Will there be a ring in Mars's future?
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- čas přidán 5. 09. 2024
- Will Mars have a ring around it? Hank Green explains in this episode of Scishow Space News!
Hosted by: Hank Green
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Can we talk about Venus instead? I mean, if you love Mars so much why don't you put a ring on it? Jeez!
+Will Ferrous Because we cant! And what does Venus makes it so special for you then?
+EnricFH PaNDaTa
Joke
Your head
Jake Nash Bro I literally just wrote my comment and you answer?
+EnricFH PaNDaTa I'm even quicker
Nolan Westrope WTF?!
I guess Phobos likes Mars enough to put a ring on it
+Sentinalh more like to be a ring around it
+zocke1r Phobos is pretty attracted to Mars :P Putting a ring on it is just an evolution of that self destructive attraction xD
+Sentinalh Dude, that's gross, Phobos is Mars' son.
sonny19931
Nah, Mars just captured it after it left its parents in the asteroid belt.
+Sentinalh Maybe Mars just wanna make ring outta it and give it to Earthlings as wedding gift..
Tide goes in, tide goes out. People who don't know & can't be bothered to find out why shouldn't be allowed to make decisions that affect the whole country.
I'm wondering whether the ring ill be visible or not. It's a pretty small moon.
I'm guessing it won't be visible from the edge on view unless you can reach out touch the ring material, but it most likely would be visible from an up or down angle from a couple of million miles away. but not from earth, you'd need to use powerful telescopes for that, and still an edge on view would make it really hard to see.
Reading the comments, I'm glad I'm not the only one thinking we could "speed up" the process a little^^
0 dislike club? Yeah, it's a thing. Now, there needs to be a mod for KSP to accelerate time enough to see moons turning into rings.
+Zandonus How big a rig would you need to do that, 1 year can take a while with many craft orbiting about....
We would be talking millions of years, shit man......
Calm down with the simulations would you : P
If not for your patience but think of the Processors...
KSP has no physics like that, so it is impossible.
+azmanabdula I hereby claim that there's got to be that one guy in the modding community, that's going to mod in the half life of elements past a gigayear. And there will sure as hell be a mod for Mun spin speed decay. So ringification is just a matter of time. And yeah, our CPUs probably can't handle it. But. Buuuuut, there's probably some clever trick to make near-copies of the last time period and estimating a variable change... Fast.
Zandonus Good point, there is a n-body physics mod.
Zandonus It wouldnt be the same game, it would be an overhaul like no other....
Im just thinking of the supercomputers needed to run these kinds of events : D
Can we decelerate Phobos now so we don't have to wait 20 Million years please?
***** What? No. In order to lower it's orbit you'd have to slow it down.
+DemonicSquid Yes please
+DemonicSquid if you decelerate it too much you might not get the rings. Debris will fall to the surface. Rings form due to the partial disintegration of Phobos plus their high orbital speeds.
+DemonicSquid
"Deceleration" is a word that shouldn't exist. All changes in velocity, no matter what direction they're in, whether they slow an object down or speed it up, are accelerations.
+Feynstein100 g, acceleration due to gravity is not a constant. Since gravity depends on two factors: mass and distance, the gravitational acceleration is different, depending on which planet you are on and how far away you are from it.
Due to many of the junk satellites we have, will Earth get rings after a while?
+Tomly Funny idea, but they're almost all too slow to maintain an orbit as a collective that resembles a visible ring. Technically, as far as I know, we already have that, if some junk are in a line at the same direction.
+Tomly I'd rather have rings like Kuat.
Rings which are basically Space shipyards in which they construct spaceships.
Funny thing is, you're probably right. Space junk in our atmosphere is a huge problem right now, and of humans weren't around to maintain it the surrounding junk would probably smash into everything surrounding it and eventually it is possible it may form some sort of rings, or just a space cloud.
