Made From Stardust

                              

                                           By: Tsegazeab Beteselassie 

Nebula: The birthplace of stars.

    "We are made from stardust". When most people hear that, they are probably going to say, "yeah right!" Well, we are. Let me explain. Everybody knows that we are made of skin,bones, teeth, and so on. Well, where do those come from? From reproducing cells. And where do those come from? When you were born. And where did your mother come from? Your grandmother, and so on and so on. So then we get back to the very first life on earth. It was probably algae (I don't study plant life).  Whatever plant it was, it's energy came from the sun. "But", you say, "that's only energy, not the plant itself. Well, the earth supplies it with nutrients. But the earth came from the leftover debris from the sun. And where the sun come from?

    The sun came from a nebula in outer space. But the nebula couldn't be there from the beginning of time (the big bang). It must have came from something. And I know what it is. It came from a supernovae. Let me tell you what a supernovae is, for the people who don't know what it is. If you already know, skip to the next paragraph. Okay, so here's what a supernovae is. There are stars like our sun. We may think it is big but it is actually very tiny compared to the  stars in our night sky. And stars fuse hydrogen into helium to create energy. Nuclear fusion at work. When they run out of hydrogen, they fuse helium together into lithium and so on. Well, only until the star starts to fuse iron. Then, the power turns off. The core of the star gets crushed into a millionth of it's size, (this is not our star, then it would be impossible for this to happen) by the stars own gravity. With a big star, it can't take the pressure. It blows up. This is called a supernovae (supernova means more than one). So that's a supernova. "But", you say, "what about heavier elements"? "They couldn't be formed by a supernovae". The answer is simple. Bigger stars.

   There are supernovae and then there is type 2 supernova. Also called a hypernova. When there is a hypernova, the energy output is one hundred times greater than a supernova. "What's a hypernova," you might ask. Well, let me tell you. By now, you know what a supernova is. A hypernova is just a bigger supernova. Except for it has a 100 times more energy output than a supernova. "So that's where gold came  from!". So nebulae come from the leftover debris from a hyper or supernova. And so our sun formed from the debris now called a nebulae (one nebula). My right hand might come from a different star than my left hand. So we are made from stardust. 

Email me at Tsegazeab12@gmail.com.

Thank you.