How Would We Know There's Life on Earth? This Bold Experiment Found Out
Thirty years ago, astronomer Carl Sagan convinced NASA to turn a passing space probe’s instruments on Earth to look for life — with results that still reverberate today
![How Would We Know There's Life on Earth? This Bold Experiment Found Out](https://static.scientificamerican.com/sciam/cache/file/0F54B659-1818-445C-871A895F99D8023C_source.jpg?#)
Thirty years ago, astronomer Carl Sagan convinced NASA to turn a passing space probe’s instruments on Earth to look for life — with results that still reverberate today
What's Your Reaction?
![like](https://news.sciencex.in/assets/img/reactions/like.png)
![dislike](https://news.sciencex.in/assets/img/reactions/dislike.png)
![love](https://news.sciencex.in/assets/img/reactions/love.png)
![funny](https://news.sciencex.in/assets/img/reactions/funny.png)
![angry](https://news.sciencex.in/assets/img/reactions/angry.png)
![sad](https://news.sciencex.in/assets/img/reactions/sad.png)
![wow](https://news.sciencex.in/assets/img/reactions/wow.png)