If he proceeds with the question why the color of blood is red, his head will end up in the stars. To find out how, we proceed by asking question after question. Why is the blood red? Because, it has a type of red color corpuscle called hemoglobin. Why is hemoglobin red? Because it contains iron. If the iron will be red? No, iron has oxygen with it. Oxygen and iron combine to form a chemical compound called heme.

blood star

It reflects red light. We see blood as red because the reflected red light reacts on the retina of our eyes. Where did the iron come from in the blood? Processed from food and absorbed into the body. Where does iron come from in food? from various elements in soil and water. It can be said that the supply of iron came from the materials scattered here and there. Where did iron come from?

When the solar system formed, there was a lot of dust and gas as well as iron. The Sun and the other planets of the solar family formed within a large cloud of dust and gas over a wide area. Among them iron enters as 'external'. Where did the iron come from during the creation of the solar system? from a supernova explosion. What is a supernova? Special types of massive star explosions. Where did the iron come from in the supernova? Not from anywhere else, the iron formed inside the belly of the supernova.

How is iron formed in supernovae? When a star forms as a supernova, the initial state is hydrogen gas. Hydrogen is the lightest element. If large amounts of gas come together, the gravitational pressure is so great that the hydrogen atoms inside the star fuse together to form helium atoms through nuclear fusion reactions. Helium is a relatively heavier element than hydrogen. When all the hydrogen inside is gone, the heliums combine to form the heavier element carbon.

When helium is depleted, carbon atoms combine to form the heavier element oxygen. In this way, the iron goes up, and once the star explodes with a very strong upward pressure and scatters in pieces. Scattered by the explosion, the remnants of such a supernova settled in the solar system's infancy.

It was with them that the world was formed and with their blessing the blood stream of many lives was created. Humans are one of them. Even in the veins of the human body, the thermal music of the stars is playing. Red color per millimeter of blood tells that stars are living inside people. Man is part of the stars.

Among the billions of stars in the sky, Sun is actually a very harmless and peaceful star. The heavier the star, the greater its energy. The Sun doesn't have the energy needed to explode like a supernova or make iron. Hydrogens will burn in the sun to become helium. Then the helium will burn to carbon. After that the Sun will lose its power and almost die (become inactive).