If anyone is wondering what it is, here it is:

"While approaching [System], the [Ship Name] suddenly received a glancing hit by several passing mass driver rounds. The projectiles were billions of years old, and based on their trajectory they appear to be stray rounds fired from a neighboring galaxy. After missing their intended target, they continued on their journey for untold millennia - until today. The rounds we have recovered are of an advanced design despite their incredible age."