What are those bodies that always move in the sky at night and they resemble stars? What do they do?

Those bodies are called planets. Planets are celestial objects that orbit around a star, such as our Sun. They do not produce their own light, but instead reflect the light of the Sun. Planets move across the sky at night as they orbit the Sun, giving the appearance of bright, star-like objects. Each planet has its own unique characteristics and orbits the Sun at different distances and speeds.

Planets

Planets move around the Sun, reflecting sunlight that allows us to see them at night. They do not produce their own light, like stars do. Planets have different sizes, compositions, and atmospheres, and they can have moons, rings, and other features.