# The Age of the Universe

- Institution: Gresham College
- Speaker: Professor Carolin Crawford
- Level: For everyone
- Language: English
- Subjects: Astronomy and space
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/age-universe)
- Licence: [Educational use (Gresham College's terms)](https://www.gresham.ac.uk/terms-and-conditions)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Detailed observations of galaxies, clusters, and the fine structures in the cosmic microwave background have refined the age of the Universe to 13.75 billion years. But they have also revealed the unexpected presence of dark energy, causing a huge paradigm shift in modern cosmology.

## Lectures

1. [The Age of the Universe](https://invisiblenetwork.ai/learn/gresham/age-universe/879ddb0ded14) (YouTube)