We may receive a commission on purchases made from links. If you look up at the sky late at night and see clouds of multicolored light swirling in the darkness, you aren't witnessing an alien invasion ...

Wisconsinites have been treated to multiple displays of northern lights this week, as strong geomagnetic storms have led aurora borealis to light up the night sky across the northern United States.

The northern and southern lights, especially active lately, have been treating sky watchers to spectacular shows. But what causes the colors, and why shouldn't you whistle at the aurora? "These ...

Wisconsinites have yet another chance of seeing the northern lights on Tuesday and Wednesday. The aurora borealis may make an appearance in the northern portion of the Badger State Dec. 16, and the ...