#8 Malena Rice - Planet Nine, Oumuamua, Misaligned Exoplanets
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- เผยแพร่เมื่อ 10 ก.ย. 2024
- In this week's episode, David is joined by Prof Malena Rice from Yale University. Malena obtained her PhD from Yale University before heading to MIT for a year as 51 Pegasi fellow. She has recently returned to Yale, joining the astronomy faculty. Malena has been featured in Forbes Magazine's 30 Under 30 and is an expert in planetary dynamics and detection techniques.
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Cool Worlds is quickly becoming my favourite podcast. Always so calming and fascinating, and I looooove the fact that the interviewer is also a scientist. He knows what kinds of questions to ask to get a deeper understanding of these topics while avoiding getting too "inside baseball". You can really sense the passion Dr. Kipping and his guests have for this field of science and it's contagious :)
Prof Kipping is a modern day combination of Shakespear and Isaac Newton. We are blessed to have him. I had no idea this podcast existed. I am in!
This conversation shows the importance of computational resources in modern astronomy.
Malena casually mentions running batches of orbital simulations to define her search space, then doing image shift and overlay operations on potentially thousands of images, and that's just in one project.
I love David kipping's voice & the way he explains things ❤
Thank you Cool worlds for another interesting podcast . I am learning so much from watching both channels . ❤
I leave everything I am doing when I hear words like planet 9 (or planet X) :D I am sure this conversation is going to be interesting.
You must mean, ‘planet 10’. 😅
Sorry, I’m old school
@@Caliber50bmg Sure :D I tried making balance with word Planet X :D
@@Caliber50bmgwhat is X in roman numerals again🤔? 😉
It was either 9 or 10
How very brilliant and in particular what I am impressed by is the passion that is not at all affected by bias...she is a true servant of science. Great podcast!
The discussion from ~ 54:08 is interesting; It seems that octaves are nature's preferred orbital resonance, at least from current data. I can't think of why this might be in comparison to our solar system, though perhaps it's just the current configuration of our solar system which is unique.
Exactly, there is this incredible possibility of LEAVING PROBES in readiness for the unusual!
So glad this podcast is also on spotify! This is my introduction, but im already certain im going to love it. Cant wait for all the great stuff to come. Congratulations.
It's a joy to learn from this channel. I feel very grateful 🖤
This was a wonderful conversation!
2005 was the announcement of Eris I think. David seemed to be searching his mind for it when talking about the timeline.
Oumuamua just swung by to check on the whales and since we still have whales it didn't stop to bother us 🖖
I thought Oumuamua was sort of sitting there and we (the Solar system) swung by and pinged it out to somewhere else in the galaxy.
@@saturdaysequalsyouth Local standard of rest.
@@zapfanzapfan That’s the term I was looking for
Love this podcast, very happy to hear one so focused on Astronomy, great job prof Kipping!
Very good podcasts as well as Cool Worlds Lab channel. One of my favorite channel on YT. Please do more podcasts Professor ❤
Wow, she’s incredible, beautiful, and so articulate! She’s truly someone us fellow astronomers should look up to. I can’t wait to see what‘s in store for the rest of her career.
She's not as pretty as Kipping 😂
@@simontmn I think she's much prettier. Which isn't in any way objectifying, because Dr. Kipping isn't pretty to me. He fits what my image of a hunk is though, if that's what you meant. 😄
@@thepiper5522 😂
@@thepiper5522nah, @simontmn is right. He’s way prettier. He’s definitely a pretty mofo! 😍🤣
@@simontmn😂
Awesome episode 😃
Thank you for this. Great watch.
Really informative and enjoyable. Thank you.
AWESOME podcast.,thank you .
Thank you for another very interesting podcast =)
Could you provide the links to Prof. Rice's website? This was so interesing, would like to read a bit of her work.
Added! It’s www.astro.yale.edu/malenarice/
@@CoolWorldsPodcast thanks :) btw love your Podcast, keep it up.
Great episode!
I'm currently doing my MSc project in Gravity Darkening in Exoplanet Transits with Dr Fossey, who I'm sure Dr Kipping is familiar with.
Prof Rice's papers on obliquities of hot and warm Jupiters have been super helpful, so thank you!
Say hi to Steve for me!! Good luck with your project, sounds interesting
Love your podcast !
That was so interesting, Thank you Dr Kipping
Excellent and so involved!
