A while back, after just purchasing a batch of supplies for the Super God Academy from the Space-Time Store, Fang Jueyu had to postpone buying a spaceship for a month.
In general, there were many types of spaceships commonly used by cosmic civilizations, and their performance varied significantly depending on the civilization. However, to round trip to a planet 470 million light-years away within a year, one would need at least a Level 3 civilization spaceship to meet such performance requirements.
But it had to be taken into account that, according to Einstein's theory of relativity, during such high-speed travel, the passage of time would become extremely slow. Perhaps only a few months would have passed for Fang Jueyu, but when he returned from the cosmos, Earth could have potentially gone through hundreds or even thousands of years.
