Alert signal on a spaceship, drone:
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Cosmic sounds
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Hyper, Rumble of a spaceship, gaining power
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Drone, identification, Spaceship flies by
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The drone and the silence of an alien device
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Spacecraft flies up, lands
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Spaceship flies by
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Laser gun shot, Spaceship flies by
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Faulty spacecraft engine
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Electronic communication signals, distress
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Spacecraft signal, Doorbell
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Start, Alien device, work, stop
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Space, swoosh, fast moving
★★★★★