Alien Civilizations, Exomoons, and Cool, Habitable Worlds | David Kipping

[@DrBrianKeating]

*_Reminder - you'll get exclusive content from this amazing episode including a Custom AI Chatbot trained on the transcript and a exoplanet-ton's worth of related resources when you join my Monday MAGIC Mailing list_* briankeating.com/yt

[@XXplosiveUK]

Professor Kipping is awesome. I have followed Cool Worlds Labs for a long while now and I love finding videos of his conversations because he only speaks to other great minds and doesn't use click-bait or talk BS and I admire how articulate he is. Lots of his content is almost poetic and he makes science accessible and easy to understand.

[@DrBrianKeating]

Couldn't agree more!

[@YayComity]

But it's sad that anyone would prefer Elon Musk as a guest.

[@XXplosiveUK]

@YayComity it's because of his high profile. Elon is an equally very clever man as David, just in totally different field. One does not simply get to where Elon is with just luck alone. Also, I do believe that Elon will play a huge part in our space exploration advancement, possibly more so than some space agencies.

[@Bill..N]

Nice.. I just learned 10 times more about what David does than I knew before.. I'll HAVE to watch him more often now.. Engaging interview for sure..

[@DrBrianKeating]

I am so glad to hear that

[@marksollner5942]

David and Brian, you're both brilliant communicators, and I love your work on KZbin. It's so good to see you both together in discussion. Thanks very much for spending time away from your research to give us your views on the universe!

[@DrBrianKeating]

It was a pleasure to have David on the show!

[@RWin-fp5jn]

Yes, I agree with many comments that it is an absolute joy to listen to both who are at the forefront of their specific fields. There is just one thing bothering me though; I think neither fully appreciate just how extremely old the current dominant theories of cosmology and astronomy are. And how much they are being held back in their potential as a consequence. We shouldn’t cling to old theories made centuries or even half a century ago, at a time when less then 0,1% of all relevant observations where known. If we would have had the images of Hubble ST, Spitzer ST, JWST 50 years ago, I am certain we would NEVER have come up with the old theories we are stuck with currently. Not for Cosmology and certainly also not for Astronomy. Thus, we are now trapped in generating ever more need to constantly tweak and adjust our old theories whenever we find new and inconsistent observations. We need a radical reversed engineer re-thinking based on latest data alone. Take the discussed Theia Theory which dates back to 1946. This somewhat ‘handwaving’ and contrived theory might have made sense back then to explain isotopic similarities between Moon and Earth. But now in 2025 we(can) know that there is an (observed) alternative process of binary terrestrial spheres actually forming inside protostellar jets. Protostellar jets were not known to even exist back then. Do we see the conundrum here? Also back in 1946, the scientific consensus was Earth was the only planet with water, suggesting any ancient collision between terrestrial planets (and moons) would be close to fatal. Well, now we know (e.g from the Trappist system) that all terrestrial planets by default appear to start out with ice layers of up to 20% of radius (as evidenced by the still intact moons of Europa, Enceladus and Ganymede). With such ice layers a collision between e.g. our Moon and Earth has total different dynamics; Our Moon (impact site SPA region) would likely have lost its ice layer completely absorbing the brunt of the impact energy, explaining why it got exposed to LHB damage later. Earth on the other hand would have sustained a material dent in its ice layer, leading to severe rotational imbalance which in turn would lead to land-ice heat convection which in turn would melt the lower ice layer into liquid water and sustain it. This explains the ‘Faint Young Sun paradox’. And in these early UV free caveats life indeed would have its origin, separating the waters above (the ice layer) from the melt water below as Genesis so aptly describes it. We really need to rethink all of our old theories.

[@ozzycrabs]

This my new favorite universe channel but nothing beats JMG

[@ditjow6]

Brian, you're the best! Keep up the good work! 🎉

[@DrBrianKeating]

You're the too kind ! All the best!

[@Mike93527]

In addition to the dedication in his professional work, David is an incredibly talented narrator, communicator in his videos. His passion and curiosity comes through in how he speaks. That is in addition knowledge and the questions he puts forth in his videos. I absolutely love them. They are so thought provoking. Really appreciate his effort. Thank you David!

[@DrBrianKeating]

I agree he is a fantastic communicator!

[@glennscott8622]

Inspiring the young and giving them access to real scientists is invaluable

[@peterz53]

@43min on media: Even as a layman I want to hear directly from the scientists, whenever possible.

