REASONS FOR THE DARK SPACE, IN SPITE OF THE EXISTENCE OF SUN:
When you stand under the light, there is more light and later when you go farthest, light decreases. Likewise, the space has more light. But when there is more distance from the sun, light diminishes. The star near the sun is known as ‘Proxima Centari’ . Light takes 4.2 yeas to reach us from there. Sun light and the light of the ‘ Proxima Centari’ between both the stars is very dim.