Question

why the space is dark even though it has so many stars ?

Answer 1

hi this will help you friend- Despite huge number of twinkling and bright stars, sky looks dark. It appears intriguing and unexplainable. But this is not the actual situation. In order to simplify the matter, it would be prudent to understand the stars, galaxies and the rays of light. Sun, in our galaxy called Milky Way, is a moderate star. However there are stars bigger, heavier and radiating more energy in the galaxies. A galaxy is a cluster of stars. There are 100000000000 or 10 raised to the power eleven stars in a galaxy or Milky Way. There are 100000000000 or ten raised to the power eleven galaxies in the universe . That makes 10 raised to the power 22 (or twenty two zeros proceeding one) stars in this universe. This is a very huge astronomical figure. But despite such large number shining stars, there is darkness in the sky at night. Why is it so? I am not considering the reflection from moon which lit the sky at night.

Answer 2

Light will travel in a straight line, until it hits something. Once the light hits and bounces off of an object, it is the atmosphere that allows the ‘scattering’ and the ability to see colors in the spectrum that our eyes see.Earth has an atmosphere where there are many things like mist, water vapour etc on whom the light gets bounced, reflected and hence earth gets illuminated. The surrounded ‘space’ appears black because there isn’t a strong enough atmosphere to cause the ‘scattering’. It means that there are no substances present to reflect the light .
Hope it helps!!