History of the Universe

It all started with energy. Energy is used to create everything there is today. The first existing atom is Hydrogen. 13.7 million years ago Hydrogen atoms created galaxy. Gravity then squeezes together clouds and dust together causing pressure and heat to rise. And that is when Hydrogen atoms start to merge creating Helium. This is how stars are made. Stars produces elements, it helps combine hydrogen into helium, helium into lithium and many more elements. Another way of producing elements is when stars explode. These explosions are called supernovas. The explosion provides enough energy to create other elements such as uranium gold and the rest of the elements. Continue reading →