A Strange Tree I kinda hope it forms rings, if it settled after a while is might look quite nice :)
+Tomly Some say that in the far future, the Moon will begin to spiral towards the Earth again, and once it reaches the roche limit, the Moon will break apart and the Earth will have it's own rings.
That is billions of years from now, though.
I find this all so fascinating. I think the more we find out, and the more we know, the more we realize that we don't know.
Good Vid. As i listened i thought of many questions, you answered them all about 10 seconds after they arose! :D
I swear that the SciShow channels know what I'm thinking. I was just talking about this with my dad a few days ago. Another example is when I spilled some water on my shirt and asked my mom why the water makes my shirt darker then the next day the SciShow video on that came out!
Now to put a damper on this. That ring would be incredibly tiny. You can only see the rings around Saturn because there are a lot of them, one tiny ring around mars would be less visible than that moon that it took us so long to notice, which means technically other rocky planets may have rings we just haven't noticed yet because there are so few of them, and they are so tiny.
+Mariopartyboy2 I say tiny, it would actually be gigantic, what I mean by tiny is that they have little actual mass or volume which would result in them being very very narrow the whole way around the planet even though it is spread over an enormous area.
Hank is the man, thanks for the ideas of what the future may hold!
And then the inhabitants of the Earth will one day look at Mars and say, it used to have two moons and no rings? weird. can't imagine it looking any different.
But will potatoes grow on the ring?
+ljmasternoob
Yes; but only if it's potato chips.
- Science 101
Alex Ribeiro
Now I want onion rings. Is that relevant?
It is, if you're down with math. Lots of it!
I said math??
I mean meth. ( ͡° ͜ʖ ͡°)
Alex Ribeiro
You have an interesting METHod.
Noice
Hey SciShow! I was wondering if y'all could make a series of videos on spacecraft. For example an in depth look at the Soyuz, Dragon, Falcon, etc. That would be really cool.
What's the smallest magnitude impulse that would kick Phobos into its Roche limit in one go? What direction would that impulse be facing? Would it be head on, slowing the moon and dropping it into a lower orbit? Would it be towards Mars, to force it to cross into the Roche limit periodically because of an increased eccentric orbit?
What happens if entering the Roche limit is on a periodic basic, assuming the moon pieces would crumble instead of falling directly down into the planet? Would the "floating" pieces rejoin the planet once it left the Roche limit? Would an orbit quickly deteriorate from crumbling and rejoining and recrumbling, or would there be no difference because it's still the same amount of mass whether its a single mass or floating debris?
That's not how tides work hank! check out pbs spacetime channel to see the correct explanation of tides!
+charlestwoo a bunch of clickbait titles don't make it better.
+charlestwoo
While PBS Spacetime's video seems to be correct, the Roche Limit is a real thing and the reason why all the gas giants have rings.
+Tarinob no...you are correct Hank didn't explain tides. He did however say that the moon causes the tide, which it doesn't. Hopefully Hank will go and watch the space time video a couple of times so he fully understands whats being said and make a correction in the future...and make sure the writers never make that mistake again. Its a common misconception that keeps sticking though.
I just wonder how stable the rings created would be
+chewyfruitloop The moon does cause the tides, and having seen the PBS Space Time video, it seems to me like the description here is perfectly adequate for a quick summary.
+chewyfruitloop If there was no moon, the tides would go away, ergo, the moon causes the tides
I feel like I should be wearing 3D glasses. That is one crazy shirt you got there Hank.
Hank there's a video by PBS Spacetime that explains tides, and apparently you have it wrong, apparently we all have it somewhat wrong. yay learning :)
Pity we can't help it a bit. Whilst a mission would be a costly one, even if it would be approved the satellites and equipment down there are too important.
Mars be lookin fabulous with that ring.
Earth be jelly....
Saturn too
+Dmitry Emanuils (Alina Auer/Emanuils)
I don't think Saturn would be jealous of any planet.... lol
Meh....true. :p
Saturn will lose its rings at some point in the future, not sure about the time though, so it might be jeaous
Awesome video!
