Blue Giant Stars: Take two! The spectrum of knowledge

There are stars in miniature form from red dwarfs to the sun-like stars we know of as blue massive giants. It can be hundreds of times the size of the sun. Not recommended: there is a lot going on in the area. And yet we owe a lot to the blue giants: the carbon that makes up life or the oxygen we breathe every moment. Without the blue giants, we probably wouldn’t exist.