Light can be conceptualized as having tangible, spatial qualities. In this context, light is treated with care and thought, ...

Materials scientists can learn a lot about a sample material by shooting lasers at it. With nonlinear optical microscopy—a ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...

Normal cellular processes in living things — from germinating plants to our own cells — create biophotons, though escaping light isn’t visible to us.