The ultimate parties have lights! (and fireworks)
Nature delights us with its natural airborne lights, the aurora borealis.. Aurora’s are only seen close to the Artic (north pole) from late November to March.
Named after Aurora, the Roman goddess of dawn.
How does it happen?
The vivid beams of light from aurora borealis result from collisions between charged particles released from the sun’s atmosphere and gaseous particles in Earth’s atmosphere. (National geographic)
The color of the aurora depends on which atom is struck, and the altitude of the meeting. (Howstuffworks)
- Green – oxygen, up to 150 miles in altitude
- Red – oxygen, above 150 miles in altitude
- Blue – nitrogen, up to 60 miles in altitude
- Purple/violet – nitrogen, above 60 miles in altitude
More Killer pictures here from Norway, Denmark, Finland, Greenland, Scotland (and more lands..)