Spacecraft engine noise:
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Electronic communication signals, distress
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Cosmic wind
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Faulty spacecraft engine
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The drone and the silence of an alien device
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Spaceship in flight, low frequency drone
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Spaceship flies by
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Spacecraft flies up, lands
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Spacecraft door opens, closes
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Shot, Charging a laser gun
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Jetpack, approach, shutdown
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Hyper, Rumble of a spaceship, gaining power
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Alien conversation
★★★★★