in addition Juno, which arrived at Jupiter in 2016, I consider. She has this actually fascinating profession and had a entrance row seat for some attention-grabbing findings.

Fran Bagenal: (02:52): So my title is Fran Bagenal. I’m on the College of Colorado in Boulder. I work within the laboratory for atmospheric and house physics, the place I work on a number of house missions. Proper now, it’s the New Horizons mission to Pluto, following on to different areas within the Kuiper Belt, in addition to the Juno mission that’s in orbit round Jupiter.

Katie Broendel (03:14): What’s it prefer to be among the many first on the planet to see this new knowledge, these new pictures coming in from these distant locations?

Fran Bagenal (03:22): It’s some of the extraordinary experiences in life to try this, to see the primary footage, to get a way of an entire new world. Each time you make predictions, and your predictions are at all times completely unsuitable. What you discover is totally completely different, and it’s actually superb. I may provide you with an analogy that is perhaps enjoyable.

I used to do some caving once I was a pupil on the College of Lancaster in Northern England. We’d go down these limestone caves, and typically we’d discover new caves, possibly in Spain or Mexico. It’s a bit like going alongside a darkish passage in a cave. You’re sporting a headlamp, and you then flip round a nook and also you see a tremendous crystal construction, otherwise you discover a complete new pathway. And it’s the identical kind of factor. It’s like, “Wow, take a look at that. That’s cool.”

Katie Broendel (04:21): How have outcomes and findings from every of those missions helped inform subsequent missions? So, we went from Voyager to the newer ones, New Horizons, Juno, after which looking forward to the Dragonfly mission that was just lately introduced. Are you able to please discuss concerning the evolution of those missions?

Fran Bagenal (04:42): So there’s a normal manner of speaking about it, which is to say, the very first thing you do is a fly-by and get the essential concepts, and you then take a payload, which kind of does large view. It kind of casts a large web within the science that it would do, since you actually don’t know what science you’re going to see. So, you do your fly-by, and you then say, “Okay, that is what we realized, these are the large questions, and now we have to return with a extra particular set of devices. We’re going to enter orbit and we’re going to go search for no matter, systematic variations of house and time, or go and do an in depth survey of one thing.” So, for instance, after Voyager, we had Galileo going to the Jovian system.

Speaker 6 (05:22): Houston now controlling.

Speaker 7 (05:29): Loud and clear. [inaudible 00:05:33].

Speaker 8 (05:29): Roger roll, Atlantis.

Fran Bagenal (05:32): And the thought of the Galilean mission was to take a look at the moons, the 4 Galilean moons, and get a number of views of what they’re like, which it did certainly.

Speaker 9 (05:40): And the Sunnyvale flight director has simply confirmed the profitable deploy of the inertial higher stage in Galileo.

Fran Bagenal (05:47): It mapped up the volcanoes on Io. It seemed on the ice on Europa and bought us considering, possibly there’s, and we realized that there’s an ocean, liquid water beneath the ice at Europa, that Ganymede has a magnetic discipline, that Callisto’s a bit type of boring. Poor Callisto, simply [crosstalk 00:06:06] best, however you understand these completely different worlds, poor little Callisto. Anyway, we realized rather a lot, after which that raises some very particular questions.

Speaker 8 (06:15): Roger, Atlantis. We copy. That’s nice information. Thanks.

Katie Broendel (06:18): What do you suppose was so notable about Voyager?

Fran Bagenal (06:21): So the factor that’s particular about Voyager is the chance it had at a selected time with the liner up of the planets, this factor that we name syzygy … which is the place all of the planets are in the identical quadrant of the photo voltaic system, and it occurs like each 130 odd years, one thing like that. It occurred to be within the late seventies when this was taking place, and so we now have the chance to ship a spacecraft out, get a kick at Jupiter, go on to Saturn, get a kick at Saturn, and go onto Uranus and do the identical out to Uranus and Neptune. And to go to the 4 large large planets one after the opposite, that’s one superb factor that occurred on the proper time. However this additionally occurred after we had the potential to take a reasonably subtle, for the time, spacecraft that would have cameras that have been very succesful in contrast with earlier ones, had recording techniques, and had a capability to make a number of observations with a complete number of completely different devices and ship them again.

