Tiny primordial black holes created during the first fraction of a second after the Big Bang may have had company, in the form of even smaller "supercharged" black holes with the mass of a rhino that rapidly evaporated.
A team of researchers has theorized that these tiny "rhino" black holes, which would represent an entirely new state of matter, would have been packed to the brim with "color charge." This is a property of fundamental particles called quarks and gluons that's related to their strong force interactions with each other, and it is not related to "color" in the everyday sense.
