# Gravitational-Wave Astronomy

- Institution: Gresham College
- Speaker: Professor John D Barrow FRS
- Year: 2006
- Level: For everyone
- Language: English
- Subjects: Physics, Astronomy and space
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/gravitational-wave-astronomy)
- Licence: [Educational use (Gresham College's terms)](https://www.gresham.ac.uk/terms-and-conditions)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Einstein predicted that gravitational waves exist. What are they, how are they produced, and what is the evidence for their existence? We look at ways in which colliding black holes and other violent events in the universe produce gravitational waves which eventually reach the Earth. Huge new detectors have been built on different continents to detect these signals. What might they tell us about the first moments of the universe, cosmic 'strings' and the highest energy events?

## Lectures

1. [Gravitational-Wave Astronomy](https://invisiblenetwork.ai/learn/gresham/gravitational-wave-astronomy/8daa3004a9e0) (YouTube)