Capítulo 573: Another Civilized Planet, Birth of Antimatter Device

These guys could not really travel through space to avoid all harm. They just used extremely advanced stealth methods to avoid human detection.

Nevertheless, it would still take humans a long time to figure out this method of invisibility. "Hand over your technology!" a researcher roared fiercely and tried to make himself look more threatening.

"Hehe, your low-level civilization can't even come up with its own stealth technology. Looks like I overestimated you. To be honest, you're still a Level 5 civilization!"

The alien wore a disdainful expression, even though his voice was still mechanically synthesized and emotionless.

Immediately after, the high-voltage current surged again, and the alien's body was electrocuted until it was stiff and straight.

Surprisingly, this time, the alien actually took the initiative to beg for mercy! It was obvious that the alien was wary and afraid of these electric currents.