Among the moons in our solar system, Earth's moon is special.
It's very large relative to Earth, and its presence has helped Earth remain habitable. It stabilizes our planet's axial tilt, which helps create a climate and seasons more amenable to life. It also generates the oceans' tides, which helps coastal regions be the biodiverse and rich regions they are.
https://phys.org/news/2025-11-habitable-zone-planets-red-dwarfs.html
