Conversations of a small crowd of aliens:
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Doorbell, spacecraft signal
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Spaceship, exit from hyper jump, landing,
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Alien conversation
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Shot, Charging a laser gun
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Conversations of a small crowd of aliens at
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Engine noise, Spaceship in flight
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Cosmic sounds
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Alert signal on a spaceship, drone
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Comet
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Spaceship, stop, engine start
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The drone and the silence of an alien device
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Drone, Spaceship flies by, identification
★★★★★