PhysicsThe physicist searching for quantum gravity in gravitational rainbows Claudia de Rham thinks that gravitons, hypothetical particles thought to carry gravity, have mass. If she’s right, we can expect to see “rainbows” in ripples in space-time Features
PhysicsIs space-time quantum? Six ways to unpick the fabric of the universe One of the biggest questions in physics asks whether space-time is classical or quantum in nature. From slow neutrinos to quantum foam, these experiments are hoping to finally answer it Features