Ganymede: The Solar System’s Largest Moon

[@geographicstravel]

Check out Squarespace: squarespace.com/GEOGRAPHICS for 10% off on your first purchase.

[@michaelmayhem350]

Simon we need DTU March 8 1994, also in your squarespace read you forgot to mention its a closed proprietary system so its impossible to move a website built at squarespace to any other host.

[@russ4550]

That beard getting a little too dummy thicc bro you ought to trim that a bit man 😂

[@russ4550]

In all seriousness brother... It doesn't match your head anymore, looks pretty weird, and is initially distracting.

[@AlexanderTheGoodEnough]

Ganymede, you think you can moon the biggest? challenge accepted! going to hide my ass from the sun this next year that way it will become so white the glare from its reflection will blind anyone who dares look me in the brown eye.

[@danowens7145]

7:17 proof of life on ganymede!! I just seen alien birds fly over the surface.

[@silvernova354]

Mercury and now Ganymede - thanks for all the solar system stuff lately!

[@TheSkytherMod]

I don't know if these kind of videos do particularly well but I hope you continue making them. We're in a whole new era of space exploration and to hear about all the potential things there are to discover kind of gives me hope for a better future in a world where we've had such a bitter past.

[@Overworkedandunderpaid]

SPAAAAAAAAAAAACE!

[@adamboise3907]

Simon is a huge space nerd, so I doubt he'll stop making these videos as he's really into this stuff. Huge win for the rest of us who are also into space stuff. The future is the best.

[@mattthepolarbear]

My favorite of all Simon's channels

[@bitemacauk]

Very true AMAZING time for space exploration.

[@MrEnjoivolcom1]

These space related videos actually do fairly well.

[@AceSpadeThePikachu]

With all the media attention around Europa, Enceladus and Titan the past decade, it's refreshing to finally see the extremely underrated Ganymede get some time in the spotlight.

[@2006gtobob]

Did anyone notice the greatest find of all time? It appears that bird-like creatures are flying over the ice of this moon! 7:15. Wow! And Simon didn't mention it!

[@phxtravis]

@Sam Samson Proof that birds arent real.

[@mariyamwaniki]

​@@phxtravis😄

[@jefffiore7023]

Your multiple channels have been an escape for me in rough times recently; thank you for such quality educational content across so many spectrums of information

[@MurraySteel3.14]

Please do cover Neptune! There are so very few videos that truly go in depth.

[@monckey44]

crazy timing, I was researching jupiter and saturn’s moons yesterday. the sheer size of jupiter’s satellites is amazing

[@Subzer039]

How do you not have an "Astrographics" channel yet?

[@JasonSighn]

He has enough channels.

[@Subzer039]

@@JasonSighn never. He's the Galactus of KZbin channels

[@imperfectly-balanced8861]

@@JasonSighn blasphemy 😤 Simon would have you chained to his basement radiator for merely thinking such things!

[@ajstevens1652]

@@JasonSighn Choose your next words carefully. They may be your last from outside the basement.

[@xyz7572]

I mean, this channel practically is, at this point :p

[@masamune2984]

Love all of your videos, on all the channels, but I particularly adore these astronomy/space-related videos. Thank you 🙂

[@NikkiMusic]

I was not ready for the Jojos reference in a Geographics vid, but I loved it.

[@slmanimates231]

I'm glad it wasn't just me that spotted this, I was doing a word-search of the comments to see who else took something more form this video lol!

[@aubreezeppeli1726]

It caught me off guard but I'm glad I wasn't the only one that understood it!

