answersLogoWhite

0

The light from the Sun can only light up half of the Earth at a time, because it is a sphere. When one part of the Earth is facing away from the Sun, there is nothing besides the Moon and the planets to reflect sunlight back at the night side. Just after sunset and just before dawn, some of the sunlight scatters through the upper atmosphere to provide some illumination.

User Avatar

Wiki User

14y ago

What else can I help you with?