Impact comparison - from a 3cm object to Jupiter (SPH simulations)

Several SPH simulations for various sizes of the target object. The target has 500k particles in all simulations, the number of particles in the impactor varies, depending on its size.
Parameters of the simulations:
1. target 3cm, impactor 0.35cm, angle 30°, speed 3.5km/s, simulation time 4ms
2. target 100m, impactor 10m, angle 30°, speed 5km/s, simulation time 1min 12s
3. target 10km, impactor 1km, angle 30°, speed 5km/s, simulation time 1h 40min
4. target 1000km, impactor 500km, angle 30°, speed 5km/s, simulation time 20h 40min
5. target 69911km, impactor 58232km, angle 15°, speed 30km/s, simulation time 16h 18min
Computed with OpenSPH
pavelsevecek.github.io
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Support my work on / pavelsevecek

[@SunnyBlam]

That Saturn vs Jupiter was probably the most VIOLENT looking explosion I've ever seen.

[@MrUnclehouse]

I wonder how bright this impact would be compared to the Sun.

[@petterlarsson7257]

​@@user-dh2kc1hx3jwhat

[@0eroOverride]

A star... is born lol

[@0eroOverride]

1x sun @@MrUnclehouse

[@nicolascesar19]

​@@MrUnclehouseof star

[@CyberWar666]

Imagine that for all the ludicrous amount of energy these collisions would release, they'd still be little more than firecrackers compared to supernovas or collisions between black holes or neutron stars. The scale of energy release in cosmic events is simply mind-boggling.

[@lixue_izar]

Right??? i always think this. but then supernovas weren’t even a pebble compared to the sheer force of the big bang.

[@NotUwU-_-]

The energy that last thousand light years

[@petterlarsson7257]

​@@lixue_izarit wasn't an explosion

[@lixue_izar]

@@petterlarsson7257 It was rapid expansion that caused a huge flow of energy & heat which literally created atoms. Im pretty sure that could be classified as an explosion, it’s definitely more than anything we’ve seen on Earth that we’ve considered an explosion, that’s for sure lol.

[@Whenwhereeverywhere]

If these are firecrackers then a super nova would be a hydrogen bomb

[@raulaguilargomez8608]

That moment when Jupiter says his line for the last time "its orbit time" and saved the earth impacting with Saturn was just a love letter to the 7th art itself. I cant imagine a more touching scene than that in history.

[@holymackerel7704]

ok Raul Aguilar Gómez

[@mh049]

Truly a gorgeous moment

[@CarlosAM1]

certainly one of the moments of all time

[@wenaldy]

It's morbin' time

[@infinityggg]

Then started orbiting all over the place 🤯🤯😎😭

[@Mica_I1A]

1:40 The smiling sphere 🌚🌚

[@immagical7036]

Looks like he’s monching

[@histiest1628]

what were the initial velocities and angles?

[@pavelsevecek]

I added the parameters to the video description.

[@gochgo]

I should stop missing out on these amazing simulations

[@Edvit40]

hi the battle bricks guy from boblox

[@alyshaikhon7166]

The Jupiter and Saturn collision was the most destructive thing I’ve seen today

[@notbrandon8612]

1:30 The planet basically became inside-out

[@eduardocarranza4333]

Good point

[@oystercatcher943]

Very nice. But I'm a bit confused/surprised that a 3cm impactor can possibly make any different at all to Jupiter!

[@montech5647]

Highly unlikely...

[@badmonkey1686]

It's not a rocky planet also. Not a good example of impact on a GAS giant.

[@asheep7797]

Check the desc.

[@nickd3871]

These collisions are at light speed so a 3cm object colliding with Jupiter would release a cataclysmic amount of energy.

[@xa-12musk8]

Idk I think 3cm is pretty big.

[@seanenzoblasco2468]

We probably need atleast 2 air conditioners for this

[@dreamodyssey-ambientspace8985]

good job Congratulation.

[@degenetron7590]

I really wanna see 2 planets colliding with each other, would be such an interesting sight to see, especially because its something so astronomically big but still within the timespan of a few hours which a human can easily sit and observe

[@johnnyllooddte3415]

theres an asteroid belt between earth and mars ...duhhhhhh

[@tajuddinahmed3379]

​@@johnnyllooddte3415 It's between Mars and jupiter....

