Colour is an illusion, not part of the real world We think of colour as being a fundamental property of objects in life: green trees, blue sky, red apples. But that’s not how it works.

Hattie Stiff was born with cystic kidneys and received her first transplant when she was two and a half years old - but then needed another.

In some way colour has a way of making us feel a certain way. Colour therapy, also known as chromotherapy, is a form of therapy that uses colour and light to treat certain mental and physical ...

Animals usually appear blue to the human eye because of microscopic structures in their skin, feathers, scales or shells, or because they take on the colour when they eat certain foods. Even among ...