And it’s a USB! Well, that’s what Science Daily says it’s made of, anyway. It’s formally called a “Xi_b^*” and it’s just been spotted at the Large Hadron Collider:

In the course of proton collisions in the LHC at CERN, physicists Claude Amsler, Vincenzo Chiochia and Ernest Aguiló from the University of Zurich’s Physics Institute managed to detect a baryon [...]