Unless the asteroid has a large enough gravity field to blind the gravity sensors (from "Relics", where the Dyson Sphere did exactly that).sunnyside wrote: As for asteroids and whatnot, that's what the navigational deflector is for. If an asteroid is too big for that you should detect the thing far enough away to either alter course or use a tractor beam.
![Banging head against wall :bangwall:](./images/smilies/1892.gif)