radiation, n.Trivia

Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.

Astronauts often see random flashes of light in space, even through closed eyes - this is caused by cosmic rays passing through their eyes or optical nerves.

Astronauts are exposed to the same amount of radiation as 150 to 6,000 chest x-rays.

Light is electro-magnetic radiation