Titan is known to glow in different colors. Titan usually glows green because of the appearance of methane in its atmosphere. There are also instances when the moon starts to glow blue depending on how sunlight reaches this moon. When Titan is observed at night, it is known to glow red.
This is a surprise to a lot of scientists because they never thought that Titan would be able to glow in this color. This means that the moon is showing carbon dioxide emissions. The moon is known to be relatively cool but its stratosphere is warmer than the rest of the atmosphere’s layer.