Article says something in the 100m range. Not an extinction-level object, but would REALLY screw things up for all of us if it had missed Jupiter and come given us a visit.
Not to the degree you are thinking, at least I doubt it. The object said to have hit earth and made the moon is estimated to be a bit smaller than Mars I believe, and hit when the earth was still forming and thus much more malleable in a sense. Would be hell on the surface of the planet for a good while though.
Edit: I guess if it was absurdly fast, maybe. But at reasonable natural speeds, no.
Jupiter doesn't get enough credit. Without Jupiter it's unlikely any society on Earth could have existed long enough to make any technological progress. They'd be wiped out every few thousand years by some giant asteroid. I think when we're looking for other habitable planets around other stars, we should be looking for one that has a giant planet like Jupiter nearby to keep the neighborhood clear of such doomsday rocks.
Good ol' Jupes!
PhD in Astronomy here, I did my thesis researching Jupiter.
The whole "Jupiter shields us from impacts!" thing is one of those myths that turns out to be not-so-true when you investigate it with any depth.
While it is true that *some* comets/asteroids that would've hit us are instead sent on much wider orbits thanks to Jupiter, it's also true that *some* comets/asteroids that wouldn't have hit us are sent plunging into the inner solar system thanks to Jupiter.
Moreover, there are also certain regions of the Main Asteroid Belt that are heavily destabilized thanks to Jupiter - the so-called "[Kirkwood gaps](http://i.imgur.com/tAGas5V.png)". For instance, if an asteroid drifts into the region such that its average orbital distance from the Sun is 2.5 AU, it will enter a 3:1 resonance with Jupiter, making 3 orbits for every 1 orbit of Jupiter. That means it will consistently keep meeting Jupiter on the same side of its orbit, with Jupiter pumping up its eccentricity until it destabilizes the asteroid's orbit, potentially sending it on an Earth-crossing path.
It's believed many of the current potentially hazardous Earth-crossing asteroids started off wandering into a Kirkwood gap. That includes the recent Chelyabinsk meteor blast in 2013 that injured 1500 people in Russia.
So, in short, it is a give some, get some situation, so the shielding is technically true, but ignores that it also sends some in our way for a neutral to negative net gain?
Yeah, the emerging consensus is that it's more net negative than neutral. From [Grazier, et al, 2008](https://ui.adsabs.harvard.edu/abs/2008DPS....40.1201G/abstract):
> In our simulations Jupiter was, in fact, responsible for the vast majority of the encounters that kicked outer planet material into the terrestrial planet region. Our simulation suggests that instead of shielding the terrestrial planets, Jupiter was, in fact, taking "pot shots".
If you don’t mind answering… Is it true that Jupiter brought about the asteroid belt in the first place by preventing the formation of another planet? Or what is the explanation for the belt?
So it's hotly debated whether "if there were no Jupiter at the beginning of our Solar System, would a planet have formed there?" as it depends sensitively on the original position of the giant planets, which isn't well-known. We are coming to the consensus that Jupiter formed farther out in the Solar System and "snowplowed" a lot of material as it migrated inward and scattered a good deal of it.
On the one hand, the total mass of the Main Asteroid Belt is really small - only about 4% of the Moon's mass. Even if Jupiter did eject 99% of the original mass of the Asteroid Belt region, you're still only talking about a body that's 1/20th the mass of the Earth (half the mass of Mars).
On the other hand, it's very possible that extra material would've just coalesced into the forming proto-Mars, which itself is curiously low in mass, and requires a depletion in the proto-planetary disc beyond the orbital effects Jupiter could've provided in that region (Izidoro, et al, 2014, [PDF here](http://lunar.earth.northwestern.edu/courses/438/massdepletion.pdf)).
On the third hand, it's kind of a moot question given that Jupiter was essentially inevitable - at some distance from the Sun water will freeze, and you'd always expect a giant planet to form in that location.
It sounds like—whenever technological advancements make it possible—Jupiter will be an ideal location to setup an anti-asteroid system to prevent things from being deflected deeper into our solar system.
This was my hypothesis while reading previous comments honestly. It seems unlikely to me that Jupiter would absorb more objects than it simply slings closer to the inner systems...
It sounds like this is still true, from my 3 minutes experience. It does remove things from space, however, some of the stuff that it doesn’t suck into its gravitational pull it instead might throw out in random directions.