And though the pc functionality are fairly pathetic, your telephones have many thousand occasions extra computing functionality than Voyager has, it was capable of work and take these footage, fly by and present us and reveal these superb new worlds, the moons round Jupiter, the rings round Saturn, after which Titan, after which go on, for the primary time, go to Uranus and Neptune and discover these environments, which was simply unimaginable.

Katie Broendel (08:11): Was there something you’d’ve wished so as to add to the Golden File?

Fran Bagenal (08:15): The Golden File is about us. It’s about us as a tradition, as a world. What I feel can be attention-grabbing can be to consider attempting to inform a narrative of human evolution or of tradition. I imply, it’s very exhausting to suppose how to try this, however we’re kind of avoiding these matters, proper? We don’t actually discuss cultural historical past and so forth and so forth. Possibly I’m extra conscious of this being a Brit coming. I’ve lived right here now extra years in America than I lived in England, however it kind of makes you extra conscious of cultural background. That may’ve been type of enjoyable to placed on. I don’t know the way you’d do it. You in all probability would put it on a report, however trendy know-how, thumb-drive.

Liza Lester (09:14): When Voyager was getting the primary appears to be like at a few of these moons up shut, nearer than we’d seen earlier than, I imply, was it a shock that they have been so attention-grabbing?

Fran Bagenal (09:24): Certainly. I imply, we did have a clue that Io was a bit peculiar, as a result of it triggered radio emission. We knew that since 1965, and we knew that it appeared to have kind of unusual brightening options. And in some unspecified time in the future, we thought, “Oh, it appears to be like prefer it has sulfur and oxygen coming off it, and it has an environment.” We knew a few of these issues from spectroscopic research from the Earth telescopes, however they’re simply kind of little hints, little clues. From the Earth, these objects are nonetheless fuzzy dots, actually not more than a fuzzy dot. So to fly by and go from a fuzzy dot to upfront geology, upfront atmospheric construction, upfront detailed problems with scientific dialogue of the inside of the floor, the atmospheres, the interactions with the encompassing plasma, you actually transfer ahead an enormous quantity once you truly stand up shut.

Liza Lester (10:19): Do you suppose seeing, it’s simply seeing these footage actually to catch the bug for planetary science then? Or was it already on, you have been already on board?

Fran Bagenal (10:26): Properly, I used to be already on board. After I was a child, in fact, there have been two large components. One was, in fact, the Apollo period, which affected lots of people of my technology.

Neil Armstrong (10:40): That’s one small step for man, one large leap for mankind.

Fran Bagenal (10:44): Watching individuals strolling on the moon, after which there was science that they have been doing. We did hear about that science, however the different factor that’s type of thrilling is that was a time when the Earth was being studied and plate tectonics was being found. There was rather a lot on the British TV about what individuals have been discovering trying on the oceans, volcanoes, attempting to work out the magnetic discipline signatures, and so forth and so forth, and placing all of it collectively and saying, “Wow, it appears to be like just like the Earth has plate tectonics.” And naturally, I started to suppose, “Properly, what do different planets have? And what’s it like elsewhere.”

I heard Carl Sagan, and I truly was fortunate to fulfill him once I was 16. He gave a chat at Cambridge, and I went to listen to him discuss as a highschool child. He was speaking concerning the Mariner observations at, or possibly it was Viking. I’m sorry. I can’t bear in mind. It’s manner again then.

Speaker 11 (11:39): Voyager is passage by Jupiter accelerated it in the direction of an in depth encounter with the planet Saturn. Saturn’s gravity will propel it onto Uranus. And on this recreation of cosmic billiards after Uranus, it can plunge on previous Neptune, leaving the photo voltaic system and changing into an interstellar spacecraft.

Nanci Bompey (11:59): Oh, I really like Carl Sagan. That’s undoubtedly on our checklist to re-watch the unique Cosmos [inaudible 00:12:04].

Katie Broendel (12:04): Yeah. Similar right here.

Nanci Bompey (12:05): Quarantine time. Yeah.

