Wormholes Open for Transport Physics 14, s28 Peter Jurik/stock.adobe.com × A wormhole is a hypothetical shortcut that could connect one side of a galaxy to another. Despite populating many science-fiction plots, wormholes have been hard to justify theoretically. Now, two separate groups present models that make wormholes seem less exotic and slightly more credible for human use [1, 2]. The idea of a wormhole is nearly as old as that of a black hole. However, the existence of wormholes remains an open question. Even if a wormhole could form, the gravitational attraction of the matter inside i...