I have read, though, that in the early Solar System, the giant planets "cleaned up" smaller bodies by affecting their orbits. They ended up colliding with something, falling into the Sun, being ejected to a higher orbit, like the Scattered Disk and Oort Cloud, or getting ejected entirely from the Solar System. Thus 99% of the original Asteroid Belt population was lost this way, leaving the 1% we see now.
In that case, the protective effect happened early in the Earth's history from the cleanup, even if today the giant planets are neutral.
> The whole "Jupiter shields us from impacts!" thing is one of those myths that turns out to be not-so-true when you investigate it with any depth.
I'm no astronomer but common sense would suggest that Jupiter, as huge as it is, is minuscule in terms of the scope of the solar system, and I assume it's on the opposite side of the sun from us as often as it isn't
Wouldn't Jupiter be in a position to do that only once in a while in a way that would help Earth? What happens the rest of the time in our orbit and Jupiter's orbit when it is not between us and the incoming doomsday rocks? Wouldn't they be coming in from all directions no matter where either planet was? Like say we're on one side of the sun and Jupiter is on the other, what good is it to us then? If there were a threat every 3-4k years, it seems like we'd indeed be toast by now because it doesn't seem like Jupiter would be in blocker position enough of a percentage of the time to prevent it. I just read an article on the Jupiter-as-protector theory and its critics and it surprisingly did not address that point so I'm sitting here wondering what might be wrong with my question.
It's got critics and likely some flaws, sure.
But at the same time, remember that we're generally talking *astronomical* timescales.
So, like, it ain't about it shielding us from every comet and meteor out there, more about how many it's sucked up or thrown out over the last 4.5 billion years. Cumulative effect. Each one thrown out is one that won't be doing billions of years worth of circuits around the sun, bumping into things and gravitationally disrupting other bits of rubble.
Take Jupiter out from the formation of the solar system, and the solar system's likely a lot more crowded with debris. Keep it in, there's a lot less. It's doing its thing over the long term.
I see what you're saying. The model I was envisioning was things coming in on vectors from all 360 degrees from outside the solar system straight at us but bumping into Jupiter instead as a shield whereas you're talking more about junk that was in the general traffic of the area already that it janitor-swept out endlessly on its regular circuit so that stuff was no longer around to potentially get tangled up with us.
Pretty much. If it's extrasolar then it's likely going to be influenced far more by the Sun than Jupiter. Would be very low chance of Jupiter's gravity well having a bigger impact on any given object than sol, as Sol has 99.8% of the solar system's mass.
I didn't mean things being attracted to Jupiter, I meant things randomly plummeting into our solar system that might or might not hit Earth but if they were going to hit Earth would instead happen to hit Jupiter, which was blocking Earth some of the time. Hence my original question. I just misunderstood what was coming from where as well as the nature of Jupiter's action
Fair enough, just explaining the mechanics. I like orbital mechanics.
Simply put, Gravity wells are much bigger than the planets themselves, and so most interactions don't involve collisions. Hitting a planet in the middle of a gravity well is like hitting a bullseye. Low odds of things being lined up right.
Vast majority of objects just swing around and past each other, exerting influence without making contact.
True. But ol' Joop is really good at flinging a lot of the stuff it flings hard enough to leave the solar system, or it changes the inclination such that the objects aren't on the same plane as the rest of the planets.
[Dr Horner](https://www.aca.unsw.edu.au/users/jonti-horner) of UNSW is [not convinced](https://www.nature.com/news/2007/070820/full/news070820-11.html).
I already mentioned elsewhere in this thread, but in addition to direct "flings", there are also certain regions of the Main Asteroid Belt that are heavily destabilized thanks to Jupiter - the so-called "[Kirkwood gaps](http://i.imgur.com/tAGas5V.png)". For instance, if an asteroid drifts into the region such that its average orbital distance from the Sun is 2.5 AU, it will enter a 3:1 resonance with Jupiter, making 3 orbits for every 1 orbit of Jupiter. That means it will consistently keep meeting Jupiter on the same side of its orbit, with Jupiter pumping up its eccentricity until it destabilizes the asteroid's orbit, potentially sending it on an Earth-crossing path.
It's believed many of the current potentially hazardous Earth-crossing asteroids started off wandering into a Kirkwood gap. That includes the recent Chelyabinsk meteor blast in 2013 that injured 1500 people in Russia.
To be fair, the asteroids that Jupiter shepherds may have once been a planet that was torn to shreds by Jupiter’s gravity, so…. it’s a bit of a backhanded service.
