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 ...

Space weather forecasting is decades behind Earth’s meteorology. Learn what makes auroras so unpredictable—and the real-time tricks aurora chasers use to catch them.

Auroras aren't over: the sun's decline brings more storms, and a 'last gasp' finale could light up skies in the next 2 years.