ChemistryThe world’s most elusive colour is worth billions – if we can find it The discovery of bright yet stable pigments is vanishingly rare, making them hugely valuable. Now chemist Mas Subramanian is unpicking the atomic code of colour and homing in on our most-wanted hue Features
TechnologyNobel laureate says he'll build world’s most powerful quantum computer John Martinis has already revolutionised quantum computing twice. Now, he is working on another radical rethink of the technology that could deliver machines with unrivalled capabilities Features