MARK BROWN, IPSWICH
HOW DOES NUCLEAR FUSION WORK?
Nuclear fusion is the process by which stars, including the Sun, generate their energy. In a fusion reaction, atomic nuclei ‘fuse’ together to form heavier nuclei. For this to happen, the nuclei need to have enough energy to overcome the repulsive force they experience because they are both positively charged. They also need a good chance of colliding with each other in the first place.