[@ignitionfrn2223]

1:30 - Chapter 1 - Planet sized moon 5:05 - Chapter 2 - Into the abyss 9:00 - Mid roll ads 10:15 - Chapter 3 - Caverns measureless to man 14:00 - Chapter 4 - A history of discovery 18:10 - Chapter 5 - A juicy mission - Chapter 6 -

[@elisajacktravelasia2479]

@14:00 Jojo reference 😁

[@cygnus1129]

11:53 creepy alien trigger warning 😅

[@DerptyDerptyDUM]

🌌ASTROGRAPHICS🌌 ....the greatest channel on KZbin. 🥰

[@laughingoutloud5742]

I second that

[@russ4550]

Imagine actually getting a probe there capable of actually digging though enough ice to see the water and dive into it... That mission would be absolutely awe inspiring

[@sasharae99]

I appreciate your videos, they get me through sitting at work during the mundane moments! These are great to listen to, always so interesting ♥️♥️

[@arome5901]

My favorite moon way underrated and not enough spotlight. Thanks Simon

[@stalkerorstalker]

Or sunlight

[@arome5901]

@@stalkerorstalker good one

[@goodone5590]

For me its Titan, it has an atmosphere

[@alexbowman7582]

Jupiter’s moons once had military importance. Back when clocks were inaccurate the Jovian moons could be used as a clock thus allowing ships to more accurately position themselves.

[@cypherbrittainnethegodofsl4988]

Ganymede is bigger than Mercury, but it's mass is less than half of Mercury's mass.

[@rafaelbrisolara7599]

It makes sense. Since Ganymede is greatly made of ice while mercury is one of the most dense metallic planets in our solar system.

[@Dr.RichardBanks]

I'm just a _Massive_ fan.

[@raidermaxx2324]

well mercury is almost just an entire iron core as opposed to an actual planet

[@Dr.RichardBanks]

@@raidermaxx2324 that's pretty *_METAL_*

[@Vjx-d7c]

@@Dr.RichardBanks ba dum tsss

[@Beryllahawk]

Great video! I'd never heard of the "club sandwich" theory before and you're right, someone was both very clever and VERY stoned when they thought of it. But it'd be so freakin' AWESOME to be able to prove it was correct!

[@stephenbrand5661]

It's the same way Ganymede's interior is portrayed on every piece of media out there apart from the name, never heard it called club sandwich or whatever until this video. It also happens to be the primary reason why Ganymede's ocean isn't as good a candidate for life as Europa or Enceladus.

[@DavidMorris1984]

Brilliant video. Reminds of why I've loved space since I was a child. The sense of awe and wonder is just part of it. There's also the huge achievement of creating something that goes to another world and makes a major/history changing discovery. All of these steps we're taking now will help us to sustain humanity and to gain a greater understanding of the universe. It's a shame that more governments don't give this the level of importance that it deserves.

[@pamelamays4186]

Your writers (aka, Blazement "guests") definitely write with your personality in mind Simon. That goes for all your channels. You sir, are an amazing presenter. The BBC just might snap you up someday. As for your writers it wouldn't surprise me at all if some of them become KZbin creators in the own right. Your CasCrim writers have the skills to branch out into writing entire true crime novels.

[@mirzaahmed6589]

Why would he want to work for BBC? I'm sure he's doing financially from KZbin.

[@eviltwinzak]

Please don't ever work for BBC.

[@king_dot]

To be fair that’s what happened with Fact Fiend, the guy was originally a today I found out writer

[@willowmoon7]

The fact that Simon's facial hair has increased in volume over the years is proof that knowledge is stored in the beard.

[@jonathonbrown8522]

😂 love this comment

[@_KaiTheGamer_]

14:03-14:07 ok, now THAT'S an incredible reference.

[@aubreezeppeli1726]

I'm so glad I wasn't the only person that noticed it!

[@2311DeanO]

Let's see, Elvis Costello, Foo Fighters, Whitesnake, sea moons, literal stone oceans. Ganymede sounds just as bizarre as that

[@Nefville]

I saw Ganymede for the first time a few weeks ago with my own eyes. Jupiter is very close to the Earth at the moment and with just a pair of binoculars I could see 3 moons, one which was Ganymede. Odd they were on a tilt, like / that. I'm not sure if they orbit flat in regards to the plane of the solar system and the Earth was tilted or if they just orbit Jupiter on a tilt. Maybe a bit of both. Anyways that was cool, its probably still close enough to see them if the sky is clear.

[@pluto9000]

Depends on where you are on Earth.

