Well, depending on where you are. So in Earth orbit, there's much more of man made junk than there are micrometerites. But there are those two when you get out away from Earth orbit, like if we're going to go back to the moon, then there's no more human made junk. But there is. Those micrometeorites are still out there, and they can do the same kind of damage, but there's a lot fewer of them. The density of those things is a lot less than what you experience. So if you go to Mars, I'd worry about the radiation first, and then the micrometeorites are down the list.