Our galaxy may be teeming with rogue planets, gravitationally unbound to any star. An international team of scientists, led by Polish astronomers, has announced the discovery of the smallest Earth-sized free-floating planet found to date.
![](https://scx1.b-cdn.net/csz/news/tmb/2020/anearthsized.jpg)
Source:
https://phys.org/news/2020-10-earth-sized-rogue-planet-milky.html