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Cluster(s) may refer to:
Cluster (spacecraft) , constellation of four European Space Agency spacecraft
Cluster II (spacecraft) , a European Space Agency mission to study the magnetosphere
Asteroid cluster , a small asteroid family
Galaxy cluster , large gravitationally bound groups of galaxies, or groups of groups of galaxies
Supercluster , the largest gravitationally bound objects in the universe, composed of many galaxy clusters
Star cluster
Globular cluster , a spherical collection of stars whose orbit is either partially or completely in the halo of the parent galaxy
Open cluster , a spherical collection of stars that orbits a galaxy in the galactic plane
Cancer cluster , in biomedicine, an occurrence of a greater-than-expected number of cancer cases
Cluster headache , a neurological disease that involves an immense degree of pain
Cluster of differentiation , protocol used for the identification and investigation of cell surface molecules present on white blood cells
Winter cluster , in beekeeping, a well-defined cluster of honey bees in cold temperatures
Disease cluster , a grouping of cases of disease
Gene cluster , a group of genes (or proteins, or metabolites) whose expression or concentration is similar across a range of conditions
Cluster of microorganisms, as in a
colony
Cluster analysis , a set of techniques for grouping a set of objects based on intrinsic similarities
Cluster sampling , a sampling technique used when "natural" groupings are evident in a statistical population
Cluster graph , in graph theory, a disjoint union of complete graphs
Clusterable graph, in
balance theory
Cluster algebra , a class of commutative rings used in representation theory
Cluster expansion , a technique in statistical mechanics and quantum field theory
Other uses in science and technology
Topics referred to by the same term