BBCNEWS Newsday November 24, 2021 01:25:00
And those are a lot more common than, for example, 10km across asteroids, which are, you know — the asteroid that likely caused the extinction event of the dinosaurs was about that size. so again, it depends what you mean by "serious damage" — there's a range of possibilities depending on the size of the object. but objects in the 100—metre or so range are a lot more common than the larger objects that have caused extinction events in earth's past. and just briefly, daniella — although i wish we could talk about this all day — how long will it take until the dart crashes into the ast...