Rocks hold all sorts of secrets. These secrets are materials used to create and build things. It’s amazing to think that most things out in space are just rocks of all shapes and sizes. Rocky planets are called “terrestrial planets”. In our solar system, there are only four terrestrial planets: Mercury, Venus, Earth, and Mars. However, Earth is the only terrestrial planet in this solar system that harbors life. It’s interesting to imagine if other terrestrial planets out there in the universe could be habitable for us, or maybe other beings we are still unaware of. There’s a lot of unsolved mysteries in this world that probably won’t ever get close to the truth.
Source: https://www.pexels.com/photo/sky-space-milky-way-stars-110854/