Katie Broendel (12:06): So good. Such a superb present. And it was actually compelling to speak to any individual like Fran who has had this chook’s eye view of the completely different planetary missions going again 30 to 40 some odd years, and now she’s actually trying ahead to the upcoming Dragonfly mission and what new issues we’re going to have the ability to study from it.

I need to return to Dragonfly for a second.

Speaker 12 (12:32): Announce that our subsequent New Frontiers mission, Dragonfly, will discover Saturn’s largest moon, Titan. Dragonfly would be the first drone lander with the potential to fly over 100 miles via Titan’s thick ambiance. Titan is in contrast to another place in our photo voltaic system, and essentially the most similar to early Earth.

Katie Broendel (12:53): What do you suppose that mission will assist us perceive, and what are you most excited to probably study from it?

Fran Bagenal (13:01): I’m not a Titan skilled, and I’ve simply been following. The truth is, when the Huygens probe landed on Titan, it was ejected, carried on the market by Cassini, after which put it into the ambiance and onto the floor, we didn’t understand it was going to outlive on the floor. I don’t work in that space, however I took the time off. I went into the lab, and I went and spent the entire day watching NASA TV with the general public and different individuals and getting engaged in watching. It was so cool to observe this probe moving into and taking footage of a panorama that appears essentially the most terrestrial that I feel we’ve bought elsewhere within the photo voltaic system, as a result of you’ve gotten kind of issues that appear to be rivers, you’ve gotten issues that appear to be oceans, you’ve gotten mountains, you’ve gotten sand dunes. Properly, they’re not truly. The sand might be water or some hydrocarbons and so forth. It’s not the standard stuff, however it appears to be like nearly terrestrial. And so when the probe got here in and took these footage getting nearer and nearer, after which it landed on the floor, and also you noticed this scape that kind of a bit like a very frozen Utah, it was implausible.

So, I feel what we’ll do with Dragonfly is, I feel the plan is to fly over and get a lot better measurements throughout a variety of locations, and really get a extra detailed sense of key, figuring out the individuals concerned, I’m certain they’ll be selecting crucial key scientific targets, after which going there and actually attempting to grasp the bodily processes, due to course, we need to perceive how this object, which is rather a lot smaller than Earth with a thick ambiance, with very completely different temperatures, how does the geology and the connection between the inside crust and ambiance work in relation to a spot like Earth, or Mars, or Venus. It’s like a terrestrial planet in that respect, however typically a far a part of parameter regime.

Katie Broendel (15:14): If you happen to may go to 1 place within the photo voltaic system, the place would it not be and why?

Fran Bagenal (15:21): I work in planetary magnetic fields and with charged particles, and so for that, the kind of mission we’re doing with Juno the place we fly over the poles, we’re going via the auroral area, we’re measuring the cost particles, and so forth, is essential. And I’d like to try this once more at different locations. In fact, Uranus and Neptune can be implausible. There’s a tilted magnetic discipline with very weird altering magnetic orientation. It will be nice to go, I feel, the planet that’s the most uncared for is Venus, our sister planet. Proper? Very related in measurement to Earth, extraordinarily completely different in its properties. Why is it that this planet that’s proper subsequent door has such a distinct ambiance, such a distinct floor? What’s it about planetary evolution that led to Venus being too sizzling, Earth excellent, and Mars too chilly for all times? Liquid water on the floor, but additionally how do these planets work?

Liza Lester (16:23): I’m going to ask a primary science query, as a result of we have been simply speaking about magnetic fields and charged particles, and that’s the reason do some worlds have magnetic fields and others don’t?

Fran Bagenal (16:33): It’s an excellent query as to why notably our sister planet, Venus, doesn’t have a magnetic discipline and the Earth does, after which why does this moon Ganymede have one, whereas not one of the different moons that we’re conscious of have them? And actually dynamo concept could be very, it’s tough, tough to mannequin, tough to generalize. The simplest method to say is you want three primary elements. You want a quantity that’s electrically conducting, and for the terrestrial planets, and for Ganymede, that could be a liquid steel area within the outer core. You want a supply of vitality that may flip over and convect that area of liquid steel, and that’s, for the case of the Earth, it’s considered the condensing out of heavier iron from a combination of much less heavy components within the outer core. It’s gravitational settling out of the inside core.

