Rocky planets larger than our own, so-called super-Earths, are surprisingly abundant in our Galaxy, and stand as the most likely planets to be habitable. Getting a better idea of their interior structures will help predict whether different planets are able to generate magnetic fields—thought to be conducive for life to survive.
![](https://scx1.b-cdn.net/csz/news/tmb/2019/istherelifeo.jpg)
Source:
https://phys.org/news/2019-11-life-super-earths-cores.html