Why Is Space Black?

Because somebody forget to pay the electricity bill. Sorry, just kidding...

Our sun is a huge star which emits a tremendous amount of light. However, like our sun, there are so many stars in the Universe that counting them is almost impossible.

So, if there are so many stars, the space shouldn't be black or dark, right?

However, that is NOT the case.

According to a study, the space appears black because the Universe is expanding.

This expansion is causing the visible light emitted by a stars to stretch out so much that when it reaches our eyes. They cannot detect it.

As our eyes cannot detect any visible light, the space appears black to us.

Moreover, light has a specific speed limit. So, light from far far away stars has not even reached us. Thus, the space appears black.

Thanks For Reading!

Author: Muniza Shah