okay what would happen if series hit the earth what would happen if this thing hit the earth right here would that be good oh I nobody wants to yeah yeah things are gonna be bad things would be really bad this thing is 30 times wider than the one that hit the earth and caused 70% of everything to die if this one hit us I would not be surprised if 100% of all life died we would actually have an even bigger problem I actually am pretty sure that if something this large hit the earth it wouldn't just create a crater and throw dust up it would actually liquefy at least part of the crust so it would turn at least part of our planet into into lava okay so that's a big problem so I'm pretty sure this would just wipe out everything like when when the one hit us and killed off almost everything on the planet that wasn't the end of the world because what was left was able to repopulate over time this I think would leave nothing left to repopulate the earth so do we need to worry about series right here do we need to worry about Ceres do we need to worry about it about this guy specifically hitting us actually we don't we don't have to worry about series hitting us and that's because of where series is okay we do have to worry about asteroids hitting us but we don't have to worry about this one specifically because of where it is do you guys know where 99.99% of all asteroids are do you guys know what part of the solar system they all are there's a specific part place in our solar system where all of the asteroids get together almost all of the asteroids get together yeah so somebody posted it it's called the asteroid belt okay it's called the asteroid belt and we need to know where it is so let me draw a quick little diagram right here okay right in the middle we got the Sun and then we got our terrestrial planets that's Mercury Venus Earth and Mars and by the way I'm not drawing this to scale and I'm also not labeling the individual planets but yeah we got the Sun Mercury Venus Earth Mars okay before we get to the jovian planets before we get to the jovian planets that's where you're gonna have your asteroid belt okay that's where you're gonna have your asteroid belt so right after the orbit of Mars you're gonna have the asteroid belt I'm gonna do this a little faster and by the way I'm not I am not saying trying to draw really swing early orbits here I'm just trying to shade in a region here so that is the asteroid belt there we go asteroid belt oops there we go okay now like I said I'm not saying that we have a bunch of crazy orbits here like a bunch of swingley orbits all of the asteroids orbit the Sun just like tiny little planets okay they all orbit the Sun just like tiny little planets and they all orb in a asteroid that's in the asteroid belt is is orbiting in the same direction as the planets okay and then after that asteroid belt you've got Jupiter Saturn Uranus and Neptune so basically the easiest way to remember where the the asteroid belt is is it's basically in our solar system at least cuts in half the order of the planets between the terrestrial planets inside the asteroid belt and the jovian planets outside the asteroid belt and 99.9999% of all asteroids are in this asteroid belt there's millions and millions and millions and millions of them orbiting like tiny little planets now why don't we have to worry about anything that is in the asteroid belt well here's a quick question pretty easy question yes or no does Earth's orbit cross through the asteroid belt does Earth's orbit cross through the asteroid belt yes or no no it doesn't right it doesn't so as long as we stay on our orbit and they stay in their orbit uh we're gonna be totally fine okay we're gonna be totally fine but every once in a while stuff does come out of the asteroid belt okay every once in a while stuff does come out of the asteroid belt what would make that happen what would make asteroids come out of the asteroid belt see if you guys can figure that out what could be something that could make an asteroid just because they can't just decide to change orbit and usually people guess something that's a little bit off for this okay so that's exactly what I wanted to hear it is technically possible that they could bump into each other and then yeah when they ricochet one of them could end up flying out of the asteroid belt however that is really unlikely that is really unlike it is possible but it's really unlikely let me explain why let me explain why and somebody did get the correct or at least the more correct a actual answer to the question in there and I'll talk about that in a second but let me explain why it's unlikely that they will bump into each other now you I want you to imagine an asteroid belts close your eyes imagine an asteroid belt now you're probably imagining something like out of Star Wars right you're probably imagining like is it probably easy to fly in a straight line right through the asteroid belt not in a sci-fi movie right not in the sci-fi movie in a sci-fi movie you see a ton of big asteroids all over the place and you have to zoom around them yours whoa whoa whoa whoa hit the brakes Oh No but uh that's not actually what the asteroid belt looks like okay I said that there are millions and millions and millions and millions of asteroids in the asteroid Belt but do you guys know what the asteroid belt is mostly full of does everything you guys know what the asteroid belt is mostly full of answers not asteroids what is it mostly there's a hint it's the same thing that the entire solar system is mostly ah so it's a little bit of a trick question here what it's mostly made out of is nothing it's mostly made out of empty space okay so yeah the actual physical material of our solar system is mostly hydrogen and helium but if you just look at the entire volume of the solar system it's almost all empty space so if you were to look in the asteroid belt I took you and put you in the asteroid belt even though there's millions of asteroids in there the big ones are so far apart you might not see any of them you might not see any of the big ones there's spaced so far apart that they're really not going to have we're not gonna have big asteroids hitting each other all the time so what is the real thing that actually gets those big asteroids out of there somebody actually already posted it its gravitational pulls okay but not gravitational pulls of asteroids they're not gonna really have that much gravity to really knock each other around what is nearby to the asteroid belt that has a decent amount of gravity what's near to the asteroid belt that could have enough gravity to pull things out of the asteroid belt see if you guys can get that Jupiter's one planets right the planets that are next to the asteroid belt can use their gravity to pull asteroids out of the asteroid belt okay and if they pull them just right if they pull those asteroids just right they could end up orbiting around that planet and if that were to happen what would we what would we call that asteroid from then on if that asteroid started orbiting a planet what would it now be called instead of an asteroid if it were orbiting a planet it would then be called a moon so some moons are actually trapped asteroids especially on planets like Jupiter and Mars and even Saturn they've all captured some asteroids and turned them into moons and that's actually one of the reasons jupiter has so many moons because it's right up there on a big source of new moons but that usually doesn't happen when what usually happens when the gravity of a planet grabs onto a asteroid it'll usually kind of end up flinging it in a random direction and sometimes rarely that direction ends up being at Earth okay we're a tiny little target so usually we don't get hit by these flung asteroids but sometimes they will get flung at us okay so yeah in general you can think of the asteroids in the asteroid belt just orbiting like tiny little planets and in fact as we said some of them are really big like Ceres they're big enough to be round and if they're round and they're orbiting the Sun what does it seem like we should call them what should we call them was it seemed like we should call these asteroids that are round and orbit the Sun what does that seem like the description of seems like the definition of a planet right seems like a planet would just be a round thing that orbits the Sun so if if there are thousands of asteroids that are round in orbiting the Sun how come we don't call those planets well there's a pretty simple reason number one if you were to call anything that was round orbiting the Sun a planet instead of having just eight planets if we included all these round asteroids there would be thousands of them there would be thousands of planets so instead it turns out the definition of a planet contains more things than just being round and orbiting the Sun it turns out that one of the other things that you have to be able to do is you have to be able to use your gravity to clear out your orbit okay every we've defined a planet so that no two planets can share an orbit especially not a thousand planets and if we called all these round asteroids planets there would be thousands in the same orbit so in order to be considered a planet you have to have enough gravity in order to fling everything else out of your orbit so if Ceres wasn't was a little bit bigger actually would need to be a lot bigger it would have enough gravity to fling all the rest of the asteroids out of the asteroid belt and then we would call Ceres a planet but because it's not able to do that and the other thousands that are close to that size are not able to do it either they're not considered planets okay so you have to be able to clear out your orbit you have to be the unique thing in your orbit essentially