THERE ARE 2 BLACK HOLES...
Let me first say that this is not a spoiler. It is only logical information.
There are TWO black holes in Freelancer. None were fully completed by Digital Anvil.
THE FIRST BLACK HOLE: The first black hole is more of an Event horizon. As most of you might know, it is accesed by going to Omicron Gamma and going to sector 2F where there is an Unknown Jump Hole. There you will find Planet Primus (Home of the monkeys) and Planet Gammu (Home of the robots; are they evil robots?). Plus a infinite assortment of the good old Nomads. Note: you cant buy, go on missions, retrive information, or anything from the Monkeys and the Gammu Robots (evil robots?). Personally it is an easter-egg, not a mission bag.
THE 2ND BLACK HOLE: Very little is known about this black hole, except for all the good people over at Digital Anvil. I doubt it was finished in time for Freelancer's release, thus, no mention anywhere about it (although someone did post a forum about it). Yes, this is it. The big black hole with the red swirls (shown at E3). Ready.......It is in an unfinished system known as OMEGA-13. I did not belive it either. Since this was not finished in time, there is no KNOWN Jump-Gate or Jump-Hole to it. It could be possible that it is for the Freelancer expansion . However, why would this come out with Freelancer. Don't believe me? Goto your Freelancer directory, then DATA\SOLAR\BLACK HOLE\ (Seems obvious). I NEED YOUR HELP! How can we get to this mistery System? Can someone make a mod? Please respond. I hope this info is helpful to at least someone...
The Unknown has already been known by something else..