- Aurora Borealis
The Aurora Borealis or Northern Lights are the shimmering, pulsating lights often seen on clear winter nights in a variety of shapes and colours and usually over countries such as Canada in the middle to higher latitudes. The Aurora Borealis results from the collision between fast-moving particles from the sun and rarefied gases in the upper atmosphere. Green, the most common colour, is caused by the electrons striking very cold oxygen. Pink is produced when nitrogen is hit.
- Date modified: