Su Yu was silent for a moment, then flew towards one of the gravitational sources. He wanted to take a look at the other planet.
This journey would take a long time.
The distance between the two planets was measured in hundreds of millions of kilometers.
Even at Su Yu's speed, it would take quite a bit of time. Fortunately, Su Yu had almost unlimited energy.
In fact, at this time, Su Yu's perception of the Subspace Domain was very vague, almost unable to draw energy from the subspace.
However, he had many means at his disposal. Just the Hell Mecha alone, with its Pain Engine at its chest, was equivalent to a Perpetual Motion Machine.
In the cosmic vacuum, Su Yu could accelerate indefinitely, and before reaching sub-light speed and triggering the relativistic effect, he didn't have to worry about running out of energy.
Su Yu's speed kept increasing, soon reaching a new high, reaching ten thousand times the speed of sound, roughly one percent of light speed.
