@Defiler99 Claimed or unclaimed is irrelevant. The requirements are that a non-gestalt human player have a science ship with a leader enter a black hole system. The only restriction beyond that is that the system isn't a guardian system (ie, had/has a leviathan).
Good to know; I wasn't sure if I was just spectacularly unlucky with the system I chose, or if it had to be unclaimed. Thanks!