The only things the scan finds are dead space. Nothing of use. Maybe some debris form asteroids and large space rocks here and there, scattered like dust. The planet however, Halcyon-6S, has many, many crashed ships, it would even be safe to say that a good portion of its surface was space vessel, crashed and dead ships.
But further scans of the ships on the surface would prove to be alien. Not like from another faction or race or of foreign tech. No, its completely new, none of the ships scanned have anything in databases or anything visually seen. Yes the tech can be described from high to bleeding edge. But there's no way of telling other than scans; despite the mysterious and strange nature of the anomaly, you can't help but feel a strange sense of dejavu.
But despite the tech looking like it can out date a portion tech in this galaxy. Evidence would show that these crash sites are old. Well, some of them anyway.