[@quackyduck1499]

Two of my favourite scientists together on the one show. 😊

[@brianmould7250]

I love your verbal asterisms, much love, from England. x

[@DrBrianKeating]

Appreciate that Brian

[@RWin-fp5jn]

Nice to discuss (terrestrial) planets and solar system formation and Dave does an excellent job to promote the subject I think. I do however think that when discussing the origin of terrestrial moons and planets, it is time to let go of the dominant but ancient 18th century Nebular Hypothesis and its NSDM version. We now have detailed images which allows us to reverse engineer the actual processes. From this, it follows that gaseous giant planets like Saturn and Jupiter indeed form inside the protoplanetary disks (PPD), but all terrestrial planets and moons definitely do NOT. They all form out of silicon based space debris and dust sucked into the base of protoplanetary jets which reach temperatures in excess of 10.000K. Molten into their elements, they periodically get catapult upwards in the proto stellar jets, spinning into so called ‘Herbig Haro (HH)’ knots. Slowing down their spin, heavy elements sink to the core whilst lighter elements (e.g. oxygen) rise to the surface where they react with the jets hydrogen to form giant water (vapor) layers. This is how Earth got its water. As for the formation of our own moon; in some HH knots two spheres can be seen forming out of the same material explaining our isotopic similarities. KZbin has a time-laps video of Hubble HH34 where at the outer most knot two such spheres can be seen forming out of a single knot explaining isotopic similarities. Finally, at their tips, the ionized jets typically change from collimated to spiraled shaped, forming a bar magnet field. This will oust all proto spheres (having their metallic cores prior magnetized by the ionized jets) and bend their trajectories straight back to the PPD! At Hubble image HH24 zooming at upper jet tip, one can observe some knots getting ousted. These terrestrial proto planets next cool down, freeze over and get curved straight back along the magnetic lines to the PPD where they migrate outside-in towards the star trough the PPD. This, by the way is what caused the Late Heavy Bombardment; It was our own inward motion crossing the stable orbiting debris causing it. 99% of these terrestrial spheres end up re-absorbed by gaseous planets or by our Sun. Some who don’t make it back to the PPD end up as interstellar rogue planets. Only very few survive as moons or in stable orbits as planets around our Sun. We were lucky. This is the Earth-Moon origin in a nutshell…We need to up our game…

[@mattfiguresitout]

Two of my favorite space nerds. Terrific convo, thank you!

[@DrBrianKeating]

Glad you enjoyed it!

[@tnekkc]

65 years ago "the golden book of astronomy" and "introduction to algebra" were in my primary school library.

[@Fgm1m2R2]

Excellent discussion Dr. Keating. I really like David's insight. 💯👍.

[@DrBrianKeating]

Glad you enjoyed it!

[@tommiest3769]

@@DrBrianKeating Thank you for hosting one of the greatest living scientific minds and educators of our time!

[@DrBrianKeating]

@ agreed

[@b4se16]

congrats 300k subs!

[@DrBrianKeating]

Thanks very much 🙏

[@JeffreyMoyer-ms7nv]

46:00 This was a great part of the interview describing your code of conduct regarding your large audience. Fascinating. Love both of your channels!

[@DrBrianKeating]

Very much appreciated 😀

[@zach_diecast_mansur]

LOVE the Lex Keating podcast!

[@ritalewis1021]

Ty fo such r informative, inspiring and enjoyable podcasts.

[@DrBrianKeating]

It was a pleasure having David on!

[@TheHoveHeretic]

Along with the steadying effect on Earth's rotation (and ever since the discovery of volcanism on Io), I've occationally wondered whether the tidal effects within the Earth - Moon system may have kept our own magnetic field stronger than it perhaps would otherwise be?

[@DMichaelAtLarge]

How to remedy the unfair advantage dilemma of being a podcaster or KZbinr: When a colleague objects to your criticism of his work, do a follow-up episode discussing their objections and presenting their perspective. Or even invite them as a guest.

[@disconnected22]

PARALLAX NICK. Worth a sub.

[@RichUniverse_]

My two favourite people ❤🎉

[@DrBrianKeating]

Wow Thanks !

[@Speedy636Germany]

Bookmark 19:21

[@CopperCooper420]

Maybe the real exomoon discovery was us discovering our shared love for astronomy and cosmological questions? 🤗🌕

[@DrBrianKeating]

I like the way you think!

