Breakthrough fusion power announcement expected tomorrow. Here’s what it means

Overnight, news broke that the National Ignition Facility, a U.S. government research lab, was the first to achieve net-positive nuclear fusion. When lasers hit the tiny fuel pellet, it created an explosion that released more energy than the lasers delivered.
For decades, fusion power has been just around the corner. Is this the moment we’ve all been waiting for?
Maybe.
First, the details: The Financial Times reported yesterday that the NIF had sparked a fusion reaction that generated 2.5 megajoules of energy, about 20% more than the 2.1 megajoules of laser energy that zapped the fuel pellet.

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