I dig the episode, but have a question about the tidal explanation. If the same gravitational force that gives us tides is the one pulling Phobos apart, Then why is there a tidal bulge on the opposite side of the earth?
shouldn't the moon's gravity pull a single bulge of water that would be "deepest" at the center of where the moon and earth are the closet together? Is Phobos "bulging" on its far end like our oceans do here?
Either way it would be really cool to get to see rings form on a planet we can easily watch up close! Video recording quality wasn't so good when Saturn and Neptune got their rings...
How would heavier pieces be pulled inward more? It seems to me it would take more of a loss in energy for the more massive rocks to lose enough momentum to crash into the surface.
Plus 1 for this comment. The big rocks fall sooner idea stuck out like a sore thumb to me also. If basic orbital mechanics applies then this seems nonsensical. Once Phobos breaks up into chunks too small for tidal forces to make smaller, then the tidal force lowering their orbits should also be very small. At some point, even though Mars atmosphere is thin, atmospheric drag should dominate, and that should bring down smaller bits first. Is there some other effect going on?
Can we get that action model showing it getting torn apart? That would be cool.
Just to be sure : the roche limit depends on the object you consider right ?
If Phobos had been denser, the roche limit of Mars would have been smaller, or wouldn't even have existed. Right ?
Hope we'll blow that up so we'll see that ... :3
So how old are Saturn's rings and when will they be gone? Just wondering how lucky we were to see them...
I was thinking collision with demos but tidal shearing works too.
I would love to see a timelaps sim of the moon desintigraring and then mars pulling in the dust.
is it really gravity that will tear it apart, or is it a difference in orbital velocity at the near and the far sides of Phobos?
because as far as I understand it, it's not just rocks falling up into the Phobos skies, but rather its near side travelling faster on an orbit that is 16 km closer to the planet
How big will that ring be? Will it look like Saturn's rings or will it be a haze that we can't tell was there without very powerful telescopes?
Quick question: How low can you maintain orbit above our moon with its near lack of atmosphere, and how fast would that orbit be?
Hey SciShow. I love your videos. It's amazing and the information is really interesting. I had a request as you'll have better resources to know such facts. There has been various articles reading that "black-holes" don't exist and some Indian scientist was right about it. And they found out about it as X-Rays were still been emitted from the black-hole region. Proving that nothing can escape the gravity of black-holes wrong. How true is this? Thanks!
When all the material in the rings reaches the surface of Mars, will their distribution cause an equatorial bulge or is there some mechanism that will spread the material across latitudes more evenly?
Nice shirt
Could we use gravity tractors to place Phobos and Demios inside the Roche limit and speed up the ringing of Mars process?
Obviously. We like it, therefore we shall put a ring on it.
If we made Mars habitable by the point it'd get rings, then we wouldn't have to look to fiction for a habitable planet with rings we'd have one!!! Isn't that just an amazing thought? Imagine living on Mars at that te and how beautiful it would be. God I'd love to see it
Is there any level of acceleration in Phobos' descent, or will it fall at a constant rate until it reached the roche limit?
I swore he said billion. I felt like I missed some significant discovery concerning the timeline expectancy of our solar system!
Okay, now how to do that "getting closer to us" thing to our moon so Earth will be more stylish than Mars? Just, hypothetically speaking, of course.
I think Randall Munroe might have the answer. Perhaps stopping Earth's rotation would be a start?
How long will the transformation from solid object to dustring take? I wonder how the process would be observed from the surface. Will there be a cataclysmic even that breaks up the moon in the time span a human can relate to, or will all of this be so slow that it is not observable for humans. Still how would it look if such a process was simulated, with a perspective from the surface.
Mars Habitable and rings !
informative video
Considering "how long" it will be for it to happen i believe at that time we will have much more technoogy than needed to adjust phobos orbit somehow. Certainly it won't be a good thing to have meteorites raining on the surface of Mars at a time where we might already settled Mars and we are living there. Also losing a moon it's never good, we could use the tiny moon for several experiments and even create a base there to do so.
