Stars have their own light

Stars
Stars are celestial objects made up of hot gases, primarily hydrogen and helium. They are massive and powerful, and one of their distinguishing features is that they emit their own light. Stars generate light and heat through a process called nuclear fusion, which occurs in their cores. The intense pressure and temperature in the core cause hydrogen atoms to fuse together, forming helium and releasing a tremendous amount of energy in the form of light and heat. This energy is then radiated outwards from the star, allowing it to shine brightly in the night sky.

Moons, Asteroids, and Earth
Unlike stars, moons, asteroids, and Earth do not have their own light. They do not generate energy through nuclear fusion, and therefore they rely on external sources of light for visibility.

Moons
Moons are natural satellites that orbit around planets. They shine in the night sky because they reflect sunlight. Moons do not emit their own light but rather reflect the light that they receive from the Sun. This reflected sunlight allows us to see the moon illuminated in various phases.

Asteroids
Asteroids are rocky objects that orbit the Sun, primarily found in the asteroid belt between Mars and Jupiter. They are too small and do not have the necessary conditions for nuclear fusion to occur. As a result, they do not emit their own light. When asteroids are visible from Earth, it is because they are reflecting sunlight.

Earth
Earth, our home planet, does not have its own light source either. During the day, we see sunlight because the Earth's atmosphere scatters and filters the sunlight, making it visible to us. At night, we see the light from stars and other celestial objects, including the moon, which reflects the Sun's light.

In conclusion, stars are the celestial objects that have their own light. They generate light and heat through nuclear fusion, while other objects like moons, asteroids, and Earth rely on external sources of light for visibility.