Looking forward to hearing any discoveries that come along whether it is from near Earth asteroids, new outer planets and comets, interstellar visitors or exoplanets, exomoons, rogue planets etc. There's no end to learning about what is out there!
Incredible that exoplanet orbit inclinations relative to the star can be worked out!
Great interview and overall wonderful start to your podcasting career. Looking forward to further discussions that bring forward the details of how science is advancing. As outsiders, we tend to get the packaged output, dumbed down. Understanding the observation methods, the data quality, the heuristics, the progression of advancements, all put these discoveries into context.
Great talk, keep up the good work!
Great podcast! I think the term being looked for to describe “tilt” was “inclination,” a term used earthward to describe the angular displacement of an artificial satellite’s orbit from the terrestrial equator. Thus, perhaps, an exoplanet’s “stellar inclination?” Somewhere in memory I seem to remember this is an issue studied w/respect to a star’s rotation relative to the galactic plane as well.
Can u help me (a layman) put into context the Avi Loeb expedition to test possible interstellar material from the ocean floor? His many haters discount the government data atesting to interstellar velocity and do what to me seems like gymnastics to ignore the methods and preliminary findings... Is there at least a hopeful wait and see attitude about that mission possibily finding interstellar material or should I take more seriously his foaming at the mouth critics?
I’m trying to keep a balanced approach to this and listening carefully to both sides. I’m sure Avi will respond to the latest criticisms formally in a paper, so I’m waiting for that before jumping the gun on the latest swing in the debate.
Is she the first exoplanets professor born after the discovery of exoplanets?
It would be fantastic to use an object like Oumuamua as a carrier for outer solar exploration.
How risky would interstellar travel be if there are more objects of that kind out there? Or is that still extremely unlikely to hit one?
Extremely unlikely to hit one, but how unlikely is unquantifiable at this stage. But if you did hit one you'd never know about it!
Still very unlikely. Space is BIG.
This is gonna seem very off-topic but I love diversity in accents and the way we say words. There's a gaming TH-camr (Max dood) who says outlier like outleer and nobody has been able to tell me where it comes from. Everyone says it's just a thing he does. You're the first person I've found who also says that? Do you have any idea where you picked it up, if your family said it like that etc?
I wonder if it's possible to sail on the surface of Uranus... If it's warm at the core and cold at the edge of the atmosphere, then somewhere in the middle there's got to be a sweet spot. Plus, I hear the gravity there is pretty decent for an Ice Giant. 'Seems like a good place to send a space-ship.
Love how he randomly starts in a sauna in his dressing gown.
Haha it’s a shed but was hoping for better acoustics!
Could have Scholz's Star (and his potential planets) caused the chaos in the outer Solar System, about 70.000 years ago? When I remember correctly, the red dwarf did get pretty close to our Solar System.
It's a Kempler's rosette of earths, edge on.
I'm early on in the podcast, so if this is answered in the episode, I apologize.
Is there a sort of "best bang for the buck" with instruments similar to TESS? By that, I mean would it be much better for data gathering (and finances) to have several instruments somewhere between the price range and capability of Hubble and TESS? The Hubble's lense is about 240 cm, while the TESS is about 10 cm. The Hubble cost is about $16 billion, while Tess is $200 million. Would the proverbial juice be worth the squeeze to develop 20 or more $500 million instruments all with similar purpose?
I apologize if my question sounds silly.
seems a bit surface level. Barely touching the oumuamua or planet 9 debates. But she seemed very open to diving deeper and clearly knew more than your questions allowed her to display
This is a podcast for everyone.
Planet 9 could easily be what is now the Asteroid Belt, which is the remains of the planet Tiamat Her largest moon, Ceres, remains intact and is the largest asteroid. We're starting to see evidence of this with the return of sample material from asteroid Bennu by the Osiris-Rex mission. Initial appearances are of this being clay, gravel and water, formed by geological processes rather than primordial material, which is what the asteroid have always been considered to be: building blocks, as opposed to rubble.
Or there is O'ha'lu which is known to the United Federation of Planets. Aphelion: 190.4AU. Perihelion: 152.7AU. Large planet with a high density, size approximately 4 times that of Earth. Location at the outer edge of the Kuiper Belt. So it is known to exist, something that huge. If only space wasn't quite a lot bigger.
but what should we name planet 9 though?