Now, once you go to Jupiter, you don’t have a steel core, nor do Uranus and Neptune. You may have gases, that are at ample stress and temperature. So within the case of Jupiter, it’s metallic hydrogen, oxygen, sorry, is it’s settled out, however principally you’ve gotten hydrogen and that’s damaged up into protons and electrons that may transfer relative to one another, and so you’ve gotten a dynamo in facet.

Now the third ingredient, one is conductor, second is a liquid conductor, second is a supply of vitality. The third is slightly little bit of rotation. However I perceive that each single planet, even Venus, has sufficient rotation, regardless that Venus rotates very slowly. So, rotation is just not the issue with Venus. It might be that the outer core has solidified, so there’s not a liquid metallic area, or it could possibly be that there isn’t a supply of vitality to drive ample convection, or thirdly, it could possibly be the dearth of plate tectonics is just not cooling the outer layer, since you wanted a temperature gradient, chilly on the surface, heat on the within, and possibly that’s suppressing the convection deep inside. So, these are simply concepts. We actually don’t know.

Liza Lester (18:56): What do you suppose is the plate tectonics stage discovery that we’re now? Or I assume the higher query is-

Fran Bagenal (19:02): You imply on the Earth or elsewhere?

Liza Lester (19:05): Or elsewhere. What can be that stage of query or concept?

Fran Bagenal (19:10): So for Venus, we all know that Venus, from trying on the radar maps of the floor, that the influence craters, distribution of influence craters, recommend there’s pretty uniformly resurfaced, one thing like 500 million, 600 million years in the past, one thing like that. And so then comes the query, what was it like earlier than that? Was it earlier than that similar to the Earth with plate tectonics and only a common Earth-like object, which then kind of solidified and stopped and stagnated? Could possibly be. Or there was one thing else that led to Venus not having convection and never having plate tectonics ever, or by no means having a crust that would transfer round, or possibly water was vital. Lots of people argue water performs a giant position in lubricating, for need of a greater phrase, the Earth’s plate tectonics, and in the event you don’t have water on Venus, as a result of it was just a bit bit too heat, then possibly it by no means actually had plate tectonics. So in some methods I feel going again and looking out on the Earth, sorry, going again and Venus can be very helpful in looking for, possibly put a lander that you may do some seismic exams to search out out what it’s like inside. It wouldn’t need to dwell for very lengthy. I don’t know. There are many concepts of issues that we may do. Sure, it’s powerful, however let’s consider methods to try this.

Shane Hanlon (20:42): I do know that there are missions going to Mars and we’re going again to the moon, and so we appear to be going away from the solar. Proper? However I feel it’s actually attention-grabbing speaking about Venus. I really feel like we don’t hear rather a lot about science on Venus and finding out it, and I think about that stuff like that is solely attainable when we now have curiosity from the general public. Such as you get extra non-science, or yeah, the non-science public excited about such a factor and which may truly assist drive individuals’s curiosity, scientist’s pursuits in type of the bigger photo voltaic system outdoors of among the planets we would hear about extra typically.

Katie Broendel (21:19): Yeah, Completely. And that’s one thing that Liza and I talked to Fran about.

How can members of the scientific neighborhood one, advocate for higher funding for the sciences? Additionally, how can we encourage extra college students to consider, be excited by, and really contemplate and pursue levels in science?

Fran Bagenal (21:45): An important factor is we have to enhance the variety of academics in colleges, notably excessive colleges, who’ve a bachelor’s diploma in physics or different sciences, Earth sciences. We have to do one thing about that, Earth sciences, chemistry, biology, math, physics, all of those areas. So, the academics have to be in all probability paid higher. We have to be producing extra bachelor’s levels, possibly working with the neighborhood faculties to do mixed training and science levels. I feel we must always truly change the title of physics to P-H-U-N, enjoyable, and excite individuals to review physics. I’m anxious that every time individuals say, point out the phrase physics or math, they go, “Oh, however I couldn’t do math.” I’m like, “No, by no means say that. By no means say that.” All of us wrestle with it, and we have to simply, as a nation, be placing much more vitality and energy into colleges, native colleges, after which cranking up the science on the colleges. You are able to do that regionally.

