A researcher at the University of Texas at Austin has devised an invisibility cloak that could work over a broad range of frequencies, including visible light and microwaves. This is a significant ...

Science and fiction always had a chicken and egg relationship: it’s hard to tell which one informs the other. Take invisibility, a fantastical notion brought into popular culture first by HG Wells’ ...

The great unappreciated weakness of invisibility cloaks is that they only make things invisible to human eyes. Or x-ray imagers. Or ultraviolet sensors, infrared image analyzers, echo-location audio ...