NASA's Stunning Discoveries on Jupiter's Largest Moon | Our Solar System's Moons: Ganymede
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- Опубліковано 27 чер 2024
- Almost everything you could want to know about Jupiter's biggest moon, Ganymede.
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When I went to high school back in the 80’s we were taught that liquid water had only been found on earth. What a revelation to learn that water is far more common than once thought.
so is herin ifound it growing under my needles..................
@@unlockeduk XD
@@unlockeduk that’s so funny bro. Thanks for posting that comment man it really made me laugh
Even Uranus has water...a lot of it
I went to school in the 70's and remembered scientists saying if they ever found water on another planet or moon it would be proof that life exists on other planets.
I love how visually distinct the Galilean moons are. Io is all yellow and red because of the volcanos. Europa is bright white ice criss crossed with red cracks. Ganymede looks like our moons big brother and Callisto looks like it got in a fight with ever rock in the solar system and lost
I thought about a video game and its different levels (moons) x.x
Ganymede Is our moon's Big brother lol
Are you too blind to see the images of creatures on Ganymede as well as the symbols on Callisto? that NITWIT very briefly showed you on that video that he will not ACKNOWLEDGE!!!!!!?????
Do you ever get red cracks?
Callisto, especially compared to the other great moons of the Solar System is very much dead. More dead than even the Moon on Earth. At least it looks nice, and it doesn’t get pelted by radiation like Jupiter’s other moons.
Jupiter just creating its own mini solar system.
That’s bad-ass!!
jupiter isn't a star, so the adjective solar is incorrect
Jupiter might’ve been a failed star as most star systems are binary pairs. If anything it could’ve been a red dwarf had it gotten more material.
@@bryantwiltrout5492 it would. Not have dies
It also would need a mass 90 times more to become a brown dwarf
@@sockington1 Jupiter could be classified as a brown dwarf star had it not been in the sun's sphere of influence.
Ganymede has an ocean and an electromagnetic field? I've been away from Astronomy for a decade and suddenly it has an ocean! Fascinating!
Might have an ocean.
It's incredible how astronomy has transformed the solar system from a bunch of lifeless static rocks and balls of ice to how dynamic and unique every solar body is understood to be today.
And other moons have oceans too, some have even been sampled
Welcome back :)
@Arnold Junkes He explains, why Europa is a better candidate for possible life. Enceladus for the same reason.
Whenever we talk about any moon, Expanse come to my mind.
Yea. I want the space future to be exactly the same as described in the expanse.
YUP
@@smitprmr are you sure about that
@Kobe Died Lmao I'm pretty sure you don't know what a weeb is.
@Kobe Died Lmao Wow. Toxic.
Astrum is a legend for making a video on gamymede after the juno flyby.
Ass clapper
Awesome, indeed.
Well I didn't know Ganymede have the largest ocean in the solar system. I thought Earth have the largest ocean but now I'm glad I know.
I didn't know Ganymede have auroras and now I do.
I didn't know Ganymede was just a little bit larger than Titan in size. I thought it was about 6000 km in diameter.
I didn't know Ganymede have magnetic fields until today.
I like what I learn about Ganymede today. Thank you. I'm liking it.
As a gas giant, you thought Jupiter had an ocean? The Gas giants, Jupiter, Saturn, & Neptune, don’t have oceans. Earth is the only plant with oceans, though there is speculation that Pluto might, but even then it’s a dwarf planet.
Surely Jupiter could never contain an ocean.
@@Wild_Bill57 not ocean exactly but the most water ever present in the solar system.
Even Europa has more water in it's suspected ocean than earth.
Only Earth and Titan are known to have oceans on their surfaces. Mars is known to have had oceans until about 40k years ago.
Europa is known to have a water ocean covering its entire rocky surface, but itself covered by tens of kilometres of water ice. That's more water than on Earth, which is only a thin layer on only part of its rocky surface.
I hope you end up doing Callisto, definitely the lesser-known of the moons, but I find it super fascinating because it’s out of a vast majority of Jupiter’s radiation
NASA even made a study on human colonization of Callisto, the H.O.P.E. (Human Outer Planets Exploration) concept
@@ferrreira Yep, and it also has the advantage of allowing real time control of drones exploring other moons within Jupiter's radiation belt. Thus allowing us to explore Europa and Ganymede much more effectively.
@@Temp0raryName imagine that! Imagine the views the people on this mission would have the chance to watch.
It kind of sucks that Callisto is basically geographically dead compared to other giant moons like Europa or Titan.
I must say Alex, your voice is so calming. Add on to that the amazing content and this is easily the best underrated Science channel.
