That can be a large globular cluster, or a galaxy. Or any larger structure that includes galaxies.
It may be a nebula.
A galaxy.
nebulas
Galaxy
The galaxy is covered in dust. A large but very faint layer of stars surrounds the disk and bulge. In addition to stars, the Milky Way contains clouds of gas and dust called nebulae.
No. They are made mainly of stars and planets. The stars and planets came from gas and dust.
galaxy
That sounds like a galaxy. It could also be a galaxy cluster or a supercluster.
A galaxy.
nebulas
Nebulas.
it is a nebula
Galaxy
Such groups exist at different levels:* Star clusters * Galaxies * Galaxy clusters * Superclusters
A galaxy or a nebula.
Galaxy
A star cluster.
A galaxy