# The Invisible Universe

- Institution: Gresham College
- Speaker: Professor Ian Morison
- Year: 2008
- Level: For everyone
- Language: English
- Subjects: Astronomy and space
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/invisible-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)

We believe that 96% of the mass and energy content of our Universe is invisible. Some is in the form of Dark Matter whose presence we can only detect by its gravitational influence. The majority, called Dark Energy, appears to be ripping our Universe apart.

## Lectures

1. [The Invisible Universe](https://invisiblenetwork.ai/learn/gresham/invisible-universe/10dbab9a40cd) (YouTube)