Universe Sandbox 2 - Creating Moon from Earth and Theia Collision 

The chances that our Moon exists the way it does is relatively small. It's very amazing that it happened here and that we can witness its tidally locked orbit.

You forgot to put everything as it was. In order to get these results, you need the Sun's gravity influence as well that of the other planets

i have much more fun watching your video than playing the game myself

Try creating the solar system out of a nebula

It is just mindblowing how lucky humanity or life in general is to exist. We are just a composition of coincidences...

I did this on my channel and somehow got it first time! I was quite lucky.

What if Crazy Russian Hacker played this? He will say"Look I will make earth theia collide then "*BOOM*" look it collided

Changing the gravity to earths general gravity (9.807 m/s²) May change the results

I've watched this video many times, but never made it to the end, congrats on proving the theory right! It just shows how rare the formation was, the collision is not that rare, but The Moon is quite rare!

I remember when you still had 300 subscribers. I subscribes when you had about 250. Keep up the good work.

This would might work better if Universe Sandbox had 100% accuracy on the calculations .... but that would be severely heavy for the cpu's

I heard that the moon was created when the collision formed a ring that had a high temperature and then eventually formed the moon... they also said the early moon was closer to the earth and somehow got to a higher altitude.

15:39 look at the name of the planet...

There are so many cosmic coincidences pilled up in order to us exist that it makes it very hard to believe we came to existence just by chance.

I think the reason why your experiment tends to fail over time is because the simulation isn't complete, or rather the information input isn't complete. For example, the collision should have happened when the two large bodies had already been rotating around their axis. Besides, looking at the simulation created by the software, it looks not really detailed and realistic, which could be a major problem when attempting to simulate a real life event.

*When you try to simulate the moon creation without the gravity influence of the sun and without the objects even rotating in the first place*

21:26 That moon has a scary face!

What ended up happening in the end is super cool, bc in one specific theory on the collision, theia hit earth, but scraped along it, flying back up, but then hit a t again for the final time, just like what happened at the end there

very interesting video, love ur content!

Just imagine the very first space mining session takes place on Fragments of the Thea and Earth collision and we don't even realize until we actually start mining it...

Maybe Theia Was Smaller And Was CLOSE To Earth At Some Point, So Close That It Loses Orbit Around The Sun And Gains Orbit Around Earth, Making An Elliptical Orbit That Would Stabilize Over Millions Of Years To Later Become Our Moon?

"That wasn't the best collision in the WORLD." * badum CRASH *

That is an amazing idea Anton! Keep vids up man

The crater of Theia is not there. Earth was one ball of molten material after the impact, it wasn't solid enough to "preserve" the impact.

8:13 the 2 fragments are orbiting each other : they are pulling each other in, forming an "orbit" around each other before colliding with earth

I think the simulations confirm the impact hypothesis to be very unlikely.

@15:11 - "Splish-splash" double impact looked much like the Sandia National Labs rendering. The issue is computing power.

awesome video man love it :)

Really loved the video :D

Thanks for making a video from my suggestion.

The impact hypothesis proposed by George Darwin was reviewed in the early 1970s by William Hartmann based on chemical analysis of rocks brought back to Earth by the Apollo missions. The similarity of these to rocks from the Earth's crust (particularly the low iron content) was concluded to show that an object of about one-third the mass of the proto-Earth collided at an acute angle, melting the crust and ejecting enough into orbit for it to form first a ring and then by agglomeration a new body.

Awesome man !

This is super, thanks very much.

I love you're videos and universe sandbox

Theia and Earth made a baby *lenny face*

How do you get the land green when you terraform planets?

