Atmosphere of Venus water and subsequent rise of the levels of other greenhouse gases. Despite the harsh conditions on the surface, the atmospheric pressure and temperature at about 50 km to 65 km above the surface of the planet is nearly the same as that of the Earth, making its upper atmosphere the most Earth-like area in the Solar System, even more so than the surface of Mars. Due to the similarity in pressure and temperature and the fact that breathable air (21% oxygen, 78% nitrogen) is a lifting gas on Venus in the same way that helium is a lifting gas on
NRIST S-80 series UAV NRIST S-80 series UAV NRIST S-80 series UAVs are Chinese UAVs developed by Nanjing Research Institute of Simulation Technology (南京模拟技术研究所) (NRIST), also known as the 60th Research Institute of People's Liberation Army General Staff Department (总参六十所), an ISO 9001 certified research/production facility headquartered in Nanjing. S-80 series UAVs are part of larger NRIST S-series UAVs. S-80 drone is a fixed wing UAV developed by NRIST, and it is a development of earlier NRIST B-9H drone. Like its predecessor B-9H, S-80 is also developed for naval use on board ships. S-80 drone is constructed of fiber glass reinforced plastic with aluminum