Why are we trying to build a sun on Earth? 🤔 ☀️ Because the sun runs on fusion - and fusion could power our future. In this video, Leah Morgan from Tokamak Energy explains how fusion works, how scientists study it, and why it could transform global energy. Inside machines like the ST40 tokamak, hydrogen nuclei are heated to extreme temperatures - even six times hotter than the sun - and forced together until they fuse into helium. When they fuse, they release extraordinary amounts of energy. Wh