Fusion is a process where two light atomic nuclei combine to form a heavier nucleus, releasing a large amount of energy in the process. This is the same reaction that powers the sun and other stars, where hydrogen nuclei fuse to create helium. The energy produced through fusion is what makes stars shine and provides the heat and light necessary for life on Earth. In recent years, scientists have been exploring fusion as a potential source of clean energy. Unlike fossil fuels, fusion produces minimal waste and does not emit greenhouse gases. If successful, nuclear fusion could revolutionize energy production, providing a nearly limitless and sustainable energy source for the future.