The same solar region that brought an outburst of night-time beauty in early May is coming back around. But things have changed, a space weather expert tells NPR.

The National Oceanic and Atmospheric Administration says there have been measurable effects and impacts from the biggest geomagnetic storm in decades.

The sun can affect people's electronics, the power grid and communications and navigation systems. But scientists predict that for the next decade or so, the sun's activity will not be too disruptive.