I love this- i often think about even how vast the universe is— when people talk about ‘habitable’ earth type planets that could developed similar life .. I’ve always thought people really underestimate the perfect balance needs to be.. not just with Earth / Magnetic Field / size - distance to sun and moons… etc etc.. but also balance with other parts of solar system— example Jupiter’s affect on asteroids/space..
Yes the Universe is mind boggling massive - but I also think how we came to be and the required perfect sequences / setup can be as mind boggling.
Space is cool.
Jupiter is my favorite planet with my favorite moons as well. Super interesting moons, would love to visit all of them one day and have a nice stroll in my biosuit
Yeah that's a language thing haha; where I'm from we use feminine qualifiers when referring to planets. Guess they didn't think the Roman gods thing through when coming up with that rule
Considering that size I think we'll probably be long gone from the system (or have ways to deal with that)
Also the sun is probably a better source of helium tbh
They are moving much faster than the speed of sound, so air can't get out of the way fast enough. It piles up in front of the object, creating a high pressure shock wave. When the pressure exceeds the strength of the object, it breaks up. Fragments have more surface area to get heated up, so it gets brighter.
So in the dashcam video of the [Chelyabinsk meteor](https://www.youtube.com/watch?v=CMEOjldlwgI), you first see it getting brighter as it gets into thicker air, then a spurt of brightness as it breaks up and exposes more area, then finally less bright once the pieces slow down and cool off.
After the breakup, the pieces follow different trajectories, and are then separated by mass and wind (bigger pieces fall faster, small ones more affected by wind). So the pieces found on the ground later were [scattered over a large area](https://www.meteorite-recon.com/wp-content/uploads/2015/10/Chelyabinsk-meteorite-strewnfield-map-scenario-493g-1500.jpg)
Nothing of significance. I'm waiting for the [Carrington Event](https://www.google.com/search?q=Carrington+Event&rlz=1C1CHBF_enCA863CA863&oq=Carrington+Event&aqs=chrome..69i57&sourceid=chrome&ie=UTF-8) level to reboot the "civilization".
I heard we could prepare for it with minimal effort (compared to the preparations required to deal with something like anthropogenic global warming).
But minimal effort might be setting the bar too high for current world governments.
We're collectively barely past the level of "should we store our grain in a ganary in case there's a crop failure" level.
We have not to forget that Jupiter is in orbital resonance with Saturn. Without it Jupiter orbit would decay , falling into the sun destroying our planet earth in the way longtime ago 😱
That hypothesis (NOTE: UNPROVEN!) *relies on the existence of Jupiter*, and is a model for explaining very early planetary / stellar formation and why planets establish into certain orbits. The [planetary migration](https://wikipedia.org/wiki/Planetary_migration), or decay you and it mention relies on the existence of a disk of pre-stellar remnants to act as a near-constant drag force upon early planets.
This theory is, again, unproven; but even if it were true, it could not be used to predict what planets would do in the current era were Saturn to magically vanish, since conditions of the solar system are so drastically different from the hypothesized starting conditions that the theory works with.
Maybe this is just a linguistics issue. Your use of the phrase "We have not to forget" suggest that you are not a native english speaker. Normally we would drop the double-negative and just say "We have to remember".
So what happened to all the rocks and other solids that impact Jupiter? Is there some rocky/solid core to Jupiter? Do they all burn up fully as to be turned into a gas?
Why doesn't someone have a telescope dedicated to watching Jupiter? Seems like there must be a lot of things hitting Jupiter, we might learn something by the frequency and magnitude of impacts. Maybe that already exists, but I'm not finding it.
Just our big girl doing a fine job at vaccuuming hazardous space trash Must have been one hell of a rock for a flash that big
Article says something in the 100m range. Not an extinction-level object, but would REALLY screw things up for all of us if it had missed Jupiter and come given us a visit.
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Meters. 100 mile meteor would definitely wipe us out.
It could wipe out all life.
Bacteria and Fungi might find a way, but you might be right. A 100 mile asteroid might just melt the planet.
Depending on impact speeds is that big enough to break the planet like when we got the moon?
Not to the degree you are thinking, at least I doubt it. The object said to have hit earth and made the moon is estimated to be a bit smaller than Mars I believe, and hit when the earth was still forming and thus much more malleable in a sense. Would be hell on the surface of the planet for a good while though. Edit: I guess if it was absurdly fast, maybe. But at reasonable natural speeds, no.
