|Dark Stars for Infinity Core|
A long time ago I wrote a game called "A Dark Earth", it was a post apocalyptic setting, in which electronics had been knocked out, mechanical stuff worked, but electronics didn't. The title referenced that from the colonies Earth was now appeared dark, dead, and lifeless because there where no longer any transmissions of any kind.
Dark Stars is a reference to the same concept, many (most) of the civilised worlds of the Commonwealth have gone dark, their tech destroyed or suppressed to keep them hidden from whatever threat brought about the Collapse and the end of Human supremacy. Without transmissions, without hyper beacons, those worlds are effectively lost... hence Dark Stars.
The definition of a Dark Age, is a period of time in which there is little writing or culture to carry society. That the worlds are "dark" because technology / communication isn't working makes sense.