[scientist@work (OP)]

I mean there is no real explanation to it, why the sky is blue?!
I ask myself this question a lot.
Hopefully, someone has an answer to this...

[Kryptid]

I mean there is no real explanation to it

Actually, there is. It's because of a phenomenon called Rayleigh scattering: https://en.wikipedia.org/wiki/Rayleigh_scattering

[Zer0]

Gases and particles in Earth's atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.

P.S. - 👍