>Says Mars will probably have a ring in the future
>Me:That's pretty cool!
>....in 20 to 40 million years
>oh
2:12 Hank does that mean Saturn will also eventually lose its rings?
Ooooh... Phobos made a mooooove!
1:26 the animation is wrong. as i understand it, the bulge opposite the moon does not move away from the earth, but rather the whole earth moves towards the moon and the water stays in place. therefore as the moon orbits the earth, the earth does not stay still and spin happily, but it also spins around a common axis with the moon.
Imagine if NASA or some other space agency decided to push the moon to the roch limit just to see what would happen
I was watching a program that talked about the Big Bang and it started me wondering, what direction in space would the center of the day universe be?
So...our moon is also getting closer to us a little at a time (isn't it??) therefore is it logical to assume we'll end up with rings, too?
Pretty epic...
why is the mar's moon falling into the planet, and why is ours escaping away?
+Suyash Shreekant Because physics.
Because why not?
+Suyash Shreekant Because our moon was like I am out of here.
EDIT: OOPS I was completely wrong, never mind, that's embarrassing.
(Archive of incorrect answer below so that peoples replys continue to make sense)
+Suyash Shreekant At any given altitude there is a specific horizontal speed which makes a perfectly even orbit. Slower than that you fall in, faster than that you escape. If you are going very very close to that speed, but just a little off, your orbit could take a long time to fall or escape. Orbits can also be perturbed slightly by impacts, eruptions, quazi-atmospheric drag and tidal forces.
Incorrect TLDR: Our moon happens to be orbiting a little too quickly, while Phobos happens to be orbiting a little too slowly. (Or you could look at it as too high and too low respectively.)
+Estryll Sunt That's wrong. Our planet has more gravitational pull than Mars. The likely reason our moon is getting away may be attributed to our tides and their effect on the gravitational pull between the Earth and the moon. Or maybe simply due to the speed of the moon.
Damnit! Now I can't make a ring joke.
There is a typo in the title of this video. It should be written as mars', not mars's.
What would happen if Phobos was dense enough to not collapse and did smash into mars what would be the following events and would earth be effected by it?
If you watch Cosmos with Neil DeGrasse Tyson, one day of the cosmic year (so far ~13.82Billion years) is around 40Million years. So yes, you were right when saying "on an astronomical scale, that's [practically] tomorrow".
Good one.
Wouldn't the unstable axis of mars cause it to form a shell instead of a ring over time?
Ha! I knew that joke would be snuck in somewhere
So would this also work on our moon if we were to pull it to its roche limit or is our moon not made out of weak stuff?
***** Daww :(
20 to 40 million years into the future? I`ll mark my calendar. 5 people claim they have the first comment, is this a race?
first
+Xander Ellem LOL you can`t be first I was first.
+Tom Quimby first
+Tom Quimby - It's a meme, generally just something people do to try to be funny. It doesn't work and has implications are their personal sense of humor.
Sandwich first
If Phobos likes Mars than it better put a ring on it.
Wouldn't phobos be accelerating towards mars slowly since it is getting closer and closer.
I guess Phobos wouldn't make a big or visible ring if part of its material goes down on Mars and the rest stays in orbit.