[@tajuddinahmed3379]

​@@johnnyllooddte3415So what? Asteroid impacts and planetary collisions are different

[@OGdirty1Kanobi]

What are you making this with? Looks awesome

[@pavelsevecek]

Check the video description.

[@thantsag5830]

Awesome but incredible inaccurate, i mean a 3cm object even at speed 99.999% the speed of light can do nothing important to Jupiter or even our moon

[@OGdirty1Kanobi]

​​@@pavelsevecek what's the name of the simulation program I see the parameters was wondering if it's an actual program or if your just using an engine and doing it yourself? Is sph simulations a program or your own thing I guess is what I'm asking

[@pavelsevecek]

@@thantsag5830 Obviously, the 3cm object collides with a 0.35cm object, not Jupiter.

[@pavelsevecek]

@@OGdirty1Kanobi The program is called OpenSPH, there is a link in the video description.

[@aSpyIntheHaus]

Is that just the heat of collision shown in the Jupiter model? More so, does this sort of impact briefly ignite any fusion reactions that add to the heat of the final body? Cheers,

[@pavelsevecek]

It's the heat from the collision + the internal heat of Jupiter's mantle. Nuclear reactions are not simulated here.

[@aSpyIntheHaus]

@@pavelsevecek thanks mate. Love your work and cheers for the reply?

[@tajuddinahmed3379]

​@@aSpyIntheHausyou sound like a aussie

[@moistfeet3626]

1:43 has a smile

[@mcashlermeim]

that jupiter turned to the biggest sun while the saturn vs jupiter almost ended

[@KosmataBradva]

Saturn went in style, bombing Jup with the ring, then killing itself in it.

[@TheOicyu812]

Interestingly, . . . . this is the piano music that would be playing if this event actually happened.

[@nullbeyondo]

Simulation time is the time inside the simulation or the time it took your hardware to simulate it?

[@pavelsevecek]

It's the time inside the simulation.

[@KAJI9lH]

2:00 gravity on the direct line of attraction is impossible, this is a global misconception. gravity is possible only on repulsion. the planets will not stretch towards each other. they will shrink. it is impossible to push them together, a moment will appear to the side and it will begin to rotate together. there are a lot of such objects in space - paired stars.

[@ljushastighet]

I know a 0 degree impact angle is impossile but it's just a simulation and it dosen't matter that much i mean at least it looks good

[@AlexKane_2024]

I case of Jupiter, there might be thermonuclear reaction have started. Did you calculate this?

[@pavelsevecek]

No, the code does not calculate nuclear reactions.

[@RenatoNãoRusso]

much better than universe sandbox

[@planetballpockets]

Wow. *puts 3D movie glasses on*

[@a-ragdoll]

epic

[@pixels303at-odysee9]

Tiamat.. the remains of the asteroid belt.

[@scooterdooter]

cm is centimeter in this instance?

[@user-ir6hi8od6x]

This is brutal simulation 😅

[@joparicutin]

Can you make it but at a much slower speed? I would like to see if this type of collision can create a Worthington jet. It would be interesting if this could create new satellites.

[@Cor_Netto]

Nice!

[@Heyiya-if]

And here I thought it just went ‘Bonk’.

[@Saberwulfy]

It would be nice: impact on mars or venus + earth consequences. Everyone thinks about direct consequences, but about indirect?

[@rtj1981]

I wonder when computers will be fast enough to run this in less then an hour or even seconds

[@NovaEngineer69]

did i just see a planet get folded inside out

[@petterlarsson7257]

0:30 slow the video down to 0.25x speed to approximately get real time

[@PublicUnknownsBattlegrounds]

from where did you get these calculations?

[@pavelsevecek]

See video description

[@kaxtorplose]

Holy crap. Why stop there? Keep smashing planets and asteroids and comets and stars into one another!

[@OtkixOtkix]

game name? or just a simulation or animation?

[@Destoroyah_Gaming_YT]

Really thought they were forming a new planet 😂

[@Ivan_isplayingbladeball]

Me who needs it: I NEED ITTTT

[@trevorhenderson7965]

THE FIRST ONE IS YUMMY YOGERT

[@zeeninas]

The last one tho 🔥

[@comedyatitsworst]

this will likely drastically affect the mosquito population

[@pavelsevecek]

Good.

