Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Can rainbows form in a circle? – Henry D., age 7 ...

Is black a colour? Black isn’t in the rainbow, but where does it fit in the colour spectrum? What makes something appear ...

There’s no brown in the rainbow. The color map reveals that brown is actually dark yellow. ... If you turn down the brightness of the light, it will appear as a circle of brown.) ...