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Sweden Has a 1,400 MW Reactor, the Most Powerful in the Country: What Stopped It Three Days in 2013 Weighed Almost Nothing

Summary by SciencePost
In September 2013, the most powerful Oskarshamn 3 (1,400 MW) reactor in Sweden had to be stopped as a matter of urgency. The culprit? A massive swarm of moon jellyfish that obstructed the cooling water intakes. These gelatinous 95% water creatures paralyzed a facility capable of feeding millions of households. More
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In September 2013, the most powerful Oskarshamn 3 (1,400 MW) reactor in Sweden had to be stopped as a matter of urgency. The culprit? A massive swarm of moon jellyfish that obstructed the cooling water intakes. These gelatinous 95% water creatures paralyzed a facility capable of feeding millions of households. More

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SciencePost broke the news on Sunday, August 2, 2026.
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