# Cosmology

## Structure: Flat, Curved, Open, or Closed?

* [Review: Hubble constant, 2025](https://www.annualreviews.org/content/journals/10.1146/annurev-astro-052622-033813)

## Composition: Matter, Dark Matter, Dark Energy

* [Review: Dark matter searches](https://www.annualreviews.org/doi/full/10.1146/annurev-astro-081710-102528)
* [Review: Dark energy and the accelerating universe](https://www.annualreviews.org/doi/full/10.1146/annurev.astro.46.060407.145243)
* [Review: Cosmological tests of gravity](https://www.annualreviews.org/doi/full/10.1146/annurev-astro-091918-104423)

## Formation: Cosmic Microwave Background and the Big Bang

## Evolution: Hubble's Experiment and the Expanding Universe

* [Review: The Hubble constant](https://www.annualreviews.org/doi/full/10.1146/annurev-astro-082708-101829)
* [Review: Seeing Cosmology](https://www.annualreviews.org/doi/full/10.1146/annurev-astro-081811-125526)