Fusion energy research focuses on harnessing the power of nuclear fusion, the process that powers the sun. In fusion, light atomic nuclei combine to form a heavier nucleus, releasing a significant amount of energy. Scientists aim to replicate this process on Earth to create a clean and virtually limitless energy source. Researchers use various methods, such as magnetic confinement in devices like tokamaks and inertial confinement with lasers, to achieve the extreme temperatures and pressures needed for fusion. Successful fusion energy could reduce reliance on fossil fuels and lower greenhouse gas emissions, contributing to a more sustainable energy future.