It is one of the blackest materials on Earth – but it can transform light into any colour you want. Simple to make, this chameleon material could one day boost solar power. The world record for ...

The Conversation is asking kids to send in questions they'd like an expert to answer. Utsav, age 17, wants to know where black falls on the colour spectrum. A colour scientist explains. People love ...

Many camouflage materials are limited by the need for power or external sensors as they effectively record video of what is behind an object to be hidden and display it on the front. Instead, a new ...