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21 November 2012

Huge signal-distorting space bubbles spawn along equator as night falls

In our Sun’s most active years, enormous snake-like bubbles of plasma emerge overhead on Earth at nightfall. You can’t see them, but these bubbles can bend and disperse radio waves, interfering with communications networks. Now, a satellite soaring low in Earth’s orbit has observed the continuous birth of these evening-time bubbles for the first time, and scientists have started to chart their evolution.


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