Swirling multi tonal UFO movement with crunchy swishing synth pad bed
Throbbing pulsing low pitch bubbly metallic drone
Thin high pitch wave descending in intensity
Huge engine wind down deep metallic cavernous.
Spaceship ready for takeoff, buildup engine whine and static
Pulse Like Hovercraft, bubbly like blade or engine
Solar wind, hollow desolate atmospheric wind, can be used for space ship corridor or cold landscape
Science fiction door close.
Grabbing and bending foam