Is Our Solar System Missing Moons?

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You might be pretty confident that when a moon is there it’s there to stay, but that’s not always the case. Moons may have a history of disappearing.
Hosted by: Savannah Geary (they/them)
Correction:
05:19 Well, this is half right. The moons don't actually orbit the same distance from Mars and orbit on opposite sides of the synchronous radius. Sorry about the mistake!
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• A "Flight" Over Jupiter
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Опубликовано:

29 сен 2024

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Комментарии : 127

@scishowspace Год назад

Thank you to everyone who noticed the mistake in this video! Mars's moons Phobos and Deimos do not orbit on opposite sides of Mars at the same distance! The researchers noted that the moons orbit on opposites sides of "the location where the orbital period about Mars equals the rotation period of Mars," or the synchronous radius. You can read more about this in the paper here: www.lpi.usra.edu/planetary_news/2021/03/08/exploring-the-origin-of-mars-moons/

@ThorinKyuubi Год назад

Wait. Wait! What's the deal with Saturn's tilt and what's the other theory? You cannot just casually throw these things in the air and not elaborate further. We need to know! Come back with a video about this imediatelly! I need to know about the tilt!

@alfiehaigh8412 Год назад

Thought we were getting a limp bizkit cover for a second with that intro

@SAOS451316 Год назад

Venus probably also had at least one good sized moon long ago. It may have collided or got yote from the solar system.

@patrickmccurry1563 Год назад

That seems unlikely so close to the sun.

@SAOS451316 Год назад

@@patrickmccurry1563 That's why it's not there anymore, but the models say it is likely that it did have one once upon a time.

@johntaggart979 Год назад

"Yote": is that the proper past tense connugation for "yeeted"?

@SAOS451316 Год назад

@@johntaggart979 Yes it is! I find it very amusing.

@nebulan Год назад

Well, Jupiter has a moon named Metis so... she's next.

@grahamturner1290 Год назад

It was just a passing phase. 😎

@davedee6745 Год назад

Um, if Saturn's rings are from a torn apart moon, shouldn't the rocks and boulders that make up the rings be considered "moons" since that's what they came from. That would mean Saturn has about 1 billion moons and Neil Degrasse Tyson will be busy naming all of them.

@francesconicoletti2547 Год назад

Tyson would be lobbying to have moon and dwarf moon separated into two categories based on some arbitrary orbital mechanics that only works for the rings of Saturn.

@garethdean6382 Год назад

Ironically a moon is generally considered to need to have a clear orbit (Not to have CLEARED its orbit, which is different.) The ring fragments don't 'count' since they're part of a crowded system, though there are 'shepherd moons' which keep some of the rings in place or distinct. A similar issue plagues Earth, which has had a few temporary 'natural satellites' in its orbit in human history.

@randyselvidge5594 Год назад

Hey, Zeus ate a pregnant goddess to stop a prophecy that had Zeus' son killing him, that's the reason Athena had to get smashed out of Zeus' head.

@justice_1337 Год назад

incoming cHrYsaLiS sUbSuRfAcE oCeAn 🙃

@davidroddini1512 Год назад

6:26 “Maybe try inside the fridge” No keys but who the heck left a moon in here?!

@michaelmicek Год назад

Maybe it was planning to go someplace else and got lost.

@MissionControlTet Год назад

Earth also lost another moon, according to latest NASA simulation After Theia collision, materials ejected into Earth orbit coalesced into 2 objects: larger clump and the smaller one. The larger clump interacted with the smaller one, which exchanged their energy: the bigger one lost orbital energy and falling back into Earth, the smaller one received energy transfered from the larger one and pushing it into higher orbit which secured its position. The smaller clump became Luna

@AragasiOlama-dk3km 7 месяцев назад

There were another moon After the theia collision the second moon was 3 times smaller than The Moon and it was much further from earth. The Smaller Second Moon Collided with The Moon in the Lunar South pole and Splattered it self in the surface of The Moon as a extra layer of crust the collision was cause by The Moon drifting away from the earth

@Narmatonia Год назад

I'm surprised you didn't mention Neptune and Triton, a prime example of lost moons. Triton makes up 99% of the mass of all Neptune's moons, suggesting that after it was captured, Neptune's other moons all collided with Neptune or Triton, or were ejected from the system altogether. Also 4:19 insert Captain America "I understood that reference" gif here

@ivarbrouwer197 Год назад

not to split hairs that was gaining/catching a moon, not loosing a moon. Though catching Triton would probably have created chaos for Neptunes moons too. (To your credit, the Mars example didn't really seem to apply also)

@Narmatonia Год назад

@@ivarbrouwer197 What I meant is that Neptune likely had lots of larger natural moons, like the other giants. Then Triton showed up and scattered them, leaving only the little rocks we see today.

