A supersolid is a state of matter that exhibits both solid and superfluid properties. In such a state, the material has a defined crystalline lattice, but some of its atoms are able to move freely through it. While this peculiar behavior has been predicted by theory and observed in certain experiments, the current consensus among scientists is that a true supersolid state does not exist. Nonetheless, certain materials have shown similar characteristics, such as long-range order and superfluidity, earning them the title of "supersolid candidates". These candidates often exhibit signs of supersolid behavior at extremely low temperatures, but further investigations typically reveal additional complexities that prevent them from being classified as genuine supersolids.