This is amazing

+Anton Petrov; First, let me say I applaud anyone who - like you - wants to share knowledge with others. It's so very, VERY important. My question for your is - the moon's 'scary'-looking to you (0:27)?!?! Since humans earliest times, they've gazed in wonder, and awe at his beautiful, silent jewel which hangs there in our sky. Sometimes, I try to imagine (blocking out everything - technology, countries, people, life itself, and just gaze up to behold it, and wonder what it must've been like when there were less people in 100km than the now are in an apparent complex. It's majestic, and in a way it's - to me, at least, a first step trying to comprehend how tiny this habitat of our is, and all the myriad of insignificant issues one can find on this planet, as the inky darkness. Thanks, Anton. 🌕🌖🌗🌘🌕🌖🌓🌒🌔

boi just said little satelite. THAT THING IS ABSOLUTELY HUGE FOR A MOON

Great video, mate. Well, here is my suggestion. We can see that moon1 pushes moon2 into higher orbit each time they move close to each other. Is it possible for you to reveal math behind these orbital mechanics? You could try to create some solar system and show how orbits of planets evolve. Which is exactly what happened with our system, right? Those gas planets were closer to the sun at the beginning and then they went far away from the sun just like Moon went far away from Earth.

Nice vid!

in the sandbox, when you try throwing another planet at earth, it explode into tiny bits which would not help forming the moon, it need to stil have a large fragment

Plz do a huge moon system that involves a huge star with a smaller star orbiting it, and a smaller star orbiting that, and goes on until it's an asteroid orbiting a moon. That would be awesome! :D

i saw a moon be made good job do it again

Maybe its a combination of George Darwin's hypothesis and the Theia Collision hypothesis. Specifically, maybe Theia caused the separation of mass from the proto-earth, and didn't actually collide, meaning it was much smaller.

while we are still on the topic of space and stuff, what do you think of the idea of making a video about the hertzsprung-Russell Diagram?

Note about the "Moon event" at 17:53 - Thea did a double-tap collision. Maybe second impact at much lower speed "squirted" out the main mass of the future Moon? Just a thought.

Also need to calculate in, how fast the earth was spinning at the time of impact. This will affect the debris wrapping around the earth, setting up the orbit

Man, this makes me wish we had 2 moons. We wouldn't be so damn lonely, lol.

This gave an idea. What if the proto-earth already had a smaller proto-moon before the collision. Couldn't the moon have picked up a portion of the ejected material?

Our lives on Earth is randomly made by nature, until the thinking of human made Earth special. Hope that life could be found on other planets.

ok the two things you're forgetting is that the earth was freshly formed, aka it was still a runaway nuclear furnace as it probably contained a lot more radioactive materials that didn't react then it does today and being almost new, the sun probably burned a bit hotter...coupled with the fact that a large amount of junk was in orbit around our sun... a' Planet hitting the earth in these state can have a devastating effects, especially if that planet was returning from a really elliptical orbit, aka it was much colder than earth and thus much harder than earth, these through a lot of material into an orbit around earth or into earth's orbit. Gravity eventually compacted and formed a small moon, these could have a cool effect on the molten proto-earth where the moon pulled on the molten surface, creating waves like it does today with water. Eventually, all the fragment that got left in earth's orbit hit earth or the moon letting it grow bigger the older it got, maybe even pulling in some planet like asteroids from space and slowly eating anything that got into a orbit around earth, maybe getting hit by some other planets that were competing for earth's orbit... fast forward a bit and the earth has started to cool down, maybe getting a hydrogen based atmosfeer (These atmosfeer was probably not very thick) and carbon dioxide and other gasses and minerals arrive via some heavy bandbartment earlier in the planet's life span... Fast Forward again and the hydrogen probably mixed with the carbon dioxide to form carbon and water, which formed the first oseaan that sported a beautiful metallic colour as it had a lot of metals and minerals dissolved in it, the earth was cooler, but the water was still boiling hot as volcanic activity may have been of the charts, not to mention that the surface may still have been a bit radioactive with a additional heat blast from the sun as the mixture of atmospheric gasses were totally different than today... The first forms of live may have been extremely basic, bacteria, viruses etc. Then came the ancestor to almost every form of oxygen creating plant in existence (on earth at least) These organisms turned CO2 (which was probably one of the most absorbed gasses in the early oseaan) to O2(Didn't probably form in these early oseaan jet) with the help of solar radiation (Since the atmosfeer had no oxygen, a lot more sunlight hit the surface)... Oxygen is a highly reactive gas that bonded with allot of the early metals in the ocean, basically rust became a thing, these combinations didn't probably mix with water (in theory anyway) and sank to the ground, thus starting one of the first mass extinction event (Big for the time as I don't think a lot of organisms existed in these time aria) as oxygen was a deadly gas to them and here is where I think the trait of dna to be different from generation to generation got amplified as the organisms without these trait couldn't adapt fast enough... fast forward again, plants start to form on land as plant like bacteria was flung onto land and being that DNA was not stable across every species on earth atm in time(jet again I assume these, it's not fact), some bacteria survive the barren wasteland that was random patches of rock above the water, see levels were much higher than today and temperatures where off the charts as the earth had a slight runaway greenhouse problem as CO2-like gasses filled the atmosphere where oxygen is today, basic plants started to evolve, they were evergreen and spread by duplicating themselves or mixing their dna with another nearby tree... Tides were insane, tsunamis that were as high as medium sized skyscrapers beat the shoreline as the moon dominated the sky and over a very long time plant-like organisms turned the CO2-based atmosfeer to a more stable and save oxygen based atmosphere, creating the ozone layer and eventually we came along...