Random guy that happens to work for Discovery Channel: - "So, coal in space would be hard to see?" Loud voice: - "Presenting our new show where we talk about 'Gulliblet 0258', a 100% coal dwarf planet that is coming to hit Earth in a few years" Scientist: - "But that..." Discovery channel guy: - "Coal is imposible to see on space. Here, watch this video without context that proves my point and therefore proves every point l'll ever make" Scientist guy: - "We can use other things to detect stuff on space, like gravity on other objects and lasers" Discovery channel: - "Well, on that dwarf planet lives an alien race that managed to make their planet invisible by every possible mean" Scientist guy: - "That's impossible" Discovery channel guy: - "You're right, it has to be a conspiracy between these aliens and Obama... These aliens are the reptile race that so many other powerful humans are under their stolen human skin and they're coming back to colonize once and for all this planet"
...Scientist guy's lawyer: - "And thus, people of the jury, is when my defendant felt compelled to take this man's life in order to keep the world safe from his madness. His words right after he did it were 'Worth it', l rest my case" XD
That intro
I want to have an orbital ring space structure like Kuat....
Mars getting married?
Did Hank say that Phobos is made of bubble wrap?
Considering how change averse humans are, I can see someone in the future who will try to keep all the moons orbiting.
Hank, I would appreciate if you would use your terms properly.
Phobos is under tidal stress
Stress is the force itself, strain is the deformation resulting from that stress.
Wait could capable floating around out there ?
What about Deimos?
You mentioned that the ring will eventually disappear. Does that mean Saturn will lose it's rings in the future as well?
Well... If you like it put a ring on it!
We could give it a little nudge
It's a hard knock life... for phobos.
i always feel so small when i hear thing about space.
but than afterward i watch something about quantum particles . and i feel big agian.
So how does that moon not have a solid super dense core?
Wouldn't the rate increase the closer the moon is?
Will the Phobos ring then accreate to create a Moon?
then will the ring have a stable orbit or will it continue falling towards mars?
It is Frieza and Goku going at it again ripping chunks of rock into the air... xD
So what will happen to the Leather Goddesses of Phobos?
Why does gravity from the moon cause a bulge in the water on both sides of the planet? To me it makes more sense if it only causes a bulge on the side of Earth closest to the Moon.1:27
NVM minute physics explained it.
Why is it that Mars' Moon is spiraling in, but ours is spiraling away from us, outwards?
Why is mars falling? What's making it lose velocity?
That's not how tides actually work!
I vote that we send that we strap massive rockets on Phobos to make this happen in our lifetimes!
"How mars will loose a moon and gain a ring" would have been a much more interesting title.
Cant we just push the rock into the right spot to put a ring on it sooner? :3
How is Phobos slowly getting closer to Mars, but OUR moon is slowly drifting away? Does it have something to do with initial distances?
+Dave Brown Phobos orbits faster than Mars rotates, while our Moon orbits slower than the Earth rotates. Each moon pulls its parent planet so that it bulges outward slightly towards the Moon. Since the Earth rotates faster than the Moon, the bulge is pushed slightly forward from the direct Earth-Moon line, so the Moon gets a slight pull forward in its orbit. Slowly adding velocity causes the Moon to spiral outwards. But, since Mars rotates slower than Phobos orbits, this bulge is slightly behind the direct Mars-Phobos line, causing Phobos to get a slight pull backwards, slowing its orbit, and causing it to spiral inwards.
syzygy Oh ok. That's cool. Thank you so much!!
Whatever will become of the Leather Goddesses of Phobos??
haaaa even I didn't think of the ring on it joke. you guys are smart. and funny. And that's a good combo; I'd get fries with that. Is that a proper use of a semicolon? Colon.
Let's calculate the energy needed to slow Phobos down in 30years...
Wait, aren't there rings on Jupiter Neptune and Uranus too? More like only Merkur, Venus, Earth and Mars have no rings....
But these rings on jupiter are really tuff to see because they are so tiny and fading away and on Neptun and Uranus the rings are not so often seen ,cause of the distance...
hmh
+Achroknight
That's exactly what he said.
question...if we are working under the moon impact theory..then why don't we have rings?
+james stallworth We did, briefly several billion years ago.
+A Phillips oh ok...so they all evaporated in the atmosphere?
james stallworth Yeah pretty much. Ring systems are quite unstable long term. Both Earth and the moon would have sucked up most of the mass and the remaining dust would have blown away on the solar wind.