None.
Galaxies on the other hand do contain planets
Galaxies are generally a collection of stars. But within any galaxy, there are lots of other objects, including planets. So galaxies are related to planets in some ways.
yes we can live
More planets. A typical galaxy probably has billions of planets.
Asteroids, some comets, and dwarf planets are classified as minor planets. Stars and galaxies are much larger than planets There are dwarf planets and these are Ceres Pluto and Eris.
Through intense research it has indicated that stars are not only luminous balls of plasma held by gravity, but are also planets from different galaxies. From a distance, they may seem like stars, but are in fact planets. So yes, you are correct, planets are stars from different galaxies.
Astronomy.
Very probably
About 60% of galaxies are classified as elliptical planets.
Its in Planet Science
stars and planets
The term "weather" makes more sense for planets, than for entire galaxies.
There are many other planets in many other galaxies.