# Large telescopes and why we need them

- Institution: Gresham College
- Speaker: Professor Carolin Crawford
- Year: 2012
- Level: For everyone
- Language: English
- Subjects: Astronomy and space
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/large-telescopes-and-why-we-need-them)
- 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)

Beyond the Solar System, all astronomers have to work with is the light that falls to the Earth from distant cosmic objects. Newer, larger telescopes are always needed to boost scientific progress, and the next generation of facilities - whether the 42m diameter optical-infrared Extremely Large Telescope, or the Square Kilometre Array of radio dishes - will represent a huge advance. We shall look at the science driving the need for such large telescopes, through history and to the present-day and beyond.

## Lectures

1. [Large telescopes and why we need them](https://invisiblenetwork.ai/learn/gresham/large-telescopes-and-why-we-need-them/35e091ca45ce) (YouTube)