[@Okuu__Gaming_1]

How long does it take on average to run the simulation?

[@pavelsevecek]

Usually a few hours.

[@CheesyNugget]

OH THE ECONOMY!!!

[@user-br1yj7ev7y]

Please more please about cosmos and astronomy. Like all about space. All subscriptions about Space. May relax music also

[@snakesaliva]

Did the one at the end end up becoming a star?

[@snakesaliva]

@Aero / Aron 2 [U.P.A 2] *n u c l e a r f u s i o n*

[@TactileCoder]

No. You'd need to collide about 80 more Jupiter sized planets I believe. It's just molten material/rock vapor that's heated up to thousands of degrees.

[@snakesaliva]

@@TactileCoder ah, I thought Jupiter was close enough to being a brown dwarf that a good bit more mass plus heat would set off nuclear fusion

[@c0dehappy]

@@snakesaliva It's "close" in terms of physical size: gravitational compression means Jupiter actually would shrink in diameter with more mass. (Some brown dwarfs could fit inside Jupiter!) But in terms of mass, the smallest deuterium fusors are ~12-13 times more massive, and the smallest stars are ~75-80 times more massive than Jupiter.

[@Elzzy_Arts61]

this new universe sandbox³ prototype looks amazing!

[@herorisk]

lol we wish

[@JordanBeagle]

Does the last one take into account that Jupiter is a gas giant?

[@TigrePlayz]

the better universe sandbox

[@rolandmine6693]

There wouldn’t be any explosion until they both reached each others cores but ya

[@platzhalter2581]

This seems to be wrong in simulation. Shouldn't Jupiter get deformed as well as Saturn before collision? The gravitation of both should tear apart both.

[@ljushastighet]

jupiter is more dense then saturn so it gets deformed a lot less then saturn but it still is getting deformed a little it's just hard to see

[@user-sh4lv3hu1e]

What es that game?

[@linaribaldi3829]

This is most unlikely.... Sone years ago fragments of a comet crushed into Jupiter....we can still see the marks they left.... But nothing really relevant happened to the planet as a whole....

[@Im_Rainrot]

You realize how small comets actually are? Compared to fucking Saturn?

[@robism13]

Good job you have two stars in the solar system it’s now the end of the world

[@DeltaHydrixian]

Are you developing for a game? Because this looks completely Awesome. 100/1

[@zahrannahyan9666]

this isnt a game its a simulation (that takes a lot of time probably days to render), check the description if you want the software he is using

[@DeltaHydrixian]

@@zahrannahyan9666 i have the software and I know what you mean. Im talking about if he’s developing the SPH for Universe Sandbox, because it looks like he is + Universe Sandbox is adding SPH

[@GodofWeird]

I don’t think universe sandbox is adding SPH except maybe for like a fun one off project. Unless we all get quantum computers.

[@theomegapersonyeet2678]

@@GodofWeird They actually mentioned that they were looking in that direction, but were leaning away from sph and towards other methods.

[@osarogiwa-osagie4273]

1:51 new planet

[@yourmom9283]

ur telling me dropping my pen can blow the earth omfg

[@friartux6946]

Can't tell if this is accurate as there is missing info. A 3 CM object would/could not destroy an entire planet as depicted at the velocity depicted. It would have to be going at about 90% the speed of light, or the planet would have to be quite small. We need to know the speed of the objects and the size of the target planet.

[@kasimir1359]

The first simulation is a 0.35 cm object colliding with a 3 cm object, not a 3 cm object colliding with a planet.

[@friartux6946]

@@kasimir1359 What is the speed of the smaller object in each collision? And what are the sizes of the bigger objects in the other collisions? Thank you in advance.

[@kasimir1359]

@@friartux6946 All of the sizes and speeds are in the description.

[@adbuuk]

Relative to what ???????

[@PlantProtect2014]

How do I get SpaceSim in phone mobile?

[@JamesthebiggestJamesanimator]

Cant

[@AlanHH]

I’m a little confused - what is striking what?

[@pavelsevecek]

See video description

[@creepercraftytT99]

Is it just me?, Or every impact between 2 large objects always creates perfect conditions for moons to form?