Imagine a moon being bigger than a whole planet
Don't have to imagine it!
That’s no moon…
"That's no moon, it's a battle station."
Ganymede vs Mercury!!!!
Titan
Ganymede has an ATMOSPHERE !!!
As long as they didn't find any Protomolecule, then I think we're okay
i agree. we must remember the cant.
I clicked the video explicitly for an Expanse reference. I was not disappointed.
@@nyssfairchild2244 For da Belta's!
@@2DRonaldo Mi loda!
@@nyssfairchild2244 Faw da free Belta Nation Aw'ite!
It should be pointed out that not all life requires atmospheric oxygen for growth such as anaerobes. So its possible that anaerobic life may be present in Ganymede (rather than on it). What is more important for life is liquid water, stable temperatures (tidal heating) and protection from radiation (which thick ice sheets can provide).
🤌
The key point made on the video though was that (unless the ocean is salty enough) the ocean is not in contact with the hot core of the planet. In the absence of sunlight, it is heat which provides the power for life in Earth's oceans. Would the tidal heating of just the water alone be enough to sustain life? I suspect not, given that life in our oceans, under the nearest conditions which we have, is only clustered around the hot vents on the ocean floor. Another problem with such a thick ice layer separating the ocean from the rocky and hot parts of the planet is that it is unlikely that the basic building blocks of life (which on Earth conveniently come up through the hot black smoker vents in the ocean floor) would be able to get to the ocean. Maybe there could be some on top of the ocean floor ice layer though, from ancient meteor impacts? If so though it is at the coldest part of the ocean, meaning that it would make it far far harder for life to have evolved there than on Earth. However, that said, if there is enough oceanic tidal heating to create currents which stir up sediment from above the ice layer, evolution may have found a way. If so though it is likely to have been a long time behind Earth's evolution. The less heat there is, the less activity life & thereby evolution can have.
The question is whether biogenesis can happen like that - probably not - although life can adapt to that as extremophiles do, how would the primordial soup in extreme environments create more fragile lifeforms which can evolve into such things?
@@Temp0raryName You have brought up some good points, I guess we won't know until future missions provide more data. You might find this new research paper an interesting read: Earth and Planetary Science Letters
Volume 563, 1 June 2021, 116886 'New insights into temperature-dependent ice properties and their effect on ice shell convection for icy ocean worlds'.
@@jorgepeterbarton I recommend reading Astrobiology Understanding Life in the Universe by Charles S. Cockell. It's a widely used university textbook. Chapter 11 - The Origin of Life. This chapter talks about the types of carbon, plausible pathways, and the nature of early cells.
Imagine what kind of critters that could potentially be living in those oceans.
It's probably way off the mark but I can't help imagine but think of the underwater ocean scene in Star Wars... There's always a bigger fish.
@@astrumspace "Big Goober Fish, huge 'ol teeth"
Especially since there is all that tidal warming and radiation protection
Yeah it'd be real cool, that being said at most we'd find bacteria sized life forms, perhaps even smaller creatures but I doubt anything bigger than a shoe could survive down there.
Also we barely know anything about our own oceans, let alone that of a moon we can barely access.
maybe mermaids?
Why anyone on this blessed planet would downvote this video is beyond me.
Europa uber alles!
Eco-Freaks trying to save the Ganymede Sea-Rat.
Because the images are engined or doctored. Should I upvote Star Trek when I’m told it’s reality? It’s hard to watch cartoon images and assume the story behind it is true.
@@johnnydough8841 "Joined Dec 28, 2020"
finish middle school first lol)
Always fascinating and informative. Keep up the great work!
Such intriguing content as always and delivered in a very enjoyable way! Thank you so much for all you do!
The idea of multiple ocean floors ( even if they are made of ice) is pretty compelling. It would also make reaching the true ocean floor of Ganymede far more difficult for us.
When the UN and MCRN are studying plant growth in space here in a couple hundred years they’ll probably look back at this and chuckle.
An underrated moon for sure! Thanks for the video.
Your channel, and your videos are fantastic! Getting this update on our solar system is pure joy. :)
"i hope by the end of this video i earn your like and sub"
lol dude you earned my like just by producing content
Been waiting for this for a while! You got a new like!
Well done Alex. I've requested a video on my favorite moon ganymede for a while now. Thanks for doing this one. Fascinating.
Just wait til the protomolecule shows up XD
are you a belter?
@@colorfulbleeding doan mess with te aqua!
Too late, dustah!
@@darkleome5409 BERAATNAAS xD
😳
Jupiter has 79 moons? Wow ... That's like a whole Solar System unto itself.... 🙂
Gotta Catch'em All Pokemoons.
