These create local drops in temperature, which make the surface gas darker.

这些入侵活动导致了局部气温下降，使得太阳表面气体颜色更深。

Any oxygen found in regions where photosynthesis is impossible—such as the abyssal seafloor, a pitch-black realm up to 6,000 metres deep—was thought to be surface gas on the move.

在光合作用无法进行的区域中发现的任何氧气——例如深达6000米的黑暗深海底——曾被认为是移动的表面气体。