Why the excitement?
cientists have achieved a net energy gain in a nuclear fusion reaction for the first time – a genuinely historic milestone in a field that physicists have been working on since the 1950s. A team at a US government facility, the Lawrence Livermore National Laboratory in California, reported that they produced about 2.5 megajoules of energy in a laser experiment that used 2.1 megajoules of energy. That’s potentially wonderful news. Nuclear fusion is the process that powers the sun and all stars, and if it can be replicated on Earth at scale, it