[@victorgarciasilva8183]

Hi Brian, would it be possible to activate the automatic youtube audio transcription to spanish or another language, the whole world will thank you for it.

[@TheHoveHeretic]

@@victorgarciasilva8183 I had no idea KZbin had such a facility. Too busy laughing at the CC's "interesting" attempts at Welsh toponyms I guess!!

[@zach_diecast_mansur]

34:24 Moon BBLs.

[@Freddie_Dunning-Kruger_Jr.]

7:30 ive always thought the earth may have absorbed some of Theias core that helped earth have a stronger magnetic field than it should 🤔

[@Nik531]

It seems. if we will travel long distances. we will need 4 X life spans. just to make the one-way travel

[@TonyMountjoy]

lol Joe Rogan smoked it! lol

[@BambiDextrous]

I hope you got more out of the discussion than that.

[@petarswift5089]

They glorify spectroscopy, but spectroscopic papers for Venus up until the middle of the 20th century are pure comedy.

[@pwagzzz]

The Universe does nothing by one's

[@gosekinz]

I think you're more likely to find a binary planetary system before a "standard" model.

[@rand_longevity]

nice!!

[@danrayson]

There's no paradox once you've seen them.

[@stephenjimenez6129]

As your street producer, lay off the adderall or caffeine. Relax, take a beat or two and breath, think before you speak. With that said continue with the good work an I’ll see you in my office at 17:00 hrs.

[@BambiDextrous]

He's far too hyper and scattered for my taste. I have to change channels now.

[@eddenz1356]

Do EXO moons solve the problem of their tidally locked planet? Their revolutions act like day night cycles.

[@RandallSchwed]

The moon of Manakoora filled the night With magic Polynesian charm The moon of Manakoora came in sight And brought you to my eager arms The moon of Manakoora soon will rise Again above the island shore Then I’ll behold it in your dusky eyes And you’ll be in my arms once more.🌕👽

[@RATLEEA10]

With respect, you are either blind or purposely disregarding what's taking place right now? while at the same time asking the question "Are we alone" but not enquiring as to what is being seen, and when i seen, i refer to persons like a Sheriff in an isolated area of the US having a 50ft Orange Orb sit directly over his head 100 ft up, and these are not isolated cases, we had F15s scrambled to intercept Orbs in the UK over Lakenheath RAF/ USAF Base and as the jets closed in the Orbs shot away in the blink of an eye, would that not suggest to help answer your question you should enquire? The breadcrumbs are huge right now, so much so it is akin to the theatre production held in the 1800s where in the middle of the production an elephant was walked across the stage, after the performance the audience was questioned did you see the elephant? only a very few people saw the Elephant, Orbs are worldwide and they are becoming more and more obvious every day, your thoughts?

[@mgscheue]

@@RATLEEA10 interesting that they are “worldwide” and yet there is zero good evidence of such a thing. I wonder why… .

[@busybillyb33]

I nominate Dr. David Kipping as the sexiest astrophysicist alive. Sorry Dr. Keating, you have got to hit the gym a little bit more and start talking British to challenge him.

[@DrBrianKeating]

That’s the plan 💪

[@Pisti846]

I wonder why he had to bring up Musk?

[@TheHoveHeretic]

If nowt else, he's proved there have to better ways than eating him in the first pl..... Oh, right .... sorry, misunderstanding there!

[@CaneBTC]

Oh its a real channel? I use it to fall asleep, hes got a mkultra voice

[@lurgee-yh8ej]

th e== best

[@mikev751]

Sabine is the worst

[@ZagrosŞêxbizin]

Dr. Keating, I often hear you say how scientists have a moral duty/obligation to share exactly what it is that they do and how because, in some sense, they owe it to the public due to the funding. I respectfully disagree. The science community doesn't owe the public anything. In fact the public owes the scientific community for every single discovery that was made. In health, biology, physics, engineering. Without scientists and those who made the discoveries, we'd be crushing wheat with rocks and riding horses on bad saddles and muddy gravel roads. I still think the scientific community should do their best to communicate what it is they do and why, not because its a duty or because they owe it, but because it is just good to have an informed and enthusiastic public. And because I've heard you say it, Gavin Newsom is not your boss, you are his boss. Your boss is the universe, physics!^^

[@DrBrianKeating]

Thanks for the sentiment But unless they’re independently wealthy all scientists do have bosses

[@RicardoMarlowFlamenco]

@@DrBrianKeatingyes. That is why the billionaires all pretend to be physicists…. Lately

[@thomchristensen990]

Name drop Rogan three times in a mirror and he will appear to leave you 250 extra views.

