: World awaits U.S. nuclear fusion breakthrough — but experts warn commercial viability a decade away Posted on December 13, 2022 By Charlielikes The U.S. is expected on Tuesday to announce a breakthrough in nuclear fusion, long heralded as a source of zero-emissions and essentially, limitless, energy. Stock Market Tags:‘a, ‘world, awaits, away, billy wilkins, breakthrough, but, commercial, decade, experts, fusion, market, nuclear, stock, stock market, u.s., viability, warn