The president of Space Adventures, a US-based private spaceflight company, says the company is "excited" about re-entering the space tourism sector in a year that has seen a boom in amateur space travel. Space Adventures, headed by Tom Shelley, is set to send Japanese billionaire Yusaku Maezawa to the International Space Station (ISS) from the Russia-leased Baikonur Cosmodrome in Kazakhstan in December. IMAGES AND SOUNDBITES