[@yissssss_]

yes, because a lot of debris is ejected which makes it possible for gravity to arrange it into a new object.

[@rodolfonathanieljrangeles4316]

The 3cm object exploded. 0:21

[@abigaelbautista778]

1:49 it looks like an planet again...

[@Ryanair69max]

It just formed a new star

[@coconutbird8093]

No it didn’t, a star has to be at least 80 Jupiters in mass to be a star. The reason why it looked like a star is because it was so hot

[@EJ1512N]

What’s the app called?

[@pavelsevecek]

OpenSPH, see the video description.

[@waveiscursed]

what does sph stand for

[@pavelsevecek]

Smoothed particle hydrodynamics

[@John_Johnson746]

Сразу вспомнил фильм Армагеддон с Брюсом Уиллисом. Это жесть, если такая махина врежется в Землю.

[@thomasyu2198]

seems like Jupiter and Saturn are being treated as solid tho…….nice sim nonetheless

[@LimePharmacy2012]

where is 3 cm?

[@Nl0m]

They collided to what

[@fuselpeter5393]

I would like to know too,

[@johnnyllooddte3415]

ahaha the earth is hit every day by 3cm pieces and bigger and we have yet to do that ahahahaha

[@hipjoeroflmto4764]

Bro what did jupiter do to you

[@hipjoeroflmto4764]

It make you stupider?

[@azreial9863]

But I thought Jupiter is a gas giant. Why would any type of object affect it in that way unless Jupiter is not a gas giant.

[@someworkerdrone23547]

*water noises*

[@AmtrakCitiesSprinter64]

How small is that planet?

[@pavelsevecek]

The sizes are in the video description.

[@johnnyllooddte3415]

how fast

[@intelchip_x86]

imagine having to pay the electricity bill for every rendering

[@andee2126]

2:37 moon is formed

[@thatblueman]

this is sick! but how do you make it 3d? (also for spacesim i think you should make the planets heat eventually go down so you can see what the planets look like afterwards)

[@Masked_VR235]

WHAT THE FUCK IS A KILOMETER!?!?!? *Insert american hawk noise*

[@stimpen12]

What are they colliding with? Like the 3cm object, what does it collide with?

[@pavelsevecek]

The sizes refer to the targets. Impactor sizes are in the video description.

[@chickennuggetman2593]

Jesus christ almighty why are they hitting them so fast

[@igorcsabi-ek3ke7zm4e]

Ez már kezdettől egy elhibázott szimuláció. A Shoemaker-Levi üstökös már csak elég nagyocska lehetett, de távolról sem csinált ekkora ramazurit amikor beesett a Jupiterbe!

[@Higtriulhtrhi]

2:13 what happened to the gravity?

[@herorisk]

the gravity is still there its just more spread out because it was a FUCKING EXPLOSION XD

[@ANGGELAful]

That happened to me once

[@coconutbird8093]

Are you ok?

[@blueStarKitt7924]

3 cm and that amount of destruction?? What is the density of the object and at what speed? The object(s) that crashed on Jupter in 1993/1994 were bigger and the impact way smaller.🤷

[@blueStarKitt7924]

Ok, I didn't read the description box. My bad! 😅

[@user-jm6ml2fe3r]

Andrea Earth is more massive than jupiter, and you know it.

[@andee2126]

0:59

[@neobuilder0]

its will became an star?

[@coconutbird8093]

Something needs at least 80 Jupiters in mass to become a star

[@neobuilder0]

@@coconutbird8093 oh

[@manisaucmikus]

How long does it take to render these simulations?

[@United-Space-Aliance]

3bi years or real time?

[@immagical7036]

1:25 how it feels to stub your toe

[@nicolascesar19]

OF STAR

[@MaximilianoDigeronimo]

Saturn-piter

[@JoeyP946]

I don't think sitting in your bunker would help

[@BfdiSfs]

Spongebob movie Irl be like

[@chinglegitrdx6135]

The Saturn and Jupiter impact would probably create a really small brown dwarf that burns for an extremely short time.

[@non-applicable3548]

May we never know.

[@TheRandomTurtleOfficial]

1:44 who else sees an alien?

[@user-by1pd8it5z]

1:43 was have rock face💀☠

[@user-in2do2xr2o]

Wow I never expected those situations