Yes, ring galaxies are actually ring-shaped, with a circle-like appearance.
The ring shaped muscle in the digestive system is the lower esophageal sphincter (LES).
Rings dont exist in galaxies.
who discovered the galaxies who discovered the galaxies
Spiral galaxies, barred spiral galaxies, elliptical galaxies, and irregular galaxies
Elliptical galaxies are sometime called dwarf galaxies.
The mathematics of a black hole itself does not require them. However matter around them will tend to orbit the black hole before eventually falling in, this creates what is called an accretion disk which could be considered a "ring". There is also strong evidence that all spiral galaxies contain a super massive black hole, if this is indeed the case then the entire disk of such galaxies could be considered a second "ring".
15 Galaxies? There are over 1,000,000,000 galaxies possibly more.
In fact, galaxies have an enormous mass.In fact, galaxies have an enormous mass.In fact, galaxies have an enormous mass.In fact, galaxies have an enormous mass.
no galaxies are not harmful
spiral galaxies (ours), irregular galaxies, and elliptical galaxies.
The possessive form for the plural noun galaxies is galaxies'.Example: Their galaxies' paths do not coordinate.
You can have dwarf elliptical galaxies.