Yes, there is big news out of nuclear fusion energy research this week. For the first time, scientists at the National Ignition Facility created more energy via fusion than they used to start the reaction. This is a big deal for anybody dreaming of futuristic sustainable energy. That said, the reaction time was shorter than the blink of an eye and it's a far from the long-hoped-for "ignition" — the point at which a controlled fusion reaction can sustain itself without more energy being poured in. But it's still really cool. David Biello at Scientific American has a good piece with lots of numbers and nuance.

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