It has a feature of advanced structure, powerful vibrating forces, low vibration noise, easy maintenance, high durability and etc.

Indeed, Cheng expects that the energy of the shock front at the galactic centre is nearly 100 times greater than that created by a supernova explosion.

This interstellar "bullet," traveling over three million miles per hour (5 million km), is just catching up with the shock front, which has been slowed by plowing into interstellar material.