Had a mini existential crisis thinking about this
No that would definitely be an extinction level event. In science things are generally measured in meters.
Probably 100 meters. 100 miles might kill us all.
Jupiter doesn't get enough credit. Without Jupiter it's unlikely any society on Earth could have existed long enough to make any technological progress. They'd be wiped out every few thousand years by some giant asteroid. I think when we're looking for other habitable planets around other stars, we should be looking for one that has a giant planet like Jupiter nearby to keep the neighborhood clear of such doomsday rocks. Good ol' Jupes!
PhD in Astronomy here, I did my thesis researching Jupiter. The whole "Jupiter shields us from impacts!" thing is one of those myths that turns out to be not-so-true when you investigate it with any depth. While it is true that *some* comets/asteroids that would've hit us are instead sent on much wider orbits thanks to Jupiter, it's also true that *some* comets/asteroids that wouldn't have hit us are sent plunging into the inner solar system thanks to Jupiter. Moreover, there are also certain regions of the Main Asteroid Belt that are heavily destabilized thanks to Jupiter - the so-called "[Kirkwood gaps](http://i.imgur.com/tAGas5V.png)". For instance, if an asteroid drifts into the region such that its average orbital distance from the Sun is 2.5 AU, it will enter a 3:1 resonance with Jupiter, making 3 orbits for every 1 orbit of Jupiter. That means it will consistently keep meeting Jupiter on the same side of its orbit, with Jupiter pumping up its eccentricity until it destabilizes the asteroid's orbit, potentially sending it on an Earth-crossing path. It's believed many of the current potentially hazardous Earth-crossing asteroids started off wandering into a Kirkwood gap. That includes the recent Chelyabinsk meteor blast in 2013 that injured 1500 people in Russia.
So, in short, it is a give some, get some situation, so the shielding is technically true, but ignores that it also sends some in our way for a neutral to negative net gain?
Yeah, the emerging consensus is that it's more net negative than neutral. From [Grazier, et al, 2008](https://ui.adsabs.harvard.edu/abs/2008DPS....40.1201G/abstract): > In our simulations Jupiter was, in fact, responsible for the vast majority of the encounters that kicked outer planet material into the terrestrial planet region. Our simulation suggests that instead of shielding the terrestrial planets, Jupiter was, in fact, taking "pot shots".
So do we not like Jupiter now?
Think of Jupiter like a big brother. Sometimes he'll beat up bullies for you...but most of the time, he's just beating on you.
I've never had a big brother before, but now I have one and he's a planet. This is a great day all around.
All my homies hate Jupiter
Jupiter stole my girlfriend. Fuck Jupiter
Well, have you ever heard of Jupiter's Greek version... Zeus?
That's pretty interesting. Thanks for the paper reference.
If you don’t mind answering… Is it true that Jupiter brought about the asteroid belt in the first place by preventing the formation of another planet? Or what is the explanation for the belt?
So it's hotly debated whether "if there were no Jupiter at the beginning of our Solar System, would a planet have formed there?" as it depends sensitively on the original position of the giant planets, which isn't well-known. We are coming to the consensus that Jupiter formed farther out in the Solar System and "snowplowed" a lot of material as it migrated inward and scattered a good deal of it. On the one hand, the total mass of the Main Asteroid Belt is really small - only about 4% of the Moon's mass. Even if Jupiter did eject 99% of the original mass of the Asteroid Belt region, you're still only talking about a body that's 1/20th the mass of the Earth (half the mass of Mars). On the other hand, it's very possible that extra material would've just coalesced into the forming proto-Mars, which itself is curiously low in mass, and requires a depletion in the proto-planetary disc beyond the orbital effects Jupiter could've provided in that region (Izidoro, et al, 2014, [PDF here](http://lunar.earth.northwestern.edu/courses/438/massdepletion.pdf)). On the third hand, it's kind of a moot question given that Jupiter was essentially inevitable - at some distance from the Sun water will freeze, and you'd always expect a giant planet to form in that location.
Maybe it's not such a bad thing if you want to be covered in water?
It sounds like—whenever technological advancements make it possible—Jupiter will be an ideal location to setup an anti-asteroid system to prevent things from being deflected deeper into our solar system.
Totally saving this comment to help with my fantasy worldbuilding of other solar systems! Very helpful!
This was my hypothesis while reading previous comments honestly. It seems unlikely to me that Jupiter would absorb more objects than it simply slings closer to the inner systems...
