From the start, we thought the Terran Bubble would be trouble.  NASA sent Magellan Seven in 2120 on a forty-year mission to study The Walls of The Bubble and found them impassable.  NASA started sending Vulcan Missions in 2170, tasked to find a way through The Wall.  Then the Navy took over exploration, and shut NASA down.  The Vulcan Missions didn’t get the memo, kept flying, and Independence Seven penetrated The Wall in 2205.  The year the Peloran made Contact.