The Large Hadron Collider has successfully created a "mini-Big Bang" by smashing together lead ions instead of protons.

The experiment created temperatures a million times hotter than the centre of the Sun in the circular tunnel under the French-Swiss border.

They hope to learn more about the plasma the Universe was made of a millionth of a second after the Big Bang, 13.7 billion years ago.

Dr David Evans who is one of the researchers working on the experiment spoke to the BBC's Ben Brown about his excitement.