In the future, some of us will be wearing clothes made of bacteria that change colors based on the level of radiation we're exposed to. At least, that's the hope of scientists and a fashion designer in Scotland.
Too much ionizing radiation exposure can cause long-term health problems, including cancer and reproductive issues. Radiation exposure is considered especially risky for astronauts because galactic cosmic radiation (GCR, or "space radiation") is strong, and space travelers have less protection from it when they leave the relative safety of Earth's magnetic field.