Only the 4 Galilean moons really matter though. The rest are rocks with diameters of less than 100 miles across each.
@@weasel2173
JMM..... Jupiter moons matter.... 😆
Saturn has 82
@@anmoldeep2400
Really?.... They must have discovered a lot recently... From what I remember, I would've guessed Jupiter and Saturn had around around 20 moons each. I knew it was a lot because of their big gravity wells capturing asteroids. But honestly...I don't know if their gravity is entirely responsible. Doesn't Saturn have extremely low gravity relative to it's size? It's said that the planet would actually float in water if you could find a body of water that size. Also.. If you count the rings and all those separate rocks and pebbles, Saturn would have MILLIONS of moons. lol🙂👽
Nooo! I'll be 90 odd when JUICE gets to Ganymede.
Hope I can last long enough to see it happen
Really? So you are in your mid-80's now? Good on ya being all internet savy! You must be a cool boomer! :)
Eat vegetables
@@capnawesome4649
WHAT! And forgo my paleo diet
I only eat mammoth steak
@@raidermaxx2324
Did I mishear?
Saw 2035 (which I took to be the mission date) and then heard +10 years to get there.
If the mission arrives in 2035 I'll be in my 80s so I'll have more of a chance of still being around.
Given my goof it looks like dementia is setting in already
I won't be 90, but my longevity was the first thing that came to mind...
Love this channel! Been going through the library this week.
it would be so cool if a billionaire just said: "Fuck it, lets send multiple designated probes for each planet/moon in the solar system, no matter the costs, like 30 billion and in the next years and call it the SSS (solar system survey)."
I would love to have live cams at every planet and moon.
i don't disagree- but this comment still struck me as funny with the odd specificity
Its definitely possible, if I was in their position I'd fund that
Looking forward to the 16 Psyche asteroid mission launching in 2022. The most valuable object in the asteroid belt!
@@AxionSmurf I feel like that would be boring after a few weeks. Literally nothing would ever happen
It's just amazing that so many places we assumed were dead rocks in space turned out to be anything but. The surprises never cease.
A perfect example of average people with an interest in scientific, naturalist studies insisting what is SCIENTIFIC FACT ...yet given more and more time and data gathering... Finding out their "absolute facts" were nothing more than astronomers hypothesis needing more testing or speculation assuming consistency with things already studied up close like our moon.
I have been waiting so long for this video! Thank you Alex!
Thank you for a great addition to your growing library.
I didn't know this about Ganymede, that show us that this moon is most incredible that we usually think.
It Will be Great to see a misson to study it in the future, beacause it could show us how could be another worlds with the same characteristics in other places in the universe 🌌.
Thanks for the information Alex greetings for everybody 🇲🇽🇪🇸🇮🇪👋
I've always loved learning about Jupiter's moons, but how have I never heard about Ganymede's water?
It was only discovered recently. It has been speculated that Ganymede is half rock, half ice. But with the discovery of the auroras, it turned out that a lot of that water is liquid and contiguous, which is surprising.
These are good videos, Alex; professional and highly informative.
It feels wrong that Astrum’s videos are free...the quality, the info, the passion, and the joy that these videos give take so much time and hard work. Thank you to the Astrum team!
Shshsh...the BEST things in Life are Free. Plus, you're already paying for your phone service, data plan, phone itself, electricity, taxes, etc.
So you see, it's not really FREE.
@@paulheydarian1281 Bruh that's the same kid who would always remind the teacher about homework
They're free if you have as blockers, true. Otherwise you do pay with your time and sanity.
Fascinating, Liked, yours and Nemisis Maturity channels are the only two I watch for this type of content
I absolutely love this channel. Thank you for such wonderful work.
Thank you for making this video! Finally a video about Ganymede!
Brilliant work yet again Alex. Thank you.
10:01 orbital insertions are so cool.
@east bridge 144 Nobody asked for your propaganda, fascist.
I love the moons just because they’re so interesting
Exactly
Very much so
Jupiter's moons are more interesting than most planets.
Your videos are excellent. ... Whenever Astrum pops up I KNOW I'm going to learn something.
Amazing video. I love this series on Solar System Moons. For me, these great moons are as interesting as planets... they're like planets orbiting other planets.
Astrum videos are invariably pleasant to watch and listen to, factual and useful. Thanks!
Can't even fathom the amount of pressure that would turn the water back to ice towards the center. Wouldn't some heat be a byproduct as well? I wonder if those two forces in conflict contribute towards this at all. Amazing video, cheers!
Thank you! I like how you compare facts to earth, so they are not just numbers since we have a point of reference!
