Northern Lights will be visible across much of continental U.S.

On Wednesday evening, thanks to a very powerful sun storm, folks living as far south as Ohio and Indiana will likely catch an exceedingly rare glimpse of the Northern Lights.

As explained, on Labor Day the sun “blasted out a huge cloud of superheated plasma known as a coronal mass ejection (CME).” The CME, which is harmless to humans, is expected to reach Earth overnight on Wednesday, as it is traveling at the breakneck speed of about 200 miles per second. When it does reach our atmosphere it will trigger an incredibly strong “geomagnetic storm,” which happens to cause the Earth’s auroras to light up.

More From Travel + Leisure

Read more: