This book covers the topic of Tourists trips to Space, which are not that far away, and some have already happened. Space travel is no longer the exclusive privilege of nation-states, and trained crew. For a while now, it has been open to health adventurers with lots of money. As more facilities are built to address the demand, less expensive options will become available. Space will never be perfectly sate, but it will always be an exotic location.
In 2004, the first privately built and operated vehicle to achieve human spaceflight, SpaceShipOne, made three flights to a sub-orbital altitude. This will eventually drive down the cost of accessing space for tourists. There are no technical issues, only financing and business operations to be defined.