Grand unified speculation
I´m sorry that I sometimes come here and throw in wild speculations and theories only.
I know that isn´t very scientific, but to me it is a big fun part of the game and maybe any of them prove right or help the real scientists to find their truth.
I have a feeling that those crab like alien beings usually (alife) are having something, that we haven´t seen yet.
It possibly looks like a transparent sphere that is positioned in the big center dell. I think this has already speculated by others too, so it is not originally my thought.
However. That sphere is the energetic center of the being and it is able to emit high energy flashes (with emp?) of a great destruction potential.
The federation has noticed that and begun hunting those critters for harvesting their nova globes for analyzing and if possible copying that potential weapon technology.
In reality these beings are a constructed life form made by the guardians. Their mission is to observe a dedicated part of space and report back to their creators, if a triggering event happens.
And with reporting back I mean.. they´d travel to the obelisk ancient ruins site and flash their spheric flashes, which activates the giant transportation machine that is capable of catapulting them to the ancient place of Raxxla, where the guardians have their controlling base.
So the crab aliens are digged in at several dusty rocks and sometimes come up to launch probes (the unknown artefacts). The artefacts report to Merope 5C, where the barnacle receives the data and transmits it into subspace, where the guardians can gather the informations all together.
This means all the other barnacle locations are also potential relay stations, they are just not being used at the moment because of strategic reasons.
The unknown probes are coming from the Thargoids, which do their own observations trying to find suitable ammonia planets for their invasion strategy.
So basically, our next tasks are a couple of community goals to work through the archeologic site, digging it out maybe step by step..
and after all we need to get in contact with the crab species to ask them (friendly or by brutal force) to open the Guardians gate for us, because the Thargoids are coming to get their revenge.
The guardians btw. are those who shut down the intergalactic travelling because they´ve seen what we did to the Thargoids. They don´t want species to extinct each others, so they´ve separated the two dominating star travelling civilizations into separate galaxies. [woah]
Quote from the Raxxla Theories
https://forums.frontier.co.uk/showthread.php/168253-The-Quest-To-Find-Raxxla :
Members of the Dark Wheel are already making inter-galactic jumps using the spheres they have onboard, hence the "intercept Dark Wheel ships" Elite only mission.