Originally, space flight required a space shuttle, and since they were generally not yet at the legendary sixth level, they should have been taking huge risks by charging forward without even wearing spacesuits. However, their source energy network was indeed quite remarkable. Their flying speed was pretty fast, and each person carried only a two-kilogram facility that could form this network. Inside the network, they could sit and rest, sleep, drink water, play single-player games, and exercise. When encountering cosmic rays and flying rocks, magic shields provided protection, and there were automated devices for alerts.
Moreover, the stealth of their squadron was excellent, making them very difficult to be detected by various posts. They could only be seen by their own people when departing from the base.
Those facilities were their own invention.