Liza Lester (22:49): What do you suppose it’s that about physics that’s discouraging ladies, or the place is the issue within the pipeline?

Fran Bagenal (22:55): We checked out this within the eighties, and the reply was that in the event you checked out, it was extra within the excessive colleges, however I feel the issue now could be that the universities, as a result of it’s kind of 50/50 at the highschool ladies and guys. And in the event you take a look at the universities, that’s the place it drops to twenty%. I feel the issue is that the courses are giant. I feel that there’s an perspective coming from highschool that you simply simply want to review by yourself, and also you move your homework. When you get to varsity, you have to discover ways to work collectively in a gaggle, you have to do finding out collectively. You must make it social. The schools have to have examine areas which might be protected, and comfy, and enjoyable, and pay juniors and seniors to be examine buddies to return in and assist the freshmen and the sophomore recover from that bump of how do I resist this math and physics and having to do these homeworks, and discover ways to work collectively as a gaggle and discover ways to train one another this materials, as a result of it may be enjoyable. It may be attention-grabbing. And yeah, the academics have to study to be rather less snooty. I’m a physicist, and slightly bit extra pleasant, and encourage the scholars to work collectively and work with different pupil on this enjoyable tasks.

Liza Lester (24:14): I assume that leads me to the query on the time you have been going via your education, I’m certain you’ve been requested this many occasions, however what was it that inspired you to proceed?

Fran Bagenal (24:24): I caught with it for a few causes. One is as a result of sure, the British BBC, each Monday evening, there was a Horizon exhibiting a documentary on science and I simply lapped it up and I beloved it. But in addition I used to be feisty, and I used to be persistent, and I caught with it. Proper. However you shouldn’t need to be tremendous feisty and tremendous persistent as a way to survive. You would simply be an extraordinary individual. It must be rather more obtainable to everyone and also you shouldn’t need to be this dogged persistent.

Katie Broendel (25:09): How have you ever seen the illustration of ladies in planetary sciences change over the previous 30, 40 years?

Fran Bagenal (25:18): 40 years? Yeah. It’s improved. It’s truly fairly attention-grabbing. I went out for dinner with a few ladies who’re on the Voyager workforce. They have been there as assist for the science groups, and they didn’t at the moment have levels, however had some technical coaching and have been employed by JPL to work on the operations facet. And we have been speaking about how that was a manner they might get in and work with the scientists in a pleasant manner. I feel that the missions, as a result of you’ve gotten a wide range of alternative ways of getting concerned, tended to be extra balanced.

Katie Broendel (25:56): I used to be going to say, are you aware of any stark variations in how possibly the topics are approached?

Fran Bagenal (26:06): Yeah. Properly, I feel it’s a cultural difficulty. I feel the issue is that this … in the event you google the phrase physicist, you will see that you simply’ll get like 160 footage of fellows and possibly 5 ladies? And in addition in the event you ask somebody what a physicist was or an astrophysicist was, they might be speaking about some a lot older white man, in all probability with hair sticking up, pontificating about astrophysics on black holes, and the assembly of the cosmos, and all this kind of stuff. Proper? If you happen to ask any individual what a planetary scientist was like, you’d have somebody who’s much more participating, extra concerned, and that’s partly historical past. It’s a cultural factor. Planetary science is new. It’s a really younger discipline. And I feel that that, it’s simply displays a extra trendy cultural atmosphere.

Liza Lester (27:15): Yeah. Planetary science. It’s just like the gateway science.

Nanci Bompey (27:18): Properly, it’s actually. I imply, give it some thought. Children, what do they get excited about? Like dinosaurs, after which they get excited about like planets and stuff. So it’s cool. And it actually captures-

Shane Hanlon (27:28): Who’re these youngsters?

Nanci Bompey (27:29): Who’re these youngsters? These alleged youngsters.

Shane Hanlon (27:31): I by no means favored house. I prefer it now.

Nanci Bompey (27:34): Properly, some individuals do.

Shane Hanlon (27:34): I’ve come round.

Nanci Bompey (27:35): Some individuals do.

Shane Hanlon (27:37): That’s truthful. That’s truthful.

