When did the universe begin? Did it begin ? what happened, before the universe began ? Is there only one universe, or more than one ? If questions like this interest you, you may want to check out this short video on Big Bang.
The Big Bang Theory — in addition to being a popular American TV show — is also a scientific theory that explains how the universe may have come into being.
According to ESA
Most astronomers believe the Universe began in a Big Bang about 14 billion years ago. At that time, the entire Universe was inside a bubble that was thousands of times smaller than a pinhead. It was hotter and denser than anything we can imagine.
Then it suddenly exploded. The Universe that we know was born. Time, space and matter all began with the Big Bang. In a fraction of a second, the Universe grew from smaller than a single atom to bigger than a galaxy. And it kept on growing at a fantastic rate. It is still expanding today.
If you are interested in space, the stars, and the universe, you may want to visit your nearest planetarium, and find out how you can learn more. And, there is always Google. 🙂