With freezing winds whipping their faces, the group, made up of injured workers, trade unionists, occupational health and safety advocates and others, shouted for the Ontario government to stand up, open their ears and listen to the problems of the people.

The astronauts and cosmonauts who venture to Mars and beyond can expect a bombardment of risk factors. A review of the literature on the preparations for exploring outer space makes it clear that the race to distant parts of the Universe will be won by the agency with the best grasp of a host of intangible endurance factors.