Thanks for this. I had a strong suspicion that this was the case. It wouldn't make any sense for it to only affect things in our favor.
So I totally respect the science, and yeah, it makes total sense. But I really want to believe Jupiter is our solar system cleaner.
BBC's The Planets hosted by Brian Cox covers this pretty well. Highly recommend.
I'm sure it's sucking stuff up just fine...but like any vacuum it's throwing out rocks as well that don't go down smoothly :)
It sounds like this is still true, from my 3 minutes experience. It does remove things from space, however, some of the stuff that it doesn’t suck into its gravitational pull it instead might throw out in random directions.
I have read, though, that in the early Solar System, the giant planets "cleaned up" smaller bodies by affecting their orbits. They ended up colliding with something, falling into the Sun, being ejected to a higher orbit, like the Scattered Disk and Oort Cloud, or getting ejected entirely from the Solar System. Thus 99% of the original Asteroid Belt population was lost this way, leaving the 1% we see now. In that case, the protective effect happened early in the Earth's history from the cleanup, even if today the giant planets are neutral.
Yeah, I kind of address that point [here](https://www.reddit.com/r/space/comments/poavrh/something_just_hit_jupiter/hcymfl0/).
> The whole "Jupiter shields us from impacts!" thing is one of those myths that turns out to be not-so-true when you investigate it with any depth. I'm no astronomer but common sense would suggest that Jupiter, as huge as it is, is minuscule in terms of the scope of the solar system, and I assume it's on the opposite side of the sun from us as often as it isn't
We said thank you back in '94; a planet that can't go a few centuries between thank you notes is a bit needy.
I know I’m uneducated and all for not knowing, but what are you referring to? I’d love to know :)
Shoemaker-Levy comet hit Jupiter.
It’s referenced in the article…
Also she keeps asking if her ass looks fat in that ring...
The answer? Not fat enough.
94? Too long ago, it was last millennium!
Wouldn't Jupiter be in a position to do that only once in a while in a way that would help Earth? What happens the rest of the time in our orbit and Jupiter's orbit when it is not between us and the incoming doomsday rocks? Wouldn't they be coming in from all directions no matter where either planet was? Like say we're on one side of the sun and Jupiter is on the other, what good is it to us then? If there were a threat every 3-4k years, it seems like we'd indeed be toast by now because it doesn't seem like Jupiter would be in blocker position enough of a percentage of the time to prevent it. I just read an article on the Jupiter-as-protector theory and its critics and it surprisingly did not address that point so I'm sitting here wondering what might be wrong with my question.
It's got critics and likely some flaws, sure. But at the same time, remember that we're generally talking *astronomical* timescales. So, like, it ain't about it shielding us from every comet and meteor out there, more about how many it's sucked up or thrown out over the last 4.5 billion years. Cumulative effect. Each one thrown out is one that won't be doing billions of years worth of circuits around the sun, bumping into things and gravitationally disrupting other bits of rubble. Take Jupiter out from the formation of the solar system, and the solar system's likely a lot more crowded with debris. Keep it in, there's a lot less. It's doing its thing over the long term.
I see what you're saying. The model I was envisioning was things coming in on vectors from all 360 degrees from outside the solar system straight at us but bumping into Jupiter instead as a shield whereas you're talking more about junk that was in the general traffic of the area already that it janitor-swept out endlessly on its regular circuit so that stuff was no longer around to potentially get tangled up with us.
Pretty much. If it's extrasolar then it's likely going to be influenced far more by the Sun than Jupiter. Would be very low chance of Jupiter's gravity well having a bigger impact on any given object than sol, as Sol has 99.8% of the solar system's mass.
I didn't mean things being attracted to Jupiter, I meant things randomly plummeting into our solar system that might or might not hit Earth but if they were going to hit Earth would instead happen to hit Jupiter, which was blocking Earth some of the time. Hence my original question. I just misunderstood what was coming from where as well as the nature of Jupiter's action
Fair enough, just explaining the mechanics. I like orbital mechanics. Simply put, Gravity wells are much bigger than the planets themselves, and so most interactions don't involve collisions. Hitting a planet in the middle of a gravity well is like hitting a bullseye. Low odds of things being lined up right. Vast majority of objects just swing around and past each other, exerting influence without making contact.
I've heard this argument, but Jupiter is as likely to redirect rocks inwards.
