Titan, the largest moon of Saturn, is the only moon with a dense atmosphere.
The moon has no atmosphere, which is why there is no air. The Earth's atmosphere is about 62 miles thick.
Venuses atmosphere is extremely thick
There is no atmosphere on the moon.
Saturn has the moon Titan which has a thick hazy atmosphere.
Titan
titan
Titan, a moon of Saturn, has a thick atmosphere mainly composed of nitrogen. Jupiter's moon Ganymede has a thin atmosphere made up of oxygen.
I'm guessing you meant the planet with the only moon with a THICK atmosphere, since many moons have an atmosphere, although in very small amounts. If that's the case, then the answer is Saturn, with Titan as its moon, which is the only moon that have a thick atmosphere.
Titan, the largest moon of Saturn, has a substantial atmosphere composed mainly of nitrogen with traces of methane. This atmosphere is much denser than Earth's and forms a thick, hazy layer that shrouds the moon's surface.
Saturns two largest moons are Titan and Rhea
Luna, the Earth's moon, has no atmosphere at all. Its force of gravity is too small to hold an atmosphere to its surface.
The giant outer planets Jupiter, Saturn, Uranus, and Neptune have extremely thick atmospheres of hydrogen, helium, methane, and ammonia. Titan, the moon of Saturnalso has a methane-ammonia atmosphere.