Nanci Bompey (27:40): But it surely will get individuals, I feel, excited who aren’t even that science-y, once you’re like, “We’re going to ship this rocket to this far off place.” I feel it will get individuals excited.

Liza Lester (27:48): You’ll be able to drive robots on one other planet. It’s thrilling.

Katie Broendel (27:52): What hasn’t been explored, intimately but, that you’d most prefer to see and study?

Fran Bagenal (28:01): Properly, other than Venus, and Uranus, and Neptune, there’s in fact Europa.

Speaker 13 (28:08): Europa is the most definitely place to search out life in our photo voltaic system immediately, as a result of we expect there’s a liquid water ocean beneath its floor.

Fran Bagenal (28:18): And I do suppose it’s an important matter to attempt to perceive how, if in any respect, the water from the deep ocean inside which will or could not have some type of life, we don’t know, primitive or in any other case, how does that, if in any respect, couple to the floor? If it doesn’t couple to the floor, then we’re out of luck. Drilling down is a heck of a good distance right down to go. However, if there’s a way during which it {couples} to the floor, and we have to go and do these fly-by missions, the Europa Clipper, to search out out the place there could also be connections between the deep [inaudible 00:28:55] and the floor, and get a way of the higher sense of the format of the land. We’ve very crude sense of the geology of Europa. Though the photographs look type of cool, they’re very low decision in contrast with what we have to perceive and go land there.

Speaker 13 (29:11): Europa is so vital, as a result of we need to perceive are we alone within the cosmos.

Fran Bagenal (29:17): In the end, sure, it could be nice to go and scratch and sniff the floor and discover out what that brown gunky stuff is. Is it whale poop? Is it, I don’t know.

Katie Broendel (29:28): Scientific time period.

Fran Bagenal (29:29): Sure. Properly, in the event you’re going to go search for life, the place to go is Europa. Neglect chasing life on Mars. It’s not going to be something that wiggles, which is what individuals suppose once you say life. So, if you wish to discover one thing that wiggles, go to Europa.

Liza Lester (29:43): I simply wished to ask you what you suppose it’s about Pluto that’s so lovable to everybody from all ages?

Katie Broendel (29:49): Yeah, what’s lovable about Pluto?

Katie Broendel (29:52): After which when we-

Fran Bagenal (29:52): It’s small, it’s on the market, it’s unknown, intriguing. And it was stunning after we bought there, and it has these bizarre little moons which might be going round. So, I feel all of that makes it very attention-grabbing.

Katie Broendel (30:12): Nice. All proper. And Pluto loves us again. It has the little coronary heart.

Fran Bagenal (30:16): It has left slightly coronary heart. Yeah.

Katie Broendel (30:16): I do know.

Fran Bagenal (30:18): We’ll return. We’ll return. I feel that’ll be cool.

Shane Hanlon (30:21): Nanci, do you’ve gotten robust emotions someway about Pluto, optimistic, detrimental?

Nanci Bompey (30:29): Properly, I used to be type of like, meh on Pluto.

Shane Hanlon (30:30): Meh on … Nobody’s meh on Pluto.

Nanci Bompey (30:32): Ah, I do know. It’s not like, I assume I didn’t have, I used to be like … However then I went a few years in the past on New 12 months’s Eve to the fly-by of that object and the within the Kuiper Belt by New Horizons, and that was tremendous thrilling. Everybody was so excited, and Brian Could was there and did a tune, in order that was so neat.

Shane Hanlon (30:47): All proper.

Nanci Bompey (30:47): So now I adore it.

Shane Hanlon (30:47): That would depart me with some robust associations. Yeah, no, I admire that.

All proper, of us. Properly, that’s all from Third Pod from the Solar.

Nanci Bompey (30:56): Thanks a lot to Katie and Liza for bringing us this story, and naturally, to Fran for sharing her work with us.

Shane Hanlon (31:02): This episode was produced by Katie Broendel and blended by Kayla Surrey.

Nanci Bompey (31:07): AGU would love to listen to your ideas. Please fee and evaluation us on Apple podcasts. You will get this podcast wherever you get your podcasts, or at all times at

Shane Hanlon (31:18): Thanks all. And we’ll see you subsequent time.


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