@ivarbrouwer197 Год назад

@@Narmatonia probably, but not definately, afterall: where are the big moons of Uranus then? (But i'd love to see some research on that, which as you point out, this segment is sadly missing out on)

@Narmatonia Год назад

@@ivarbrouwer197 I wouldn't say Titania and Oberon are unusually small, they may not hold a candle to Titan or the Galilean moons, but both are bigger than Rhea. Plus with Uranus being significantly smaller than Jupiter or Saturn it makes sense it would have relatively smaller moons.

@joearnold6881 Год назад

But… what if someone didn’t get your reference to the Captain America meme about getting a reference?

@Salt_Master_Queue Год назад

Chrysalis was like, "I wanna be with you, Saturn," and Saturn was like, "Keep your distance, or I'll tear you apart."

@nunya___ Год назад

or... "I'll rip your heart out".

@wilsonli5642 Год назад

Tearing its children apart IS appropriate for Saturn, in this case!

@technowolf1544 Год назад

Phobos and Deimos were placed that way by demons to tempt humans into testing our teleport technology on them

@SaiyanHeretic Год назад

Do you want to open a portal to Hell? Because that's how you open a portal to Hell.

@masonjohnson4310 Год назад

Heavy metal intensifies

@nathanball99 Год назад

She got their orbital distances wrong, they are not the same, not even close.

@ikebeckman1074 Год назад

@@nathanball99 yeah I thought so, Phobos is way closer and its fate seems to be sealed, eventually reaching the Roche limit

@krakhedd Год назад

Nah bro Phobos is home to the Angels, Deimos to Demons and Emperor Palpatine rules Mars

@samwill7259 Год назад

I don't think saturn "lost track" of a moon I think it now has to live with the scattered corpse of its moon orbiting around it forever more

@General12th Год назад

Not even forevermore. The rings are slowly decaying and will fade within another hundred million years at most.

@QuarterLifeCrises Год назад

I think the planet would feel like its kid is missing rather than its keys, wanting to put up missing posters all over the solar system.

@General12th Год назад

Naw, you know all planets secretly go _"nomnomnom"_ and enjoy their secret snacks.

@veggiet2009 Год назад

I have theory that I had another, larger, set of keys, and the two got too close together smashing them into 1000's of key fragments all over the house. In this paper I will...

@garethdean6382 Год назад

"Some say that my house is dusty because I don't do housework. But is it really, or is that KEY FRAGMENTS?

@doctorkayne Год назад

Glad to see you are growing as a host, you sound way more confident and fluid compared to your first vids. Thank you and the team for putting out all the knowledge you do :)

@MBMCincy63 Год назад

I prefer hearing her. She has a calming voice.

@florinadrian5174 Год назад

Yes, she did great here. And the good script on a fascinating subject helped.

@xINVISIGOTHx Год назад

why are saturn's rings mostly ice if they used to be a planet

@stargazer5784 Год назад

The moons out there contain huge quantities of ice.

@sbadvi Год назад

Well, this video didn’t age well. Jupiter just today surpassed Saturn with the discovery of 12 new moons.

@robertt9342 Год назад

That Saturn reference was pretty good.

@MBMCincy63 Год назад

And if they're not in the fridge, check the incoming door: they may be hanging in the deadbolt 🤔😂😂

@mathieuleader8601 Год назад

the moon is where all our lost socks go hahaha

@nunya___ Год назад

At 3:34 Wait!...There's a new Jovian moon called Jaropa?

@Ngamotu83 Год назад

So what about the rings around other planets? Jupiter has a few rings, as does Uranus and Neptune. Did they get their rings by smashing some of their own moons, too?

@alarcon99 Год назад

One more reason for me to rage hate Moonfall

@TheReaverOfDarkness Год назад

Mars will likely turn Phobos into a moon eventually.

@chaosopher23 Год назад

The aftermath of comet Shoemaker-Levi say that a moon could have been what created the Great Red Spot.

