Is supersymmetry realised in nature?

Supersymmetry (SUSY) postulates a partner for every Standard Model particle, elegantly solving the hierarchy problem and providing a dark matter candidate. The LHC has found no evidence of SUSY at the TeV scale.

Whether SUSY exists at higher scales, in a different form than the popular MSSM, or simply isn't realised in nature, is one of the major open issues in BSM physics.