It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation ...

As a result, the blue light is scattered in all directions, painting the sky with its signature color. Without an atmosphere to scatter sunlight, like on the Moon, the sky would remain black ...

For the record, the dress is definitely black and blue. But it appears white and gold to some people due to a phenomenon called color constancy ... a window with a blue sky. It also depends ...