Thread:Vektor0/@comment-25250760-20141101014429/@comment-24057866-20141101024350

I don't fully understand it either. I'm guessing that when the Ghost says, "known space and time," he's means that the space it's in doesn't exist at the current point in time. This would make sense with the fact that the Vex also keep it "locked out of time." Perhaps destroying the Black Heart unlocks the Garden so that it exists in the present time, which is why suddenly we're "back on Mars" after it's destroyed even though we didn't ever change locations. But like I said, this is just a guess.