When we think about going on a holiday, we think about going to a different city, a different state, or a different country. But what if you had the option of going to space as a tourist? The possibility of going to space for fun is closer than you think. Next year, US tech company SpaceX will send two space tourists on a one week trip around the moon. We speak to Dr. Patrick Collins to learn about the potential of space tourism and how it can change the world