At a fundamental level, Mars is a volcanic planet. Its surface is home to the solar system’s largest extinct volcano, Olympus Mons, and another trio of well-known volcanoes at Tharsis Montes. And those are just the highlights: there are many other volcanoes on the surface. Though that volcanic activity ceased long ago, the planet’s surface tells the tale of a world disrupted and shaped by powerful volcanic eruptions.
![](https://scx1.b-cdn.net/csz/news/tmb/2020/1-imagesreveal.jpg)
Source:
https://phys.org/news/2020-12-images-reveal-lava-broke-wall.html