Holograms are so last year: team develops 3D images floating in thin air

Three-dimensional recordings like those carried by R2D2 in the Star Wars film are closer to reality than you’d think. Examples of the colour and resolution quality of the images. Image credits Smalley et al., 2018, Nature. Brigham Young University (BYU) professor and holography expert Daniel Smalley has wanted to recreate the scene ever since we first…