Neurons, the cells in brains and spinal cords that make up the central nervous system, communicate by firing electrical pulses. But scientists have found hints that neurons may transmit light as well, ...

Short pulses from a laser can be twisted into a series of doughnut-like vortices, offering a way to transmit more information using light. We usually encounter vortices in water and air, but similar ...

As its whiskers flitter, the mouse’s brain sparks with activity. A tiny implant records the electrical chatter and beams it to a nearby computer. Smaller than a grain of salt, the implant is powered ...