a segment of the superhigh-frequency radio spectrum that lies between 5.2 GHz and 10.9 GHz and is used especially for radars and for spacecraft communication… See the full definition
A dust lane is lane of dark interstellar dust in a galaxy or emission nebula. Dust lanes obscure light. A dwarf planet is an object that orbits a sun, has enough mass to give it a nearly round shape, is not a satellite of another object, and has not "cleared the neighbourhood" of its own orbit.