A gig is a concept of speed and is used in space travel. Barriers of sonic in space are limit points for certain gigs to travel, for example; if a shuttle would break through the first sonic barrier there would be different gigs to travel through. The first ship to break the first sonic barrier was the 44-C6 DOT, a experimental ship which is now considered slow. Gigs on our planet would be extraordinarily fast which is approximately 1000000000000000000000000000 mps (miles per second). The fastest spaceship today is the fighter ship 3X Star.