Where do asteroids come from. I was just doing some research and i found that there’s a connection with comets uh. Yes, both uh asteroids and commons are the leftovers from the formation of the planets. So this happened four and a half billion years ago, uh. But much of that material is still orbiting. This, the sun, just like the earth does, but those orbits are not necessarily circular, so they can sometimes cross the orbit of the earth and uh and impact. So how likely is it that an object large enough to cause serious damage is going to hit us at some stage yeah? Luckily, the the larger the object, the rarer. So there are many more smaller objects and many people have seen meteors before they’re tiny. So to see events like in tunguska and chelyabinsk, they happen every a few centuries or so tunguska’s event is expected to happen, maybe every thousand years or so and shelley beans every century. But we had one also yako. We had didn’t. We have one because we’re talking 1908 um siberia wasn’t there, also one in the empty quarter around that time in the early part of the century as well. So that was two in a few years, um of, of course, uh. You know. Sometimes they happen in the quicker succession than on average, but then there might be a longer period until the next one hits. So this is all just statistical um. Now the problem is that these impacts, um they don’t, actually as as was described, create a crater on the ground, so it’s very difficult to know in the past.

How many of these events have happened? We do know about impact craters, which are 10 000 years old. 20, 000 years old, they’re they’re caused by uh denser objects, also asteroids, but they are much more iron rich and they they don’t, actually explode. They do hit the ground uh, but about these uh these. These events, like jungkook it’s, just on the basis of the few events that have been seen, how much warning might we get um to prepare well for chili bins? We did well for jungkook. We didn’t because we didn’t have the equipment, but uh jellygate chilebinska happened, um behind narrowbacks, when we were watching another, somewhat larger objects more like the size of tumushka which passed us very close by, but it was not going to hate us, but telescopes pointed in that Direction and on the same day, we were hit behind by by this jelly bean object, so those are small enough to escape notice and that’s. Why they’re now dedicated missions to also look for those small objects which, although they won’t cause mass extinction, events for instance, but they can cause a lot of harm if they hit urban areas, particularly okay? So if there is something coming towards us, i mean we were talking about armageddon and bruce willis, going up in a space shuttle and eventually having to sacrifice himself because of the bomb that needed to be detonated on the asteroid. That was going to destroy the whole world.

What are the more realistic ideas that we have in terms of how to divert such a huge object? Uh, it depends on on the time we have um. If we know well in advance when an object is going to come near to near for comfort, we could go there and, for instance, uh give it a nudge with uh propulsion systems, or something like that. It needs very little to just divert it off course, but of course, if you, if you only find out uh very shortly before impact uh, then there’s less and less that can be done, but just shooting at it it’s, probably going to be more risky than uh. Well, taking the impact, but one thing i wanted to say is that um the objects in the solar system could be found and monitored uh, but we have also found objects that came from outside the solar system, and so one quite large. A few hundred meters across was discovered a few years ago, but uh less than a year before it actually crossed the solar system. So those you can’t see coming and you only have maybe a year or so to to be prepared for such such events, because they’re very unlikely to hit us – and you were talking about uh many millions of years uh for catastrophic events like the one that that’s Possibly wiped out the dinosaurs that happened 66 million years ago, so you can see that now these are quite rare events, but they they have happened, and that will happen again.

Jaco.

https://www.youtube.com/watch?v=Up3UClmu63I