That now classic tagline (from Alien, one of the greatest science-fiction horror movies ever made) hinges on a big assumption that most of us broadly make: space is empty. And it is—mostly. But there ...

Space is silent, or so we’re told. In the vast vacuum between stars and planets, sound waves can’t travel as they do on Earth. But what if that silence is just an illusion? What if the cosmos is ...

What if you could listen to music or a podcast without headphones or earbuds and without disturbing anyone around you? Or have a private conversation in public without other people hearing you? Our ...