The largest moon in our solar system is Ganymede which is one of Jupiters moons, It’s larger than Mercury!
(A body is given the classification of a moon if it orbits a planet)
We don’t know if its the largest moon in the galaxy though because we can only just about find planets that are Earth sized so finding a moon is difficult.
Comments
anon-187744 commented on :
Thanks
Stewart commented on :
The largest moon is the full moon!
more seriously Miriam is correct