The+Universe

Hey this is Diwei! Do you know know how the universe was created? The most popular theory about the creation of the universe is The Big Bang. According to it, the universe was created in a split second in one huge explosion. All matter was squeezed into a tiny, super-hot, dense ball that was smaller than an atom. The ball gradually expanded as it cooled,then exploded,releasing energy and matter in all directions. We cannot see the Big Bang because it would have happened billions of years ago. But we can see that the Universe is growing steadily bigger. All the galaxies are speeding away from each othwer as the Universe expands. I'm going to add more information about the universe on Monday night!