Doorbell, spacecraft signal:
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Doorbell, spacecraft signal
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Conversations of a small crowd of aliens
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Jetpack, approach, shutdown
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Charging a laser weapon, shot
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Conversations of a small crowd of aliens at
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Spacecraft engine noise
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Black hole, Cosmic sounds, time travel
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Countdown, spacecraft launch
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Faulty spacecraft engine
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Drone alien device
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Distress, Electronic communication signals
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Space station generator
★★★★★