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5 images of some flowerheads such as petunias and lilies that start as a narrow base and widen to an open shape

Gamma rays might make you think of cancer, harmful radiation or superheroes. But gamma rays have lots of uses: food safety, manufacturing and even medicine!

Medical biotechnology allows scientists to make changes to the genomes of living things. What are the pros and cons of having access to techniques like these?

When a person has cancer, CAR-T Therapy uses their own cells to destroy the cancer cells in their body.

Heavy metal is a term for some toxic chemical elements. They can cause problems like bioaccumulation, but are useful in nuclear medicine and medical imaging.

This backgrounder explains the effects of radiation on cells and DNA.