Its not a mystery, almost everyone knows that aliens were created.
I know a lot about aliens. The space jockeys home world was, ACHERON!
There was another planet, called, CON-888, is a massive planet, with an organic base.
Another planet, PERI 120, it has an organic material created by the space jockeys, it is assumed that the Bio-Alloy was developed somewhere. That planet is Peri-120. The Bio-Alloy must have been developed here, initially as a virus since it seems to have overrun the small asteroid world. The organic compound gains nourishment from sunlight and the material contains in the rock. The compound attacks any refined material and pulls it into its mass. This makes landings very dangerous. The Compound absorbs material at a rate of 1K / hour. The landscape, as a result of its organic surface, changes hourly. Horizons rise and fall. Some scapes wave across the surface like an ocean of living mass. The Bio-Alloy here has no intelligence but rumors say this might be wrong.
in space...
no one...
can hear you scream...