Great video! However, I think Prof. Rice's frames have not rendered properly
You mean the color grading? That’s the only thing I notice slightly off
Oumuamua demonstrated an electric universe, connected by plasma filaments that hold an electric charge. Velocity is governed by local differentials between the body and the electromagnetic field lines. "Everything is electric," Nicola Tesla. Planet nine theory is dependant on Newtonian gravity which to this day, is unsupported with a mechanism in particle physics.
Could the planets that orbit the planet in opposition direction or in an odd plane, be a hint of a captured planet. Similar to Triton of Neptune.
I'm assuming these planets would also have different chemical properties from the other planets which would also state a captured planet.
I think so, but I'd guess they could also be captured from a collision within the same solar system.
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Field effect atmospheric Geiger muon prism? Scifi?
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really enjoyed the last two. Just the perfect length. Although I would prefer around 1:30 to 1:45 for podcast length.
I want Malena Rice to find Solar System planets and interstellar objects but I don’t know finding them will make us feel safer or less safe.
Oumamuma was technically stationary & WE ran into it ?
It was stationary in its rest frame. It’s all relative!
@@CoolWorldsPodcast Lol i had to look that up.I always believed that it was not moving at all and we ran into it but it was moving but not accelerating? Sorry if that don't make sense.
@@mickeymcdoogle119 AIUI, it was orbiting the Galaxy center at pretty much exactly the average speed of all other stars at this radius.
We are doing a little faster toward Lyra.
As our solar system approached, Oumuamua would begin falling in toward our gravitational well, accelerating inbound and decelerating outbound.
This outbound deceleration was just a little bit less than what was computed from it's previously established Keplerian 'ballistic trajectory'
Does a US promulgated law on UAPs provide enough evidence to believe?
Well a UAP is just something that’s unidentified, so I don’t think many scientists would accept that as even particularly relevant to the discussion of life in the universe
Planet 9 eccentric orbit through the solar system...my mind... intro to Thundar The Barbarian 😮 OOOKLA
Don't understand why "is the solar system common"? is a loaded question. Why the wink and nonanswer?
Prof. Kipping is the GOAT. Would love an ep with NDgT
She is one of those--- "Yeah, so...." people = )
Yes! First view and comment 😅😊
🎉
I wish I was clever 😢
Regarding the fact that apparently especially hot Jupiters that are close to their star and are moving within different orbital planes around their star than the plane of the axis of rotation of the star, I have a potential explanation hypothesis of which I'm not sure if it may have come up before and which I'd like to bring up, namely one that's based on the gravitational attraction on planets of via coronal mass ejection ejected vast amounts of plasma from the star that passes close by such planet, which should happen more likely and more frequently over astronomical times for planets close to their star after all, and given that stars can become enormously huge monsters in size compared to even the largest of brown dwarf gas planets, it seems plausible that in extreme cases, even their coronal mass ejections (or flares also) that just constitute tiny fractions of the total mass of a star could act with considerable gravitational pull on them. However, I suppose that if this were a process that'd skew a formerly to the plane of the star's axis of rotation aligned planetary orbital plane, then (if the planet's mass relative to the mass of the star is high) it'd have to happen step-wise for the case of large plane inclinations, in which coronal mass ejections would have to have passed close to the planet on the same side repeatedly. And I guess if such phenomenon could also very effectively pull on close planets, then it might also be able to keep such planets' orbital planes but instead speed them up to move further away, or slow them down and possibly make them fall into the star, depending on a coronal mass ejection's mass passing in front or close behind a planet in its trajectory, and similarly so for changes in the eccentricity of a planet's orbit. Though such process should then also be able to revert large plane inclinations (of this kind) to smaller ones (besides heating up possibly already ancient, cold close-by planets if the plasma were to hit them directly).
Actually, on this topic, I had another curious idea or question, namely if a red dwarf star (that barely has the required total mass to be a star in the first place) could via flare or coronal mass ejection even turn itself back into a brown dwarf gas planet if the amount of mass that it lost that way was just too much, so that the gravitation from the remaining mass wouldn't suffice anymore to cause the nuclear fusion in its core. That seems to be an interesting concept to investigate, especially since there have been observations of stars suddenly disappearing and not appearing anymore so far, but then again, the chance of observing such an in a star's entire astronomical life-time rare event should be minuscule.
