# Astrophysics, cosmology and inference

> Study galaxy models, cosmic expansion, black holes and uncertainty in astronomical measurements.

Prerequisites: Gravity, circular motion and observational uncertainty.

Short self-study course; not an accredited qualification or a complete university syllabus.

## Lessons

- [Galaxies, dynamics and dark-matter evidence](https://studybrix.com/en/courses/astrophysics-and-cosmology/astro-galaxies/index.md): advanced; 8 questions.
- [Redshift, expansion and cosmological distances](https://studybrix.com/en/courses/astrophysics-and-cosmology/astro-expansion/index.md): advanced; 8 questions.
- [Black holes, horizons and observable environments](https://studybrix.com/en/courses/astrophysics-and-cosmology/astro-black-holes/index.md): advanced; 8 questions.
- [Astronomical inference, selection and multi-messenger data](https://studybrix.com/en/courses/astrophysics-and-cosmology/astro-inference/index.md): advanced; 8 questions.