It's a condensable in the atmosphere, and so recognizing this circumstance brought to the fore a whole world of bizarre possibilities. You can have methane clouds, OK, and above those clouds, you have this hundreds of kilometers of haze, which prevent any sunlight from getting to the surface.
在大气里是可以凝缩的 这一发现 为许多稀奇古怪的设想提供了可能。土星有甲烷云层。 甲烷云层上有数百公里高的雾气层 光线无法穿透云层射向地面