Why sky appears dark from the surface of moon?

The sky appears dark from the surface of the Moon because there is no atmosphere to scatter sunlight. On Earth, the atmosphere scatters sunlight, making the sky appear blue during the day. Without this scattering effect on the Moon, the sky remains black, even when the Sun is shining brightly. Additionally, the lack of air means there are no particles or molecules to reflect light, contributing to the stark contrast between the lunar surface and the void of space.