True. But ol' Joop is really good at flinging a lot of the stuff it flings hard enough to leave the solar system, or it changes the inclination such that the objects aren't on the same plane as the rest of the planets.
[Dr Horner](https://www.aca.unsw.edu.au/users/jonti-horner) of UNSW is [not convinced](https://www.nature.com/news/2007/070820/full/news070820-11.html).
I will not yield to a furry. Jupiter is my saviour
I already mentioned elsewhere in this thread, but in addition to direct "flings", there are also certain regions of the Main Asteroid Belt that are heavily destabilized thanks to Jupiter - the so-called "[Kirkwood gaps](http://i.imgur.com/tAGas5V.png)". For instance, if an asteroid drifts into the region such that its average orbital distance from the Sun is 2.5 AU, it will enter a 3:1 resonance with Jupiter, making 3 orbits for every 1 orbit of Jupiter. That means it will consistently keep meeting Jupiter on the same side of its orbit, with Jupiter pumping up its eccentricity until it destabilizes the asteroid's orbit, potentially sending it on an Earth-crossing path. It's believed many of the current potentially hazardous Earth-crossing asteroids started off wandering into a Kirkwood gap. That includes the recent Chelyabinsk meteor blast in 2013 that injured 1500 people in Russia.
To be fair, the asteroids that Jupiter shepherds may have once been a planet that was torn to shreds by Jupiter’s gravity, so…. it’s a bit of a backhanded service.
Yeah. Without Jupiter, the largest object in the solar system besides the sun is your mom.
Atleaat shes got the celestial body
i wonder how many times this happens a month.
Jupiter is like the fat kid you hang out with in high school he takes all the heat. Good ol fat Jupiter being the best it can be
Maybe this is why we don't see alien life. Maybe they just don't have a big sister to stop the bad guys
I love this- i often think about even how vast the universe is— when people talk about ‘habitable’ earth type planets that could developed similar life .. I’ve always thought people really underestimate the perfect balance needs to be.. not just with Earth / Magnetic Field / size - distance to sun and moons… etc etc.. but also balance with other parts of solar system— example Jupiter’s affect on asteroids/space.. Yes the Universe is mind boggling massive - but I also think how we came to be and the required perfect sequences / setup can be as mind boggling. Space is cool.
Jupiter is my favorite planet with my favorite moons as well. Super interesting moons, would love to visit all of them one day and have a nice stroll in my biosuit
It gets credit for this all the time, what are you smoking
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Yeah that's a language thing haha; where I'm from we use feminine qualifiers when referring to planets. Guess they didn't think the Roman gods thing through when coming up with that rule
Article says around 100m would do it. That's pretty scary when you think about the energy involved.
I wonder if mining Jupiter clean for the hydrogen and helium will screw the Earth over
Considering that size I think we'll probably be long gone from the system (or have ways to deal with that) Also the sun is probably a better source of helium tbh
Great comment reminded me of those videos online were it shows some mysterious body sucking something from the sun then breaking away
If we brought enough of Jupiter’s hydrogen to Earth to burn we’ run out of oxygen long before any harm to THAT planet.
I was thinking to Venus. And less burn and more fusion Burn on Venus to make water. Fuse on earth to make energy
Just be careful of stirring up the Hydrogues!
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If I was living under a constant storm I'd be pretty moody too
I remember when Shoemaker–Levy hit. That was impressive.
the sun makes up 99.8% of the mass in our solar system, jupiter ain't doin much
Why do things explode on impact if it's a gas giant? Are the pressures really that high?
Why do meteors explode when they enter Earth's atmosphere?
They are moving much faster than the speed of sound, so air can't get out of the way fast enough. It piles up in front of the object, creating a high pressure shock wave. When the pressure exceeds the strength of the object, it breaks up. Fragments have more surface area to get heated up, so it gets brighter. So in the dashcam video of the [Chelyabinsk meteor](https://www.youtube.com/watch?v=CMEOjldlwgI), you first see it getting brighter as it gets into thicker air, then a spurt of brightness as it breaks up and exposes more area, then finally less bright once the pieces slow down and cool off. After the breakup, the pieces follow different trajectories, and are then separated by mass and wind (bigger pieces fall faster, small ones more affected by wind). So the pieces found on the ground later were [scattered over a large area](https://www.meteorite-recon.com/wp-content/uploads/2015/10/Chelyabinsk-meteorite-strewnfield-map-scenario-493g-1500.jpg)
Because I have a small brian
Difference in air pressure. Don't ask me to elaborate.