@RickySTT Год назад

5:18 “The team noticed that the moons orbit on opposite sides but the same distance from Mars.” Since when? According to JPL, Phobos has an orbital diameter of 9400 km and an orbital period of 7.66 hours, and Deimos has an orbital diameter of 23500 km and an orbital period of 30.3 hours.

@nathanball99 Год назад

I came here to say that. The orbital parameters are entirely different! They're not even close.

@stile8686 Год назад

Agreed. The strange similarity is that they both have circular-ish orbits near the equator which would be strange if they are captured asteroids but they are at way different altitudes and orbit past each other all the time. I bet the writers of the paper would be astonished to hear the line about opposite sides and same distance from Mars.

@scishowspace Год назад

Ah. This is a mistake that got past our fact checkers! The two moons are on opposite sides of the synchronous radius, which is not the same as them being the same distance from Mars.

@stile8686 Год назад

@@scishowspace Ah that makes a lot more sense. Thanks.

Год назад

What about lost moon of Poosh? 🌝

@TheWolfHowling Год назад

If my housekeys are ever inside the refrigerator, something has clearly gone wrong in my day/week/life

@TheRealPaulMarshall Год назад

@5:18 - How are 9000-ish km and 23000-ish km the same distance? As they appear to be going in opposite directions as seen from the surface, how do they stay on opposite sides of Mars?

@nathanball99 Год назад

You're right, the statement is wrong.

@filonin2 Год назад

The statement is silly and wrong and it really shows how little they know that they read it out without laughing.

@garethdean6382 Год назад

This is actually part of the argument. The initial paper argued that the moons WERE at the same distance with the breakup leading to an increasing separation due to atmospheric drag on the innermost moon. The rebuttal claims to show that this doesn't add up. As you can guess the original claim is far from watertight.

@varamyrsickskinzz7355 Год назад

How did the astronomers suggest Phobos and Deimos get smashed apart a billion years ago? There weren't astronomers back then.

@GoldMan-h7i 3 месяца назад

planet nine react too chrysalis : 😭 all react too chrysalis : 😭😭😭😭😱😭😭😭

@RichHomieSlimee Год назад

So how many moons did Saturn destroy because I know one moon was big enough to create that massive ring!???!!

@SolaceEasy Год назад

I have now watched two SciShow Space videos, and I will never watch another one again. I am intelligent, not in your target audience.

@stax6092 Год назад

Neat.

@digitalatom6433 Год назад

Earth may have also lost a moon when the first one was formed, according to a recent simulation.

@erikswanson5753 Год назад

Saturn now has a total count of 102 moons. Jupiter has 93.

@tolic14ever Год назад

The link to your earlier video 6:20 ..at the end of this one, is not working.. put a (i) tag which appears in the right upper corner....or add link to descriptions, last case scenario add it pinned in the comment section. Thank you for the efort in sharing knowladge..❤

@ryanhiggins8869 Год назад

Found a moon in my fridge… but it was just a rump roast… so not quit a full moon, I guess

@Blaaake Год назад

Where does someone get a shirt with a collar that large? Goodness.

@CyFr Год назад

Well I mean Earth practically stole a whole ass planet and made it into a moon.

@avishalom2000lm Год назад

So 99% of our Solar System's mass is in the Sun. And of the remaining 1%, 99% of that is in Jupiter. And of the stuff orbiting Jupiter, 99% of that is in four of its moons.

@derhkist Год назад

So, Saturn ate one of his children ... interesting.

@ambeegaming76 Год назад

Jupiter eating it's moons sounds familiar lol

@_maxgray Год назад

"Bad news for the moon, good news for anyone who likes looking at pretty planetary structures!" Savannah just gets more and more fun as they settle into being a host, that intonation was perfect 🤣

@mattduncil Год назад

I found it! They where left in the door lol

@mobailey6666 Год назад

What if Earth had a ring? What would we see? What if Earth didn’t have a moon?

@erikswanson5753 Год назад

If Earth didn't have a moon I don't think we would even be here.

@EliotHochberg Год назад

Does anyone think that a sucked and Moon could be the reason for the big red spot on Jupiter? I know that the center of Jupiter is probably comparatively small, but could it be that when the moons hit they create some kind of a feature which then causes the storms to shape the way they do as we see them at the surface?

@bbbenj Год назад

Interesting.