[@flareinc7413]

These space exploration-videos are so amazing and I hope we get even more of them ^^

[@oxylepy2]

Simon: "Begging to be explored" My Brain: "Oh yeah, land on me Earth Daddy"

[@mdberg65]

4:56 - Your voice is a pleasure to listen to, but your writers are awesome too. Love that little nod to The Little Mermaid in a video about a water world.

[@EmilyJelassi]

Very interesting video! I really like the solar system videos lately.. very well written! Great job Simon and team 😊👏🏻💯🙌🏻

[@80budokai]

Geographics, great video! Enjoy your Wednesday! 🙏

[@oozorakyou]

"...or 100 mi in America **** Yeah unit" _(with birds casually fly on Ganymede moon)_ 10/10

[@LyleFrancisDelp]

When I was a kid, Jupiter had only nine moons. Now it has so many, and probably more that still haven't been discovered.

[@resileaf9501]

Damn, Jupiter is a hoarder. Hopefully the other planets stage an intervention so it can drop that habit.

[@bumblebee9337]

Only fitting that Jupiter would have the largest harem.

[@ElysetheEevee]

​@@resileaf9501 Lol, it would need a psychaistrist planet as that's a full-blown mental illness; not as much a "habit". I wonder which planet would make the best psychiatric help lol?

[@reddwarfer999]

@@resileaf9501 Jupiter is the Putin of the solar system. Keeps annexing stuff.

[@zimriel]

when i was a kid (1981) the number of moons Jupiter had depended on which book I read. when I got older I realised Jupiter had four real moons, and Amalthea, and a scattering of useless rocks.

[@Freedom001]

I love your style so much it's a huge reason I watch so many of your videos. Many thanks.

[@ianr]

We need more videos on moons, planets, stars etc please.👍🙂

[@deannagiuliani8541]

Space Simon is the best Simon. Full of wonder rather than disdain.

[@kevanhubbard9673]

I saw it last night although I was pretty undergunned with a 5x10 Zeiss monocular but it's all I had on me and you can just make out Jupiter's main 4 moons with it.

[@theconqueringram5295]

This is a fascinating presentation on what could be one of the most fascinating objects in the Solar System. Also, I loved the subtle Kim Jong-un and Vladolf Putler roasts.

[@Hillbilly001]

Smashed the like button as a sacrifice to the Algorithm. But, I wonder what happened to "Xplrd"? The Whistlerverse is the bomb! Allegedly. Cheers.

[@MeteoricBurst]

That JoJo's reference after 14:00. Not for the first time on this channel.

[@sohamtalekar7820]

Was looking for this comment

[@slmanimates231]

I'm glad it wasn't just me that spotted this, I was doing a word-search of the comments to see who else took something more form this video lol!

[@Dank-gb6jn]

This pleases the Space Cowboy. Watch out for Red Eye dealers, and a certain modified Welsh Corgi. Edit: when JUICE launches, someone remind me to come to this video and write (in all caps) “The Juice is loose”

[@tugatomskanimation6370]

Sadly, he's gonna carry that weight...

[@Dank-gb6jn]

@@tugatomskanimation6370 a poignant and insightful end to the series.

[@Docwilson91]

I was checking the comment specifically for the “Juice is loose” reference. I was not disappointed

[@Dank-gb6jn]

@@Docwilson91 I’ll post it again whenever the system launches lol. With a name like JUICE it was bound to come up 😂

[@lewisnic1234]

Less than Scotland gets in November - and I took that personally

[@bjornkinding6998]

Great information! Super interesting! and an awesome way to present them!

[@agale1360]

Miles…”America’s f**k yeah units” 😂😂

[@lewis4200]

"Inaccessible to you as your ex's heart." Why you gotta do me like that, Factboi?!

[@charlieduke6393]

Been waiting for my fix all day.

[@robbramos2047]

As a U.S. American, I applaud Simon’s gentle ribbing of our stubborn adherence to non-metric measurements.

[@tint1122]

5:03 I didn't know there's seagulls on Ganymede.

[@v.emiltheii-nd.8094]

13:59 Nice Jojo reference.

