SMRTR Science & EngineeringFeb 26, 2026The Guardian

A deafening nuclear fusion reactor: why you wouldn’t want to hear the sun

SMRTR summary

The sun generates massive sound from nuclear fusion reactions that would exceed 100 decibels if space contained air, comparable to chainsaws or rock concerts. More dangerously, the sun's low-frequency pressure waves resemble seismic vibrations stronger than earthquakes that could destroy buildings and bridges if they reached Earth, making the 90-million-mile vacuum barrier essential for our peaceful existence.

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