@thomaspearce4359 Год назад

Everywhere

@FUnzzies1 Год назад

Eewwwwwww

@dlatua Год назад

5th

@massimookissed1023 Год назад

It was never a moon, it was a space station.

@e_j_ Год назад

thumbnail reminded me of the outer wilds quantumn moon 🌚

@thesilentone4024 Год назад

What about the ort cloud.

@_andrewvia Год назад

Yay Savannah!

@_andrewvia Год назад

- although whomever is editing the video makes it seem that Savannah never has to take a breath. They talk fast and clearly, and the tech edits out any blank moments, and the whole thing goes whoosh! Lots of information in a short time.

@TheGahta Год назад

2:45 that made my sides hurt 🤣🤣

@chippysteve4524 Год назад

Fascinating stuff and really well explained too! It's so much to take in in one go that perhaps if you spoke more slowly then a mere mortal like me wd be able to keep up in real time :-)

@Caracal-lm6es Год назад

Missing moons? Kinda like Vulcan the missing planet?

@RoxaneJ14 Год назад

I'm not fat, I'm just too massive for my own good 😂

@gollem148 Год назад

This video seemed too much "spun-up" to grasp all the intel, especially the part where researches proposed something and then others challenged it.

@architude Год назад

Is this a hypothetical revenue add raising waste of time and basic knowledge premise of how do solar systems work as we know it. Oh, yeah.

@faenethlorhalien Год назад

I do the same to hamburgers when they get really close to me, but it's not tidal forces, but by mouth, that does the job, har har har MEAT.

@mbdzel Год назад

Damn. How did we lose a moon. I mean we screwed we erything ellse in tne universe up so this has to be humanities fault.. right.

@Apeiron242 Год назад

Why are you asking us? YOU'RE the science communicators.

@MarkVallevand Год назад

Andrei, You've lost another submarine?

@General12th Год назад

Hi Savannah!

@filonin2 Год назад

5:18 Mars' moons DO NOT orbit opposite sides of Mars at the same distance, that is absurd. Phobos orbits more than twice as close as Deimos and hence at a different rate, so they could never remain on opposite sides of Mars for more than a few minutes. Who wrote this?! Why did Savannah read this silly thing?

@ChrisPikeEnterprise Год назад

Savanna talks way too fast. Please slow down…the pace is a bit frenzied and difficult to listen to and process.

@queens.dee.223 Год назад

It's always great to see Savannah.

@osmosisjones4912 Год назад

Wonder if those super earths have early sized moons

@PrayTellGaming Год назад

I know I'm going to sound way too picky here, but why are you using the word "moon" instead of the proper term "natural satellite?"

@yergot3077 Год назад

Can you tell your CGI person to tone down the Displacement map on Mars at 5:57? Mars looks like it got scratched with coarse sandpaper.

@prashantpandya2933 Год назад

Too much of assumption... Hard to believe too many what ifs

@Charok1 Год назад

Not enough moons? I'll drop my pants then.

@peter4210 Год назад

I tough this was gonna be some more nonsence about the dark matter hypothesis. I was about to go off on a rand about how correlation does not imply causation and that its been 100 years with out proof for a theory that assumes that our physics and mathematics are perfect when they are not. Thankfully I dont have too.

@filonin2 Год назад

You assume science is based upon assumption. It is not. Look up Dunning Kruger.

@peter4210 Год назад

@@filonin2 Never said I assumed anything, you just put words in my mouth. Look up dunning kruger

@josgibbons6777 Год назад

We're also likely missing at least one giant planet. en.wikipedia.org/wiki/Five-planet_Nice_model

@ZennExile Год назад

I don't like the fat baby moon hypothesis at all. Simulations full of collisions and explosions are more fun.

@phyllisbramlett2330 Год назад

I just love the way Savannah tells us how things work. Thank you Savannah.

@DoctorX17 Год назад

They're a natural fit!

@DrBunnyMedicinal Год назад

Yes, she's a great host!

@DoctorX17 Год назад

@@DrBunnyMedicinal very great! Just an FYI, Savannah uses they/them pronouns (SciShow videos usually have the host’s name and pronouns in the description)

@filonin2 Год назад

She's flat out wrong and doesn't realize it @ 5:18. She doesn't seem to understand what she's reading.

@DoctorX17 Год назад

@@filonin2not all of the hosts are themselves experts on what’s being presented; often they’re simply reading a script another team wrote. So they might not understand it or recognize errors