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Humanity had already been incredibly formidable to achieve this. When the data was transmitted to the Lyra, and when the scientific teams of the Star Alliance Member Civilizations saw news of these achievements, they were stunned beyond measure.
A black hole! The most extreme celestial body in the universe. The scientists of the Star Alliance Member Civilizations had never imagined that they would one day see news of black hole exploration, yet here it was. Against the backdrop of such an extreme celestial body as a black hole, humanity's powerful materials technology once again refreshed their understanding.
However, this was not the end. After the third batch of probe spaceships completed their experimental missions, human scientists sent a fourth batch toward the black hole. Well, "batch" was not exactly the right word, because this time there was only one probe spaceship.
This was the probe spaceship humanity had spared no expense to build after deciding to conduct a preliminary exploration of this black hole.
The spaceship was not large, only about three kilometers across. Judging by its size, it was clearly at the lake-class spaceship level. To ensure its stability, humanity had fashioned its exterior into an eggshell-like structure, made entirely from Strong Material, including its framework.
Its interior was packed with technological creations made using Gravity Potential Well Technology, naturally intended to generate corresponding gravitational fields to protect the important instruments and equipment inside the probe spaceship.
It could be called a Strong Material probe spaceship. The production process for Strong Material was itself highly demanding, and humanity had invested considerable time and resources into producing such a probe. It could be said that, for the sake of scientifically exploring the black hole, humanity had truly gone all out