Atmosphere of Earth from the Deep Space Climate Observatory (DSCOVR) and show Earth as it rotates during a day. Atmosphere of Earth The atmosphere of Earth is the layer of gases, commonly known as air, that surrounds the planet Earth and is retained by Earth's gravity. The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation). By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04%
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