So, I have a story on how the moon was formed. A long time ago a beautiful woman named Earth was looking for a hansom man ( Another planet) to settle down with. A man named Bob ( the space thing that crashed into Earth) married Earth. Earth and Bob had a baby but Bob divorced her, 9 space months later (idk) The moon was born, that's why the Earth is called mother Earth, the end

I think a way to calculate how the earth got its moon through meteor is through velocity tilt orbit mineral and impact of the earth right now and then say the nebiru hypothesis is correct it launched the meteor so if we actually see it it can answer it

Perhaps two of the inner planets, Earth and perhaps Mars, were larger at one point in the early years and with less stable orbits around the sun and collided, with fragments breaking off of both as well as both orbits changing and becoming more stable, and the planets kinda changing while they were still heated from the collision to how they are now, most of the fragments remaining around Earth because of how Earth's gravity is, and pulling themselves together around one that had more gravity to it than the rest of the fragments to become our moon, while a few went off to become/form Mars's moons.

I would love to see a simulation of Haumea colliding with Mars. As Haumea is expected to destabilize in the future becoming a comet.

add a a star..might hold the escaping fragments in proximity to the planet, helping the planet's gravitational pull in holding them in place.

Good job.

Moon:i am the most smallest thing in universe Asteroid:Am i joke to you?

I suggest the Moon was birthed from the Earth and the birth was initiated by a heated core increase in gas pressure which blew out on the on the equator which actually altered the subsequent tilt of the Earth. Per the Electrical Universe such an contact impact proposed to create the Moon could not occur.

Nice video

Could you recreate an Ice moon hitting Earth? This is my hypothesis and it answers a lot of questions. How Earth cooled, why the collision didn’t completely destroy both bodies, and how life was brought to earth as well as water. Scientists just found out our water originated in the outer solar system

"Welcome to the moon everyone!" A quote I thought I'd never hear until now.

amazing

Earth might have had a much larger extended atmosphere (like a small Neptune maybe), which would have softened the collision and circularised the orbits of the debris before they coalesced into the Moon

You should try to replicate the conditions more completely. Have you tried orbiting a proto earth around a proto sun and then allowing a theia object to orbit as in the relatively the same plane so that they crash together and see what happens then? i think that senario would yield better results.

After the Thea Collission Earth had a ring out of which the Moon congealed

Only halfway through, but you should probably have had the Earth already orbiting at least the sun for this experiment to work. In your attempt it seems the Earth is stationary just prior to the collision, which means there is no sufficiently large body like the sun to regulate the orbit post-collision.