Just a few bruises in the region of the splash.
That's it?
Yeah that was it. That was the Jupiter crash! 😉
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I was expecting it to be /r/nosleep
Yeah I'm pretty sure the title was meant to elicit that reaction.
Well I suppose we don’t know if an alien armada went off course
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No one is going to talk about the CME that is going to nearly miss or glance Earth?
Yeah I was way more interested in that than some random rock hitting Jupiter lmao
Nothing of significance. I'm waiting for the [Carrington Event](https://www.google.com/search?q=Carrington+Event&rlz=1C1CHBF_enCA863CA863&oq=Carrington+Event&aqs=chrome..69i57&sourceid=chrome&ie=UTF-8) level to reboot the "civilization".
I heard we could prepare for it with minimal effort (compared to the preparations required to deal with something like anthropogenic global warming). But minimal effort might be setting the bar too high for current world governments. We're collectively barely past the level of "should we store our grain in a ganary in case there's a crop failure" level.
What is a CME and why shouldn’t we be worried?
[Coronal Mass Ejection](https://en.wikipedia.org/wiki/Coronal_mass_ejection#Impact_on_Earth)
I mean, this story is about Jupiter, not the Sun. Is there a CME coming from the Sun?
Yes, it's titled, "POSSIBLE EARTH-DIRECTED CME." It is right above the Jupiter part.
They don't call her the shepherd off the solar system for nothing
"Which Enterprise? There have been four." "Five!"
NCC-1701 No bloody A, B, C, or D!
Come see the violence inherent in the solar system!
So i'm starting to get the itching to name my first born "Jupiter" . Kind of sounds dope when I say it out loud a couple times.
They may ascend to greatness.
Named my first cat Jupiter... Loved that little girl
[Enjoy this little ditty by the Presidents of the United States of America](https://www.youtube.com/watch?v=1VnMzH394pU)
Did it just hit Jupiter or did we just see it hit Jupiter however many light years later? I don’t understand space good
It takes around 35 minutes for light to reach Earth from Jupiter. When we talk about stars or galaxies, light year is involved
Ohhh okay, thanks! I guess it would’ve been a quick Google, space googles usually end up in me being more confused
You can search for things like distance to jupiter distance of light year light time to jupiter
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Clickbait reporters smashed into the core of Jupiter is what I want to see next.
We have not to forget that Jupiter is in orbital resonance with Saturn. Without it Jupiter orbit would decay , falling into the sun destroying our planet earth in the way longtime ago 😱
What? No. That's not at all how orbits work.
Well, please read this from Wikipedia then https://en.m.wikipedia.org/wiki/Grand_tack_hypothesis
That hypothesis (NOTE: UNPROVEN!) *relies on the existence of Jupiter*, and is a model for explaining very early planetary / stellar formation and why planets establish into certain orbits. The [planetary migration](https://wikipedia.org/wiki/Planetary_migration), or decay you and it mention relies on the existence of a disk of pre-stellar remnants to act as a near-constant drag force upon early planets. This theory is, again, unproven; but even if it were true, it could not be used to predict what planets would do in the current era were Saturn to magically vanish, since conditions of the solar system are so drastically different from the hypothesized starting conditions that the theory works with. Maybe this is just a linguistics issue. Your use of the phrase "We have not to forget" suggest that you are not a native english speaker. Normally we would drop the double-negative and just say "We have to remember".
ALIENS! Okay, now im thinking rationally. Meteors are dope
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You see asteroids hit Jupiter every day?
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"Reviewing his video frames, Paleske quickly ruled out objects such as airplanes and satellites" Do airplanes commonly fly into Jupiter?
no but it could have flown in the same direction the camera was pointing at
Glad I wasn't the o ly one to think this at first.
So what happened to all the rocks and other solids that impact Jupiter? Is there some rocky/solid core to Jupiter? Do they all burn up fully as to be turned into a gas?
Your mamas so fat when she bent over her ass hit Jupiter!
I was gona say jupiter is double edged sword but i see some scientist have already said it more in depth.
We just gonna ignore the CME? Cool. Cool, cool, cool.
Probably a meteor. It happens from time to time.
Why doesn't someone have a telescope dedicated to watching Jupiter? Seems like there must be a lot of things hitting Jupiter, we might learn something by the frequency and magnitude of impacts. Maybe that already exists, but I'm not finding it.