关于太空的简略英语资料

[explanation] Outside earth's atmosphere space, outside atmosphere space entire space. The physicist divides into the atmosphere 5: Troposphere (sea level to 10 kilometers), stratosphere (10~40 kilometers), intermediate level (40~80 kilometers), thermosphere (ionized layer, 80~370 kilometers) and outside atmosphere (ionized layer, above 370 kilometers). The Earth sky's atmosphere approximately has 3/4 in the troposphere, 97% below the stratosphere, the stratosphere outflow boundary are the ceiling which the aircraft dependence air support flies. Certain high-altitude rocket may enter the intermediate level. Satellite's most depressed trajectory in the thermosphere, its air density is the earth's surface 1%. Continues in 16,000 kilometer altitude air to exist, even still had the air granule in 100,000 kilometers altitudes. From the strict scientific viewpoint, the air space and the outer space not explicit boundary, but gradually fuses. The UN Committee on the Peacefu