However, if there might be a certain regularity to the frequency at which red dwarf stars have coronal mass ejections (or flares), then for some of them, in the long run, it might be even possible to predict the rough timing of their eventual last fiery breath before their light expires, until possibly igniting later again after some delay, once the lack of a heliosphere allows gas to fall back in again, or if other massive objects were to fall into them. And I guess for red dwarf stars for which this may have happened in the past but wouldn't be visible anymore if they since then reignited, it could affect estimates of their age and for how long they may be able to burn, because if such coronal mass ejections (or flares) were to be a consistently enough kept phenomenon, then that might mean that red dwarf stars may reduce their total mass further and further until their nuclear fusion expires, and given that they are expected to otherwise burn for trillions of years, such long time-spans should provide a possibly long enough time window for such process to end their time as stars prematurely.
And actually, I think one could generalize such hypothetical phenomenological possibility to heavier stars and the critical points in their development at which they'd start nuclear fusion towards the next heavier elements, where coronal mass ejections shortly afterwards may be able to undo that and move them back to the previous stage but possibly with then altered behavior besides a delay in when they'd reach the next stage.
What if Planet 9 has moons? 🌖
G'day david. I'd like you to have a listen to dave rossi speak to AShton forbes on his new hard truths podcast to see what you reckon of some of the speculation of alternative physics explanations for some strange footage.
Hugh credibility drob when neither of you had a clue about Voyager.
Oort cloud…. So humbling, weve havent even sent probes to all planets, yet we assume no life is there, fermi paradox asking why we dont see life, yet we cant even know if theres an oort cloud… perspective people
I think the guy in the Expanse with his Epstine drive is heading that way..
Pity he,s dead as he passes at constant excelleration...
Consensus isnt evidence so keep on looking!
To me, the "rare Earth" view is more must a matter of establishing what we Know. (Or "know more".) It's easy to be blinded by "the obvious", and it's just a good idea to go in search of what hides away right in front of us (the easiest things not to notice). As soon as it drifts into the supposition that having a planet like ours in some life form's history is essential, it drifts away from what makes it a valuable thing to contemplate occasionally.
What if a life form had to evolve from a carbon chemistry (and maybe in the kind of test tube we got cooked up in, even), but reached a level of technology where it could start replacing its organic carbon parts with manufactured silicon ones? (So evolution tends to eventually take a self-directed turn). What if that could be pushed so far that the whole organism's functioning could be translated into new physical forms?
If (this speculation is necessary, maybe, when you push beyond the limits of what we currently Know - for sure - ish) ... If that was the case, life signatures could transform into something we would find hard to recognize. So maybe to find civilization you need to find evidence of the end of agriculture. (In the realms of what we don't yet know, there are so many possibilities that we probably need to acknowledge to some extent that we don't know what to look for. Intelligent life might ultimately mainly exist in places that are biologically sterile.
But if we're going to assume carbon biology, we're to some extent just stuck with what we Know, if we're not going to pursue the "silicon cyborg" angle everywhere, too.
If we translated ourselves to silicon and other things we've not yet imagined, the one thing you'd expect to no long need is food. A think that you can imagine as being "you" might be out there, only needing its fusion plant to exist in interstellar space, on some million year "weekend field trip" to an interesting little patch of carbon life it detected at last millenium's astronomy club meet. If it had no desire to go and eat that carbon life (something at least some humans would give first consideration to), it might be driven just by curiosity.
Humans are so unhappy on Earth that we wish Aliens would visit us and destroy us.
You were real nervous about the alien question, like you don’t want to seem stupid. That’s the problem right there…
So, what was your reason for commenting? Do you believe in fake phenomenal experience?
What is experience? What makes experience phenomenal? Is experience itself a phenomenon?
Is Phenomenon on Amazon? I liked that movie
People should be careful when taking about aliens because the evidence isn’t credible. At this point, believing in aliens is a preference issue, not a scientific one. It’s almost like a religion, which can be problematic when mixed in with science.
Why do you say fake?
@@robertritchie2860 Because it’s make believe
The Ort Cloud is a theoretical concept its never been seen nor any evidence of it exists, but yet yall keep talking like its a fact
I was thinking the same😅
all long period (orbit greater than 1,000 years) comets are logically from the Oort clod
@@friendlyone2706 logically a theory still
@@geemanbmw The long range comets are a reality. The quantity is definitely in the theory category. If as many as most claim, we should see many more extreme range comets than we do.
@@friendlyone2706 No. The Oort cloud is theorised to be up to a couple light years radius, with comets taking millions of years to arrive in the inner solar system.
Meh ....
Avi Loeb is not some kook who was just throwing words around. He is a brilliant astrophysicist and saw that the data didn't fit ordinary objects.
Planet Nibiru