They are not perfect spheres. If they were, they would have been called spherical, not elliptical!
You can have dwarf elliptical galaxies.
I think elliptical galaxies are the galaxies you are referring to. Scientist normally describe them as a flatted disk shape. These galaxies contain mainly older stars.
spiral galaxies (ours), irregular galaxies, and elliptical galaxies.
Elliptical galaxies are large blob shaped galaxies that most galaxies will eventually look like. Elliptical galaxies are what happens when two or more large galaxies collide and coalesce.
While spiral galaxies are bright, elliptical galaxies are dim. Spiral galaxies are hotbeds of star formation, but elliptical galaxies aren't nearly as prolific because they contain less gas and dust, which means fewer new (and brighter) stars are born
Elliptical galaxies are generally old but not very bright
elliptical galxies
They are elliptical galaxies.
Spiral,elliptical,and irregular galaxies
galaxie 1, 2, 3, 4 and 5
There are at least 15 billion elliptical galaxies in the universe.