# Observing the dark sector

## TL;DR

This paper reviews current and upcoming cosmological surveys aimed at better understanding dark matter, dark energy, and potential modifications to general relativity, highlighting their potential to transform our knowledge of the universe.

## Contribution

It provides an overview of future observational efforts that could significantly improve constraints on the dark sector and test alternative theories of gravity.

## Key findings

- Upcoming surveys will enhance constraints on dark matter and dark energy.
- New observations may reveal deviations from general relativity.
- Improved data will help distinguish between different dark sector models.

## Abstract

Despite the observational success of the standard model of cosmology, present-day observations do not tightly constrain the nature of dark matter and dark energy and modifications to the theory of general relativity. Here, we will discuss some of the ongoing and upcoming surveys that will revolutionize our understanding of the dark sector.