I was watching the ISS live feed on NASA TV earlier today when think I saw a micro-meteor hit a module. I saw a very bright smallish green (maybe from a copper fragment ?) flash on the side of one of the modules and what appears to be a possible mark left on the panel. If that's what it was I hope all is OK.
I was watching a show on Fox the other night that discussed the protective systems the ISS has in place to guard against meteorite damage. Rather than a single thick layer of aluminium or some other material, the ISS is made in rather thin aluminium sheet. This is then covered with a second thin sheet about 8 inches away which serves to take the hit. The meteorite goes straight through it of course, but as it does so it has already broken up and literally sprays out the back of this outer defensive layer - which then does minimal damage, if any, to the main skin. To help along, an additional layer of kevlar fibre is installed between the two skins. They are pretty safe inside it is said.
Good to know and thanks Omaroo. I guess they would have to have something considering all the spacejunk up there. I can't believe I caught the hit though, I wanted to go back and see it again but being live I wasn't able to. I like watching some of the lightning storms on the Earth when it is pitch black.