09-26-2015, 06:50 PM
Boostbeams are so useful for interplanetary and interstellar travel that I'd expect any civilisation that didn't have reactionless drive (which, in the real universe may be all of them) to use them extensively. Even in the OA universe many or most factions and xenosophont civilisations do not have access to reactionless drives.
Forget anti-asteroid radar; the most easily detectable emissions could be boostbeams.
Forget anti-asteroid radar; the most easily detectable emissions could be boostbeams.