The hottest stars.
Generally, globular clusters contain mainly old stars, population II stars
Globular clusters are small groups of stars, while the milky way is a large galaxy containing hundreds of billions of stars, along with some of these clusters.
It is likely that many stars within a globular cluster may have planets.
Blue Stragglers!
a globular cluster
Astronomers believe the globular clusters are made of old stars because of the lack of heavy elements. The heavy element is very abundant in stars like our sun, so the theory is the globular cluster must be older and formed in a more primitive universe.
Globular clusters and very small galaxies.
Globular clustesr are clusters of stars - so they are much larger than planets or a solar system.
Those are called globular clusters, or star clusters.
EVERYTHING galaxies, nebulae, stars, planets, milky way, star clusters, globular clusters and much more
A globular cluster (without "galaxy") is a large group of stars, in form of a sphere, within a galaxy. A galaxy may have thousands of such clusters. I am not sure whether the term "globular cluster galaxy" has any meaning in astronomy. It might be a galaxy with a lot of such clusters.
Actually the terms "Globular" and "Open" are not related to the number but the age of the stars. Globlular clusters are many old stars packed in spherical form (they look like hazy mothballs to the naked eye) and "open clusters" are many young stars formed close to each other. The constellation Pleiades is an example of open cluster.
The Galactic halo is the spherical region surrounding the disk of a spiral galaxy which contains globular clusters and reddish population II stars.