The aurora borealis in the sky near Rovaniemi in Lapland, Finland, October 7, 2018. Alexander Kuznetsov/Reuters

Scientists have confirmed for the first time how the northern lights form in the sky.

Electromagnetic waves transfer energy to electrons, which then hitch a ride toward Earth.

The electrons eventually collide with atoms and molecules in a brilliant light show – the aurora.

See more stories on Insider’s business page.

For years, scientists hadn’t been able to confirm how the northern lights cast their spectral glow across the sky.

But they’d long held a theory. First, eruptions on the sun release a stream of charged particles called solar wind. Those particles interact with Earth’s magnetosphere – the region around the planet controlled by its magnetic field. In the process, the field launches powerful electromagnetic

Read More At Article Source | Article Attribution