Until now, invisibility cloaks were only a fantasy of science fiction. Yet recently, scientists at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and the University of California Berkeley developed an invisibility cloak that can conceal an object from visible light using nanotechnology. Although researchers have only managed to conceal an object in a microscopic scale, it is theoretically possible to extend the range to macroscopic scales.

"This is the first time a 3D object of arbitrary shape has been cloaked from visible light," said Xiang Zhang, director of Berkeley Lab's Materials Sciences Division.