The opportunity is available through the Rising Star programme. Candidates should be the ages of 18-30 (must be no older than 30 by Sept 2015). Organisers expect to be impressed with applicants determination and passion for the impossible.
However, it is important to note that the nature of space travel means pre-screening will be on the basis of sound physical and mental health, and as such. Also it is necessary to learn something about the limits associated with space travel before applying.
The participation is free of charge and the programme itself is fully funded.
Learn more here.