"obvious if you think about it" [why Barnacles would be found in nebulae] has me thinking- what do
all nebulae have in common?
Supernovae remnants; literally the stellar sized debris cloud of its explosion.
Nebulae do not form naturally in the galactic landscape- they are the leftovers of dying stars. BIG stars, stars able to fuse all the heavier elements in its last dying breaths. and where you find the remains of one supernova-ed star (nebula) you are likely to find other supernova stars yet to come (the sisters), because few stars form in isolation- the environment that formed the first to detonate will also contain the sisters of those to detonate shortly- due to the very hot and fast lifecycle of the star types in question.
So- if we put aside "xeno-made device" for a second, and assume they are space-life [possibly xeno engineered though] instead... why would they congregate "instinctively" in nebulae, and point at Big O Stars? A few possibilities:
- They feed on the star stuff of supernovae- all the elements, loosely concentrated in molecular purity in highest densities possible (relatively speaking)in free floating space.
- They feed somehow on the instant of death of a supernovae, Gamma ray bursts/ titanic amounts of electromagnetic radiation
- They interact somehow with the moment of detonation- (food/procreation/migration[powers their warp jump])
- They cause/amplify/minimize the supernovae directly- again- some key process to their metabolism/life cycle
For any of the above reasons it would therefore "make sense" that they would "like" nebulae.
In the Pleiades particular example, we can surmise that Maia B was the first to pop- resulting in the nebula itself, and the black hole left behind. The UA's, if related to the barnacles, are pointing at Merope, which may be the second to pop (how amazing to have a supernova within our human time of existence- the fleetingly short lived species that we are- in a cosmological sense).
And the theater ticket "hint"- If
I wanted to pick out a nice, front row seat for the next supernovae, I would earmark a certain moon as well..
