Keen to meet its 2024 deadline for returning to the Moon, NASA has unveiled its first new spacesuits in 40 years.
There are now only eleven usable EMU spacesuits left and new ones won't be available for several years.
The new design is lighter and less bulky than the spacesuits worn by the space shuttle astronauts.
Even with spacesuits and other protective equipment the lunar dust could prove lethal to astronauts.
A scientist who has studied the question for four decades believes the answer lies in the Sun's ultraviolet and x-ray ra...