Weakly Interacting Massive Particles, or WIMPs, are hypothetical particles that are candidates for dark matter. They are called "weakly interacting" because they interact with normal matter only through the weak nuclear force and gravity, making them difficult to detect. WIMPs are predicted to have mass, which distinguishes them from other dark matter candidates like axions or photons. Scientists believe that WIMPs could be produced in the early universe and may still exist today. Various experiments, such as those conducted in underground laboratories and particle accelerators, aim to detect these elusive particles. Discovering WIMPs would provide significant insights into the composition of the universe.