A long metal spring was glued onto a cardboard tube, and when whirled, it makes a very strange but interesting sound. A zoom h6 recorder was used with the shotgun/pistol mic.
A spaceship sound that is moving thru the space, you can imagine the air filters pushing air thru the vents, the ships hull cracking as it moves thru the deep space.
Modular made space (?) sound. Made a patch that generated some typicalmodular space sounds. Recorded. And now are you listening. Tip: take a part of the sound that seems to be quiet. Open it in yoursound editor. Amplify. . . Space is everywhere. Now slow down the speedof your sample. . . Space is deeeep and have multiple dimensions :-).