Is there anyone out there? This is an age-old question that researchers have now shed new light on with a study that calculates there could be more than 30 intelligent civilizations throughout our Galaxy. This is an enormous advance over previous estimates which spanned from zero to billions.
![](https://scx1.b-cdn.net/csz/news/tmb/2020/galaxy.jpg)
Source:
https://phys.org/news/2020-06-intelligent-life-galaxy.html