# Sunlight is way older than you think

- Institution: TED
- Department: TED-Ed
- Speaker: Sten Odenwald
- Year: 2015
- Level: For everyone
- Language: English
- Subjects: Astronomy and space, Teaching and learning
- Source: [TED](https://www.ted.com/talks/sten_odenwald_sunlight_is_way_older_than_you_think)
- Licence: [CC BY-NC-ND 4.0](https://creativecommons.org/licenses/by-nc-nd/4.0/) (Non-commercial use only, and no changed versions.)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

It takes light a zippy 8 minutes to reach Earth from the surface of the Sun. But how long does it take that same light to travel from the Sun’s core to its surface? Oddly enough, the answer is many thousands of years. Sten Odenwald explains why by illustrating the random walk problem. \[Directed by Eduardo Sandoval, narrated by Addison Anderson, music by Christopher Bullé-Goyri\].

## Lectures

1. [Sunlight is way older than you think](https://invisiblenetwork.ai/learn/ted/sten_odenwald_sunlight_is_way_older_than_you_think/f1e9d47a59e9), 5 min (TED's player)