# How the Earth Moves

- Institution: Gresham College
- Speaker: Professor Carolin Crawford
- Year: 2014
- Level: For everyone
- Language: English
- Subjects: Astronomy and space
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/how-earth-moves)
- 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)

Our spaceship Earth is in constant motion – rotating and revolving as it traverses through space. This is a story of our evolving understanding of the geography of Earth’s position in space – a story of parallax, aberration and astrometry that stretches from the ancient Greeks to the most modern satellite, Gaia.

## Lectures

1. [How the Earth Moves](https://invisiblenetwork.ai/learn/gresham/how-earth-moves/343b4241037d) (YouTube)