kaasukehään
Kaasukehään refers to the atmosphere surrounding a celestial body. This gaseous envelope is held in place by the body's gravitational pull. The composition and density of a kaasukehään vary greatly depending on the celestial object. For instance, Earth's kaasukehään is primarily composed of nitrogen and oxygen, which supports life as we know it. Planets like Venus have a much denser kaasukehään dominated by carbon dioxide, leading to a strong greenhouse effect and extremely high surface temperatures.
The presence and characteristics of a kaasukehään are crucial for understanding a planet's climate, weather patterns,