Those who maintain that the facility will represent a health hazard to its employees and individuals in the adjacent community have no supportable evidence of any detrimental effects on humans, plants or animals.

CENTERFORSECURITYPOLICY: Our Contribution To Glasnost

There are distinct similarities between the effects of lengthy space travel on humans and the effects of ageing on Earth.

BBC: What are the health risks of space travel?

If used in humans, these hybrid cells could have unknown effects on the body.

BBC: Stem cell research doubts