PhysicsStephen Hawking's final theorem turns time and causality inside out In his final years, Stephen Hawking tackled the question of why the universe appears fine-tuned for life. His collaborator Thomas Hertog explains the radical solution they came up with Features
PhysicsHidden corridor in Egypt’s Great Pyramid mapped with cosmic rays A 9-metre-long corridor in the 4500-year-old Great Pyramid of Giza that was discovered in 2016 has now been mapped, and researchers have used a tiny camera to peer inside News