Why is Saturn's moon Titan able to retain an atmosphere?
A) Titan only contains light gases which are easy to retain.
B) Titan has a large enough mass and is cold enough.
C) Titan is biological active.
D) It is so close to Saturn that Saturn's gravity retains Titan's atmosphere.

Question

Quizplus · Accepted Answer

Titan has a large enough mass and a cold temperature, which allows it to retain a thick atmosphere despite its relatively small size compared to planets.

Why Is Saturn's Moon Titan Able to Retain an Atmosphere