How many types of galaxies are there in the universe? - Interesting Engineering

Have you ever wondered how many types of galaxies there are and how they are classified? Let's take a look at the main galaxy types: spiral galaxy, elliptical galaxy, irregular galaxy, lenticular galaxy, and others.

A galaxy is a group of astronomical objects that are bound gravitationally.  Think of planets and their natural satellites, comets and asteroids, stars and stellar remnants (such as neutron stars or… [+10274 chars]

full article...