If outer space is black, why is the sky blue?

For years, stargazers have gazed at the night sky in wonder, marveling at the billions of stars that seem to fill the emptiness of space.

However, if you were to take a closer look, you would notice that space isn't actually black. In fact, it's a deep shade of purple. So why is the sky blue?

The answer has to do with the way sunlight interacts with the atmosphere. Sunlight is made up of a spectrum of colors, each with a different wavelength. Blue light has a shorter wavelength than other colors, and when it strikes particles in the atmosphere, it is scattered more than other colors.

This is why the sky appears blue when viewed from Earth - because we are seeing the blue light that has been scattered by the atmosphere.