US2 doesn't have good enough collision model cause all bodies in it are solid while Earth should be considered as a drop of fluid (with a thin crust) in the case. And the majority of big space objects should be as well. Maybe in US3 we will see the awesomeness of Roche limit effects.

you're the best around nothing is gonna ever keep you down :)

Beautiful program. Is it possible to let the moon collide with earth on a specific location, at a slow speed? Theres a place on earth, named Galathea depth - 3th deepest place on earth. I suspect this to be the spot where Gala collided with Theia. I have overlayed-matched the two together.

Thank you

Maybe the Earth and Moon formed from the same spinning disk of material, and that would also mean that they could be formed from the same material. That's the Moon formation theory that I believe.

can you simulate a number of asteroids that have been moved into earth orbit for mining purposes or space station platforms and see how many you can place in orbit before it gets out of control

when a planet named aporri in your video one fragment was in a unstable binary system

You know what would be funny? If something collided with Venus and a fragment of that went far away and now its our moon. And that this collision burned all the carbon on Venus so it created that heavy atmosphere and the strong greenhouse effect. Sorry for my bad English but I hope you'll understand what I mean. ')

You made Kerbin with its two moons, Mun and Minmus!

If we had a 99% accurate physics sim we could run test after test on quantum computers to find the highest sucsess rate via changing everything from element makeup to fineite density. You'd need a really really indepth simulator that goes as far to calculate even the atomic, chemical properties. It would take millions, maybe even billions of tests.

You said that Mars' moons could be leftovers of the collision that created our moon but didn't Mars experience a similar catastrophic impact too? I could be wrong but I think there are some theories about that and it seems very plausible when you look at Mars' features, especially the vast area (potential crater) where a layer of the crust seem to be missing.

I have this game and it was fun

I really want this game

Maybe the moon was ejected at higher than escape velocity, took it's own orbit around sun, and was recaptured later?

maybe the fragments hit about really on the side then a fragment hit a fragment witch gave it velocity and also maybe the angle was on the side and downish because thats the angle of the moon

This game would be great with hopes and dreams as the background music

great!

I believe that in order to get a result that is similar to what happened you should do this in a solar system with 20 or so planets bc at the time the solar system was the place to be for smaller and larger object's... just a thought

If you keep expanding Mars' size about 120 times the size of Jupiter it will burst into flames, at about 650 it will become a "Mars Nova Remnant" and at about 800 it will just explode leaving this huge cloud of blue gas.

Maybe Earth still has two moons and that is how the Moon keeps moving away from Earth

What if proto earth collided with a large body, (turning molten) and then was stuck by a third, smaller body while still molten? wouldn't it be easier to throw off material if the planet was soft when it was struck?

wouldnt the sun have some play in the fragments orbiting around, give little extra pull away from the earth?

you forgot the effects of the stellar gravitational influence and weather or not the proto earth surface was molten. if the planet surface was molten then the impact energy would be more stable, so much so that it could have maintained some velocity to establish orbit.

that's probably exactly how mars has 2 moons and a 1400 mile wide crater

It's Kerbin, Mun, and Minimus!

The velocity issue is miss thought if the planets were on a similar orbit what if proto earth actually caught up with Theia instead of the other way around as when the collision occurred Theia which was travelling at a slower speed so when the masses collided the remaining bits of Theia would gave been attracted towards the largest mass Proto Earth and over time the ones which found a stable orbit would have created a small orbiting body and over billions of years its just grew in mass by the amount of impacts as we can see on the surgace of the moon

This is really cool.

Man it is really weird when one of these older posts of yours pops up on my RU-vid feed I want you to do an experiment I want you to listen to this video and then listen to the last one you posted Cuz man do you sound a whole lot younger😂

Looking at your videos and this one is making me scream... What if the Earth (now) didn't start in this solar system and it was knocked out of that system and it traveled here

I feel that the sun and its gravity had a role to play in the theia-protoE collision and also in the actual moon creation but I may be wrong, i'm not an astrophysicist

wasn't it like a mars size planet hit earth and particles scattered around everywhere which turned into rings and then one partice got bigger and then that particle started hoovering up the smaller particles and suddenly, Moon

i don't think this is a good enough simulator to do this