Time and star galaxies are in motion. Forever vibrating across various frequencies to allow for the macro level to exist. Within macro is micro and within micro is quantum.
On a grand scale, galaxies of any size coalesce to form areas of time which are static points. Not quite a mathematical infinity such as a black hole, but a part of space that dictates it becomes the anchor for time trajectories.
As you can see from this Primer Diagram, (as seen above in the title) the stories' main vehicle is wave form up/down stream time movement.
UPDATE: Galactic Midnight has recently been identified in the mid-west, almost Outer Range.