Imagine an atom so large that it could swallow thousands of other normal atoms. These are called Rydberg molecules, and they are one of the strangest creations of modern quantum physics. In a typical atom, electrons orbit very close to the nucleus. But in a Rydberg state, scientists use lasers to kick an electron into a massive, distant orbit. This single electron can travel hundreds of nanometers away from its center—that is roughly 1,000 times larger than a standard atom. At this scale, the at