The first ever clown in space has returned to Earth.Canadian billionaire Guy Laliberte arrived as planned in Kazakhstan after a landmark space performance to highlight the scarcity of clean water. The show involved singers, dancers and celebrities in 14 cities around the world. Laliberte, founder of the Montreal-based Cirque du Soleil, spent about ten days visiting the International Space Station. The 50-year-old is estimated to have paid some 24-million euros to become Earth’s seventh space tourist. He was accompanied by US Flight Engineer Michael Barratt and Russian commander Gennady Padalka whose space odyssey lasted for more than half a year. Laliberte may be the last space tourist for some time as NASA is retiring the space shuttle, and the ISS’s permanent crew is now larger.