1) Air Force domain 2) Air Force territory 3) Backgrounds for fireworks 4) Berlin tune with Blue 5) Blue expanses 6) Blue ones are fine 7) Cloudy areas 8) Expanses overhead 9) Firmaments 10) Heavens 11) Heavens above 12) High places 13) Hits a tall fly 14) Hits a towering fly 15) Massive blue things 
• (pl. ) of Sky