Earth’s seasons are caused by the tilt of our planet’s rotational axis to the orbital plane or obliquity. Mars’ obliquity is currently about 25 degrees, which is not much different from Earth’s 23 degrees. However, numerical calculations by scientists at the Paris Observatory and Massachusetts Institute of Technology suggest that this near-agreement is a coincidence.
![](https://scx1.b-cdn.net/csz/news/tmb/2021/theobliquity.jpg)
Source:
https://phys.org/news/2021-01-obliquity-mars-periodic-bedding-tithonium.html