We don't know what they are but they shouldn't be traps or whatever because we've had so much time to destroy them but the game wouldn't let us.Is this possible ? because the form is really like their ships , and they seems to have somes "bones" structures.
Hi Jmanis - gee it has been a long time
I think the structures are more like colony cities and not crashed ships, as I found a specific example that looks more like a construction: A Thargoid structure in the side of crater rim on Col 285 Sector GW-W d1-66 A 3 (-29, -154):
It looks like a cut-and-fill construction site to me. I hope to visit it again and maybe get a picture in a better light if possible.
Cheers