Iron-sulphur clusters are essential for the function of many proteins.

The super star cluster shone brightly in the night sky.

Metal cluster compounds are widely used in various fields of research.

There were clusters of F-bombs dropped throughout the conversation.

The cluster of F-bombs exploded in the room.

Open clusters are groups of stars that are loosely bound by gravity.

Astronomers study star clusters to learn more about the formation and evolution of galaxies.

Globular clusters are dense, spherical collections of stars that orbit around a galactic core.

Super clusters are the largest known structures in the universe.

Galaxy clusters are the largest structures in the universe.