[@lacasa3514]

David Kipping looks like a Hollywood version of a scientist. Or rather, he makes silver screen scientists look like a cheap version of himself.

[@ltgrt7606]

science is dead (but i love the magic super massive black hoaxes and the fantastic string theory, or the big BANG) . maybe we just can't do it to the next stage. Science and medecine have gone absolutely out of realities and sadly definitely. Gone on side roads from which we'll never, ever come back. 😢

[@silberlinie]

It is strange that some people make a category error that is actually easy to avoid. Some people think that their fast speech can be interpreted by others as a sign of intelligence. What an embarrassing error. Because, as we know, it is simply a pathological language abnormality. It manifests itself in the fact that the mental production process of word, content and sentence generation is not sufficiently controlled so that the physical language tools are able to keep up with the actual acoustic articulation of the mental stream. That gives food for thought.

[@frhernandezc]

There is life in the universe, in the earth. We are searching for ANOTHER place with life, so that would be expecting because this is not a universe full of UNIQUE thing. So life in other place is only a mind changing thing only for religious people. For other people is what is expecting.

[@thisisitwithgageb.2733]

Lol Im very religious Jewish and mainly hangout in religious spaces I've never met a religious person who thinks we are the only life

[@snarzetax]

@@thisisitwithgageb.2733 I've met lots of them

[@quackyduck1499]

Have you ever read the book of Enoch?

[@chiaeagle6720]

@thisisitwithgageb.2733 it's more an American Evangelical thing about Earth being the only life in the universe. Not a universal belief amongst them but pretty common. Also tends to be the default assumed stance about religious people due to its prevalence.

[@Chris-vb1xe]

@@frhernandezc do you not know what extraterrestrial means?

[@benellison5668]

It's so hard to trust Brian Keating on issues of life in the universe when his dad had the job in the Government in the 1960s to limit public knowledge of the same.

[@gregoryhead382]

2π β = energy of a photon wavelength the size of the visible Universe × t_BB (time after Big Bang for the strong and week nuclear forces to separate) In general relativity 2 pi quanta of action for geometry spins Einstein as versed in photons.

[@dinofx35]

11:50. A bit sexist to assume that a research assistant is necessarily female.

[@JackBrookes-gw5wh]

@dinofx35 computer systems are usually given female names. Nothing sexist just bizarre convention

[@BambiDextrous]

He mentioned her name.

[@alex79suited]

Uninformed is all. Your goal should be to become important enough for the government to want to involve you. Space the final frontier to go where no man has gone before ( theme song here). Peace ✌️😎.

[@tysonquock7688]

How about Exo Worlds? There is only one Moon.

[@briankeating3365]

hi

[@DrBrianKeating]

How did the moon influence life on earth? Win a meteorite briankeating.com/yt

[@Joshua-by4qv]

It was the inspiration for Pink Floyd's classic album.

[@omergaudetjrpackers4life]

We always hear about all these "earth like" planets that could sustain life. But we never seem to consider how important our moon is to life on earth? Maybe these planets cannot sustain life without a similar moon? Why is the significance of our moon never factored into the equation? Certainly we could not have life as we know it without our moon could we? Without the moon the climate would be sheer chaos on this planet! It also very strange the properties of our moon which seem out of place? Our moon is the biggest in the solar system relative to the size of its planet? Certainly there are a number of anomalies about our moon difficult to explain. My point of view is that without our moon it's unlikely life develops as it has! Could this be the reason we not see the rest of the universe teeming with life?

[@zach_diecast_mansur]

@@omergaudetjrpackers4life Ooooh, sorry, no meteorite.

[@floatthecreek]

@@Joshua-by4qv "I'll see you on the dark side of the moon."

[@garrett6064]

1. Making tides to mix up water & elements. 2. Keeps Earth stable so it doesn't wobble and cause massive climate change. (This is more important for advanced life) 3. I suspect it keeps Earth's plate tectonics more active, which helps life in a couple additional ways. Edit: I wrote this before I watched the video. I didn't know about the thickness of the mantel. I believe that the gravitational stresses on the side of the Earth facing the moon keep the mantel more active. I've not heard any scientist say this, I'd like to see it modeled.

[@eddenz1356]

Do EXO moons solve the problem of their tidally locked planet? Their revolutions act like day night cycles.