# What a planet needs to sustain life

- Institution: TED
- Department: TEDxBoulder
- Speaker: Dave Brain
- Year: 2015
- Level: For everyone
- Language: English
- Subjects: Biology
- Source: [TED](https://www.ted.com/talks/dave_brain_what_a_planet_needs_to_sustain_life)
- 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)

"Venus is too hot, Mars is too cold, and Earth is just right," says planetary scientist Dave Brain. But why? In this pleasantly humorous talk, Brain explores the fascinating science behind what it takes for a planet to host life -- and why humanity may just be in the right place at the right time when it comes to the timeline of life-sustaining planets.

## Lectures

1. [What a planet needs to sustain life](https://invisiblenetwork.ai/learn/ted/dave_brain_what_a_planet_needs_to_sustain_life/c4b49f20cd95), 14 min (TED's player)