# Tests of Gravity with Galaxy Clusters

## TL;DR

This paper reviews recent progress in testing gravity theories using galaxy clusters, highlighting how deviations from General Relativity affect cluster properties and discussing future survey potentials.

## Contribution

It provides a comprehensive overview of current constraints on gravity deviations from galaxy cluster observations and discusses upcoming survey opportunities.

## Key findings

- Progress in constraining gravity deviations using galaxy clusters
- Signatures of modified gravity in cluster properties
- Future surveys will enhance gravity tests with detailed cluster data

## Abstract

Changes in the law of gravity have far-reaching implications for the formation and evolution of galaxy clusters, and appear as peculiar signatures in their mass-observable relations, structural properties, internal dynamics, and abundance. We review the outstanding progress made in recent years towards constraining deviations from General Relativity with galaxy clusters, and give an overview of the yet untapped information becoming accessible with forthcoming surveys that will map large portions of the sky in great detail and unprecedented depth.