Seeing seven colours in a rainbow is down to what we expect to see, not reality. In fact, there are many more colours in a rainbow, as our readers explain Around 1665, Isaac Newton performed ...

James Rawlings does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Explore color in the landscape with garden writer Lorene Edwards Forkner as she starts a new seasonal series: Cultivate the ...

Some captains are wearing them, some are not. Rainbow armbands at the Women's European Championship are proving more divisive than perhaps intended for a symbol promoting tolerance and inclusion. UEFA ...