If we think first of pure spectral colours consisting of a single wavelength of light, then there’s a simple, obvious answer: ...

A new viral optical illusion has divided the internet once against. For this simple yet reflective challenge, you need to see the image above - which reports completely different colours – for some it ...

We don’t all see the same. Shutterstock. Curious Kids is a series for children of all ages, where The Conversation asks experts to answer questions from kids. All questions are welcome: find out how ...

Among a sea of colours, there's a colour that is popularly called the "colour of life". Can you guess which one it is?

Auroras form when solar wind particles interact with Earth's magnetic field. Aurora colors vary by atmospheric gas and collision altitude. Solar storms brighten auroras, visible at lower latitudes.