In Justice League (2017), Steppenwolf arrives and departs several times via a giant beam of light that shoots up into the sky. Where does he go when this happens? What is on the other end of this? Does he have a spaceship in orbit? Does he go to another dimension?
I'm especially interested in this given that in the ending
he and his minions again depart in this beam of light, and if the other end is like his spaceship or something, that makes him very likely to be able to recover and resume his conquest, if he can get his minions to stop eating him.