March 30, 2025 • The U.N. has identified Kabwe, a city of almost 300,000 people in Zambia, as one of the most polluted places on the planet. Who is to blame? And can justice be done?

Over nearly six decades, this fantastically inventive artist experimented with paint, turning it into a sculptural medium. Our critic calls his survey “scintillating and sweeping.” By ...

Nuclear physics is the study of the protons and neutrons at the centre of an atom and the interactions that hold them together in a space just a few femtometres (10-15 metres) across. Example ...