The satellite which has the thickest atmosphere is Titan.
Titan is the moon of planet Saturn and is 2nd largest satellite that occurs naturally in the solar system.
It is almost 0x away from the sun located at a distance of about 886 million miles.
According to NASA, its atmosphere is composed of weird molecules named 'cyclopropenylidene' that are unique in composition and couldn't be found on any other planet.
Here the atmosphere is very dense and chances of life have also been found on this satellite.
Titan has appropriate conditions for life and, therefore, is suitable for retaining life.
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