Scientists in the U.S. have used graphene and light to control a robot dog and develop new groundbreaking method that stimulates and matures lab-grown human brain organoids. The researchers from the ...

It’s a bizarre sight: With a short burst of light, a sponge-shaped robot scoots across a tiled surface. Flipped on its back, it repeatedly twitches as if doing sit-ups. By tinkering with the light’s ...