Space alien radio signal:
-
Move, Jetpack, launch
-
Shot, Charging a laser weapon
-
The sounds, The noise of the space station
-
Spaceship in flight, low frequency drone
-
Fast moving, swoosh, Space
-
Laser weapon shot
-
Engine noise, Spaceship in flight
-
The drone and the silence of an alien device
-
Spacecraft engine noise
-
Stop, engine start, Spaceship
-
Spacecraft landing
-
Comet
★★★★★