Superconductivity is a phenomenon where certain materials can conduct electricity without resistance when cooled below a specific temperature, known as the critical temperature. This allows for the flow of electric current without energy loss, making superconductors highly efficient for various applications. The discovery of superconductivity has led to advancements in technologies such as magnetic levitation and MRI machines. Researchers continue to explore new superconducting materials, aiming to achieve superconductivity at higher temperatures, which could revolutionize energy transmission and storage systems worldwide.