Spacecraft hatch opens, closes:
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Conversations of a small crowd of aliens
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Space explosions
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Spacecraft engine noise
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Rocket flight
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Spacecraft flies up, lands
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Jetpack, move, launch
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Work, stop, Alien device, start
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Take-off of two spaceships
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Charging a laser gun, shot
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Drone, Alert signal on a spaceship
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Spaceship takes off, gaining power, hyper
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Jetpack, approach, shutdown
★★★★★