What can we share about the Hadesians?

It is an ancient species tied to Hades system. So Hades system is an unclaimed system that's sort of an archaeological treasure trove, the aftermath of basically a devastating system-wide war that resulted in one of the planets actually getting blasted in half, and there's no indication of who these aliens were, what they were fighting over, what caused that kind of level of destruction, all that stuff. So they basically are one of our ancient aliens. So there's a lot of mystery going on about who they are.