New Scientist: In light of the budding space tourism and commercial space industry, Astronauts4Hire was formed to provide a pool of skilled commercial scientist-astronauts to fly experiments in space on the commercial vehicles being developed. Currently numbering 17, its members receive spaceflight training, and will eventually complete micro-gravity and high-gravity flights. In New Scientist, writer Celeste Biever interviews president and cofounder Brian Shiro about how and why the group was formed.