The Northern Lights are created by interactions between the Earth’s magnetic field and charged particles from the Sun. This spectacular light show occurs when:
- Solar wind particles collide with atmospheric gases
- These collisions excite gas molecules, causing them to glow
- Different gases produce different colors (oxygen creates green and red, nitrogen produces blue and purple)
The process begins with solar flares ejecting charged particles that travel through space and are guided by Earth’s magnetic field toward the polar regions. When these particles strike atmospheric molecules at altitudes of 60-1000 km, they create the shifting curtains of light we see as auroras.