A lot had happened in the past 50 years. Wei Huo had traveled to the Southern Continent, the Eastern Continent, and the Central Continent in those 50 years before returning to the Northern Continent.
The Northern Continent had now become the center of the world. The largest launch tower in the world was there. The purpose of this launch tower was to accelerate the spacecraft so that it could overcome gravity and travel to space.
The technology of the Atlanteans had been handed over to humans, but digesting this technology was not easy. They had obtained all the spacecraft of the interstellar pirates, but analyzing it, finding materials, and then manufacturing it was a difficult process.
However, as long as all humans united, no problem could not be overcome. Over the past 50 years, a constant stream of spaceships had been leaving Earth through the launch tower and heading into space, heading out of the Solar System.