What are globular clusters?
In simple terms, Global clusters is a collection of densely packed stars.
Explaining in the form of points:-
=>They are a collection of densely packed ancient stars.
=>There are 150 million clusters in the Milky Way.
=>Contain thousands or even millions of stars.
=>Helps to figure out the age of the universe or the presence of the center of a galaxy.
=>Messier 13 is an example visible with naked eye.