Space is big really big you might think its a long way to your nearest newsagent but that's just peanuts compared to space.
Scientist John Biggar explained how big space is "There are billions of stars in our galaxy and billions of galaxies in the Universe," he said. "The distance between the earth and our sun is 93 million miles and if you were to use a scale of one inch for 93 million miles it would be four miles to the next star after our sun.
"The universe is continuing to expand and if you can imagine it as a giant balloon you no what happens when you keeping blowing a balloon up it eventually bangs and this is how the universe will end."
John is convinced that the Big Bang did not start the universe but will end it.