[@antonnym214]

Nice reporting, sir! Hyper-interesting. All good wishes.

[@MiaD666]

I love me some space videos. Space is so vast and wonderous. Saturn is my favorite planet and I am always happy when I can observe it through my telescope.

[@bartterp88]

I kind of wish there isn't any life in these oceans on Ganymede. Because if there is, it means the universe might be stacked with life. And that's a scary thought.

[@davidmacphee3549]

Far far too far to affect us.

[@daniellewis3330]

Scary AWESOME!

[@victorchekoff8343]

Seriously, we need a dedicated channel on Space! Simon man of the people, come on!!!

[@christopherlewis1847]

I have to say, the idea of Elvis Costello teaming up with the Foo Fighters does sound interesting. I would like to hear that album.

[@insaneredneck3917]

Jojo reference my guy

[@stantheman9072]

OMG! Simon with a “Team America: World Police” reference. 😂

[@bartl.]

‘Murica f*ck yeah units😂

[@HereBeDragonsYT]

Somehow, I missed this one when it dropped originally. Lucky me that I get to watch it now.

[@queredknight]

I like these videos. There is a few places I want spacex to go to. The moon, mars, ceres, vesta (because it is an asteroid with an iron core like a planet), Ganymede, and Titan.

[@Parzival0]

Omg you constantly love to dig at Putin. I feel like it is almost a tradition in every video thanks for the laugh 😆

[@ki5rllthreedronefour85]

I love those birds flying around on the ice sheet video clips in this video.

[@stephenhammond6962]

Great video Nomis 👍

[@NoelMcGinnis]

Not Simon quoting The Little Mermaid! 😂

[@marxyzm1655]

Amazing video. Thank You!

[@zzzzzzzzzzy]

i am loving these astronomy videos!

[@operator.k]

I have to re-watch this now ... I spent half the video thinking about Cowboy Bebop references

[@robertwalker-smith2739]

'Simply begging to be explored. . .' That's what Zeus said to Hera.

[@coreyharrison8850]

Fabulous little mermaid reference. Just so on point!!

[@IamayMizono]

I like how Simon calls Ganymede the biggest "natural" satellite like we somehow made a bigger satellite ourselves.

[@beans666]

One day we might 🤷‍♀️

[@worthlexx]

13:56 Did he just make a JoJo reference?

[@BillHimmel]

I hope so much for these missions! Finding even the most primitive life on an other body would be the biggest breakthrough in biology since Darwin‘s „On the Origin of Specis“.

[@peterpayne2219]

I really liked this video!

[@raidermaxx2324]

its so crazy to think that at some point in the future, worlds like Ganymede and Europa and other ice shell moons beyond the ice belt in our solar system will become full on, balmy ocean worlds for a few million years, when our sun starts to die and gets all fat and bloated

[@RideAcrossTheRiver]

*billion ... Also, if these moons warm to liquid, it will boil away leaving a rubbly core.

[@christopherbassit2757]

@@RideAcrossTheRiver over millions of years. Plenty of time for life to flourish

[@padawanmage71]

Nice seagull @7:17. 😁

[@debbiep99]

How do you not get tired of talking? You have so many channels and it's all you talking. I'm exhausted just thinking about it. Well done

[@omar53333]

14:01 was that a JoJo reference?

[@cjpolett2055]

Beard is getting epic, dude👍

[@stevedaenginerd]

4:57 Love the Little Mermaid Reference! 😅

[@carolpond3340]

Simon I humbly suggest that you create another channel for your empire called space-ographics

[@rodgermurphy5721]

What an amazing stunning world it would be to walk on ....could you imagine

[@Pleplerhep]

Imagine the exitement and pure terror it will be actual finding life there.

[@ilajoie3]

Hopefully Ganymede doesn't have any ice nine in addition to possibly all sorts of other ice types

[@ComaDave]

That's what I was wondering. Imagine the first human exploration of Ganymede being obliterated by a typo.

[@TheScrubExpress]

So we're gonna have JUICE and the Europa Clipper around Jupiter at the same time? That'll be pretty coooool. 2031 where you at.