Another excellent presentation. Well done, Alex!
Cool video man. Ganymede is so fascinating! And so interesting that Ganymede was know as Jupiter's cup bearer by the ancient Romans. They may have learned somehow about the watery nature of the moon.
romans didnt name the gallilean moons, they didnt even know about them. the names of the moons were tacked on long after their discovery, for the first couple centuries they were mostly called jupiter I, jupiter II, jupiter III and jupiter IV.
Ganymede is fascinating, but I think it is Callisto where future humans should establish a base. It is much further out than the other 3 big moons of Jupiter, and should experience way less radiation.
I waited for this video so long!
00:45 bruh you've already earned my subscription, now take my like 👍
If Ganymede's magnetic field is generated by tidal, think about how warm the Europa ocean might be! Life could be there!
Finally! I've been waiting for this. Ganymede is my favorite moon! Wish you had used the new picture from the Juno flyby last week.
I did use it!
@@astrumspace Oh. I must have looked away at just the wrong moment. Whoops. 😅
"I hope I earn your like and subscription by the end of this video". Dude I pre- like the video even before the first ad is done playing. You have never failed to deliver quality content. I'm happy you post content, we are lucky to be able to watch your Space content!. Thank you
Do more of these moon videos. Callisto, Miranda, Ariel, Oberon, Proteus, and Charon need videos of their own.
beautiful images, relaxing and intriguing commentary…very enjoyable and incredible content
Ganymede, kidnapped by Zeus who fell in love with him, was actually Zeus' own great-great-grandson in the most common version given of his family.
I really enjoy your video's Alex, kind of wish you'd make a full Documentaries.
You make amazing videos. I wish they were longer
Tidal Force puts pressure on Crystals (Piezoelectric) giving a Electromagnetic Field...
Amazing idea, at least theoretically.
It'd be cool to make a model and check how probable something like that would be.
Could also be a VERY salty sea, stirred up by the gravity of Jupiter.
Neat
I can asure you, water and wine weren't the only things Ganymede was handing out to Zeus,,, 😳
Some things more... spicy
@@ganymede3660 maybe it glows blue aswell
Ganymedes is the Greek name. Why not use the Latin name Catamitus?
@@michaelalexandroff5441 Io and Europa can attest 🤭
@@klausolekristiansen2960 Why?
Your videos are excellent, and very interesting and you are an excellent narrator!
My favorite moon of all time! I'm so happy you made a video on it
Zeus sure liked “claiming” helpless women and young boys.
Zeus is quagmire with thunder powers.
Oh good lord.
Soooo if 5-8 rem would kill me in a couple of months, what would 3600 rems do to me?
ehhh.... Instant deconstruction of Human Body?
Probably isnstantly turn you into a cooked hot pocket!
Make you lose 3600 religions.
Make you ask Stupid questions on a UA-cam channel !
Thanks a million Alex, you're out of this world!
Ganymede is basically a planet that got stuck in Jupiter's gravity.
Wait... It might be the Ninth Planet...
When will you people name the Sun after me? I’m hot, unpredictable, life giver, and lash out in all directions, name a more perfect candidate, I dare you.
If it has a ferromagnetic mineral content, couldn't it borrow one, just from rotating and revolving in the same directions, inside Jupiter's magnetic field? Like rubbing a nail on a lodestone.
that would be an induced magnetic field, along the lines of what Venus has(although that is due to the interaction of the atmosphere and solar wind and has nothing to do with its ferrous metal content). they have distinct characteristics. all data points to a self generated magnetic field, not an induced one.
Induction.
@@michaellesak6912 Right on, thanks! I'm just a st00pid noob, and don't know the lingoes. I'm good at picturing concepts in my head though, and I've often thought about this sort of thing. I heard about the one on Venus, good thing it has two really weak ones that sorta reinforce each other, or something like that.
Good one, I didn't know about the magnetosphere. I caught the Jupiter Enigma on another streaming service and was well worth the watch.
Yayyy you've started sharing content again!!
Imagine if aliens just put a giant magnet in the centre of Ganymede lmao
😇😱 if so, then they are the main culprits who are showing sand dunes on their planet as liquid water to our hubble telescope? You mean to say Alien guys are also fooling our all NASA satellites and telescopes?
1:24 When the atmosphere doesn't count into the diameter what's the "real" diameter of a gas giant like Jupiter itself?
Approximately zero. Nobody knows because nothing would survive the descent down into the atmophere of a gas giant.
Usually the surface is assumed to be at the layer where the pressure is equal to the atmospheric pressure on the surface of Earth. And that also determines its size. But it is not much different from when you include the atmosphere above that surface.
