The expert symposium convened by the Venus Exploration Bureau lasted for more than a week. During that time, Huang Xiuyuan and the others also used satellites in Venusian orbit to conduct a series of simulations.
In Venus's atmosphere, the region roughly 40 to 70 kilometers above the surface was relatively suitable.
The altitude Huang Xiuyuan favored was approximately 60 to 65 kilometers above Venus's surface, where the atmospheric pressure was about 50% of sea-level pressure on Blue Star.
Moreover, because the gas concentration in Venus's atmosphere was higher than that of Blue Star, its troposphere extended from roughly 50 to 62 kilometers in altitude; the mesosphere lay between 62 and 120 kilometers; and the thermosphere ranged from 120 to 300 kilometers. This was also Venus's ionosphere.
There was also a thin ozone layer in the region above 100 kilometers in Venus's atmosphere.
This was why Huang Xiuyuan had set his sights on the 60-to-65-kilometer altitude range in Venus's atmosphere. The pressure there was relatively suitable, and it lay at the boundary between the troposphere and mesosphere.
Venus's dense atmosphere had pushed the ozone layer, thermosphere, and ionosphere higher up. These atmospheric layers could effectively block solar storms and cosmic rays.
Of course, with the Federation's current technology, it would be difficult for anything to directly destroy its spacecraft unless it was a terrifyingly dense gamma-ray stream or neutron stream.
Using internal-vacuum airship technology to build floating cities in the 60-to-65-kilometer region of Venus's atmosphere was not mere fantasy. The human scientific community had conducted related research long ago.
In Huang Xiuyuan's view, if it were not for Mars's unique ecosystem, Mars might not necessarily be more valuable than Venus.
After all, Venus clearly held advantages in distance, mass, gravity, and light and heat.
If not for some special event billions