[@daltonbedore8396]

"down where it's wetter, and arguably, better"

[@stinchy8564]

14:00 nice Jojo Reference

[@djdrack4681]

100mi subsurface ocean = so massive most can't imagine what its implication is: the upper levels may resemble arctic/antarctic here on Earth (maybe 0-7mi): the lower levels those may have those exotic forms of water ice, and the deeper layers exotic layers of water compressed (in liquid form) so much that it acts more like cold gel/crystal. The intriguing part though is that this is good: you could explore such exotic environment (water being great for heat dissipation) and thus drill down if you can keep the drilling equip from succumbing to the pressures. 'Aqui-forming' (waterworld terraforming): - Drill down in a pattern around the moon. Prob 48-96 separate holes to mantle/core: down each you'd drop enough enriched uranium to supply 200-300 nuclear reactors for 100yrs. Let that melt and sink into the core. Then using same boreholes you take like 10 gigatons of thermonukes and in a staggered chain drop em in and detonate: basically 'a heat boost' to the core. The core won't rip the planet in pieces, but the mantle turmoil should disrupt the middle ocean/ice layers, which would disrupt the surface crust. Do this and you could get the surface to be water again. ^^^ While doing this you create a giant grid of solar-arrays and maybe use the power to fuel high energy lasers: then use these to focus them onto collectors on planet: the collectors running a giant system of pipes that'd float on the ocean basically working as a form of radiant heat. THEN: take some lower orbit gas collectors to help keep pumping the atmosphere back downward into the planet: maybe a ton of CO2

[@petuniasevan]

10:14 In Xanadu did Kubla Khan A stately pleasure dome decree Where Alph the sacred river ran Through caverns measureless to man Down to a sunless sea. (Samuel Taylor Coleridge, "Kubla Khan", beginning stanza)

[@DesertFernweh]

The Expanse enters the Chat: Belta lada! Down wit da inners!

[@marcofava]

I only knew of Ganymede thanks to the Expanse

[@Lohoris]

I'm wondering, IF the multiple layers theory turns out to be true... How would we even manage to explore the inner layers without cross contamination?

[@beans666]

What do you mean by cross contamination?

[@beans666]

If you mean like life from our planet ending up there... the intense cold and lack of oxygen would be enough to kill almost everything. Leaving the atmosphere and being torched while it's happening would probably do the rest.

[@dizzious]

Awesome! More please

[@janvanruth3485]

fascinating to see much money and effort goes into finding life on far away planets while at the same time scores of people right here on earth are dying of totally preventable conditions like STARVATION...

[@Styxswimmer]

New Channel called Astrographics for stuff from outer space.

[@pjbth]

If the chemo synthesis energy comes from hydrothermal vents than wouldn't only the inner shell have life? If the oceans are separated and independent than where would the energy come from in the others?

[@ajkleipass]

Given the depth involved, I should think that some sort of melter would be preferred to "drilling equipment". As for extraterrestrial life... Is there life out there? Absolutely. Will we find it? Perhaps, depending upon its location and our ability to not exterminate ourselves (or it) first. Will anyone alive today in 2022 live long enough to learn for certain that it does exist? Probably not. We are but tiny, short-lived microbes in a vast Universal ocean, and we lack the knowledge to even begin to comprehend how common or rare lifeforms truly are.

[@aubreezeppeli1726]

14:03 now THAT was a truly Bizarre reference ;)

[@thestork93]

Please do Neft Daşları. Must be so interesting

[@claytonica23]

Yaaayyy Spaceographics!! So good but CONDUCIVE IS STILL NOT CONDUCTIVE, please Simon. Please

[@julius-stark]

BELTALOWDA!

[@xyz7572]

NASA: “Let’s name our probes after mythical beings and famous astronomers of history” ESA: “Hehe we’re gonna name ours ‘Juice’ 😎”

[@elijahgiter9559]

Can't wait to say, "the juice is loose"

[@maxdanielj]

The dig on puty was 🤣👍