Kong Kong University of Science and Technology physicists have come up with a way to cloak at a distance, using a “complementary material” to hide an object outside it.

All invisibility cloaks to date only work by hiding an object embedded inside them. Now a group of have worked out how to remotely cloak objects that sit outside a cloaking material. The trick is to make the cloaking material with optical properties that are exactly complementary to the space outside them.