You might say it’s just a pigment of your imagination ...

We live in a world ablaze with colour. Rainbows and rainforests, oceans and humanity, Earth is the most colourful place we know of. But the colours we see are far more complex and fascinating than ...

When you look up at the night sky, it seems deep black with bright stars scattered across it. That familiar view leads many to assume that the universe itself must be black. But astronomers have asked ...

Understanding the true colou of the Sun, along with concepts such as Rayleigh scattering, Earth's atmosphere, sunlight ...