Here's how it works:

* Hotter stars emit more blue light: Stars with very high surface temperatures emit most of their radiation in the blue and ultraviolet parts of the spectrum. These stars appear blue-white to our eyes.

* Cooler stars emit more red light: Stars with lower surface temperatures emit more of their radiation in the red and infrared parts of the spectrum. These stars appear red to our eyes.

Think of it like a piece of metal being heated:

* At room temperature, it's a dull gray.

* As it heats up, it glows red, then orange, yellow, then white, and eventually a bluish-white as it gets hotter.

Here's a simplified breakdown of star colors and their approximate temperatures:

* Blue: Over 30,000 Kelvin (K)

* Blue-white: 10,000 - 30,000 K

* White: 7,500 - 10,000 K

* Yellow: 5,000 - 7,500 K (like our Sun)

* Orange: 3,500 - 5,000 K

* Red: Under 3,500 K

So, next time you look at the night sky, remember that the color of a star is a clue to its temperature and gives us a glimpse into its life cycle!