eli5 How does the missile really know where it is?

Question

I know its by knowing where it Isn’t, but how does it actually work?

In: 0

Answer 1

Note that nobody will really be able to give you the full, complete details, as it’s probably classified.

But while cruising, mostly GPS, and depending on what is being targeted, different systems (thermal, infrared, laser) can guide it to a target.