@@davidwuhrer6704 but it has solids and liquids far down
You cant because state of matter is a gradual change due to pressure, so which part does it stop being gas- we cant say
So glad I found this channel. Subscribed half way through the first video I watched.
Way of the World uses the same background music, love it. Though it doesn't really match your jovial and enthused tone if I'm honest 😁 Great video though as usual. Thanks for all your great work Alex x
there has to be life on ganymede or europa if there are hydrothermal vents
Unless the radiation is too damn high.
@@davidwuhrer6704 I remember hearing (could have been on this channel) that water is decent for shielding radiation . Think he mentioned for space travel they could put the water on the outer part of the living quarters to protect the crew.
@@davidwuhrer6704 there are life forms even on this planet wich can thrive in super high radiation environments. as bushman said, pretty much all of the radiation would be blocked by the deep oceans unless there is alot of it coming from the core.
@@arloc_official Yes.
Irradiation is still a reliable way of sterilisation.
We'll have to look and see.
@@aaron1182 yes, some modern nuclear reactors are literally at the bottom of a swimming pool and operators can operate them from a bridge. It absorbs certain radiation, most likely alpha and neutrons
This planet is special because of it's farms that provide food to the belt, but with the solar dishes destroyed it will take time to recover.
Excellent show. The best “modern” sci fi series I’ve seen in years.
to be honest there are much more and much better documentaries in youtube than in magellen t.v
My all time favorite moon🔥❤
Gotta be honest, I expected more Expanse jokes from the comments :D
they found protomolecule
Me too!!
Knock, knock...
- Who's there?
- Uhm....I'm just ...some guy...
- What guy?
- Uhhh....that guy...
- You're not that guy....I am that guy...
Can’t wait to travel there, it will be magnificent 🙂
Never happening.
Liked and subbed thank you for the amazing information!
you have great timing!
I click LIKE before I even watch because I KNOW it's gonna be good.
the shitty part about this is that i already joined nebula : ( so like magellan too would be a bit overkill : (
You were chosen to explode Ganymede: 😀
*Detecting multiple Leviathan-class lifeforms* : 😨
This is a perfect illustration of how our larger planet formed, with the iron core from meteoric impact in its young age,to the rocky mantle which is the actual size of the planet, to the water covering from solidified steam from the cooling sphere, which made up the outer half of its total volume after being sealed in by ice from the frigid temperatures and thin atmosphere of outer space. Mind blowing. The difference is, the water covering our sphere was only about a mile in depth on average, and underwater lava flows and meteoric accumulation caused the compensatory adjustment of the rising land masses above the water.
Scientists:dont know why Ganymede has a magnetic field
Me:if the Moon had one so can Ganymede
Or they could be 100% wrong about all of this.
How
@@Dankfort
I'm not saying that they are wrong, just that it's possible they are. They always give out random tidbits of information that it just seems impossible for them to know something as an absolute. Maybe they do know and I'm just not smart enough to see it. But I think they take certain liberties sometimes, and I don't have a specific example. I'm sure something was said in this video and at the time of hearing it, it made me question it.
Fun fact, @ 7:06 the general cause of tidal deformation is not the satellite's mass being pulled toward the direction of Jupiter.
It's a result of the sum of all relative g vectors at the satellite's "poles" (2 opposite points on an axis containing center mass, axis perpendicular to the plane containing Jupiter and Ganymede) directed relatively inward, squishing the planet. That explains why satellite becomes deformed ("bulging") on both sides.
Conditions would have to be quite extreme for "mass being pulled" effect to become dominant and barely noticable.
Amazing video, keep them coming pls! ^_^
Esta lua Ganimedes é relativamente grande, maior que o planeta Mercúrio!! Grandes novidades sobre esta intrigante lua e é admirável que não tenha a mesma rotação com as outras luas tendo órbitas diferentes?!...interessante e elucidativo vídeo numa lua cheia de contrastes entre o novo e o antigo!!
Great content as usual💫
Hey man love the content 👍
This is one of my favorite videos documentary of Ganymede I learned a lot
Awesome video! Can't wait for one on Callisto.
Just amazing - thank you so much
Thanks for the video
My only complaint about this channel is that the videos are not long enough, just 10 more minutes would be enough for me to be able to fall asleep to. Other than that 5 Star!
Criminally Listed’s content is superb for falling asleep to at least on a mood/tonal level. The subject matter may not be conducive for that function in some people though ; )
@@sudonum3108 Thanks for the tip, I’ll give them a go. I think it’s being lost within the Solar System that helps. I’m at piece when I’m thinking about Space haa.
ty Ill check out Magellan TV