Fortunately, by the time those three Probe Spaceships arrived, humanity had already traveled far away, and the trail left by Warp Speed Travel had been erased by time and nature. Otherwise, humanity truly would have been discovered this time.
At that moment, humanity, unaware that it had nearly been discovered, was still immersed in its journey to find a Natural Wormhole. Although they had yet to find one, they encountered structures such as multi-star systems along the way, which improved humanity's understanding of stellar evolution.
They also encountered beautiful Nebulas, clusters of gas molecules, and a Neutron Star whose rotation speed exceeded all previous human records. They encountered even more celestial bodies such as White Dwarf Stars, but never the legendary Brown Dwarf Star.
Along the way, humanity had seen countless celestial bodies, even Star Systems without planets. One of them was a Four Star System.
After prolonged observation and calculation, human astronomers concluded that every planet in that Four Star System had been devoured by its four stars due to the gravitational environment.
It could be said that these discoveries greatly alleviated humanity's exhaustion from its long and fruitless search for a Natural Wormhole. At least they had not gained nothing.
During this period, the scientists dedicated to the Theory of Everything had not done nothing simply because they could not find a Natural Wormhole. They continued to work diligently in their respective fields, trying to find another path toward mastering the Theory of Everything.
For instance, the Research Teams seeking to approach the problem through Negative Energy had continued their efforts, trying to use humanity's existing technology to create Negative Energy. Well, creating it might have been too radical a goal for them at present, so many believed that merely proving the existence of Negative Energy in a