a further five space tourists have visited the ISS (including former senior Microsoft developer Charles Simonyi, who has been twice), with the latest being Canadian Guy Laliberté, the founder of the Cirque du Soleil. Whilst there, Laliberté hosted a television program promoting issues related to water shortages on Earth. There have, as yet, not been any suborbital (see below)space tourists although the success of the Ansari X-Prize competition has provided a major impetus towards the establishment of that sector of the industry.