The simplest answer to this question requires that you use your imagination to picture our local star – the sun – and its family of planets. The sun’s light pours outward to illuminate every portion of our solar system so that the space around the sun is almost entirely flooded with light.
But there are dark places. These are in the shadows of planets, moons and other objects in orbit around the sun. And it’s these shadows that create night. Earth’s shadow extends over a million kilometers into space. Our planet’s shadow is so long it can brush the face of the moon during a lunar eclipse. Lunar eclipses are relatively rare. But, every day, as Earth turns on its axis, the part of the planet you’re standing on turns for a time so that you face into Earth’s shadow. When you face into the shadow, it’s night. When Earth turns so that you again face the direction of the sun, it’s day.
On any clear evening, you can see the curved line of Earth’s shadow ascending in the eastern sky. It gets higher in the east as the sun sinks below the western horizon.
To me the answer given is incomplete. We see the blue as the color of the sky during the day time due to scattering of the Sunlight. During night the color of the sky is black not only due to the shadow of the Earth but that is the true color of the sky. This could be understood by the fact that from the outer space (where there is no air nor dust particles to have the scattering of light) any star is seen as a bright sphere but the rest of the sky is BLACK only.
Where can i find your rss? I cant find it