Timelapse footage of the Aurora Borealis, or northern lights, over a lake. Auroral displays are caused by interactions between energetic charged particles from the Sun, and the Earth's atmosphere. Moving at 400-500 kilometres a second, the charged particles of the solar wind are drawn by Earth's magnetic field to the poles, where they collide with gas atoms and molecules, causing them to emit light. Green light is from oxygen atoms, purple light from nitrogen atoms. Filmed in Minnesota, USA, on 23rd April 2012.
Details
WebID:
C01835834
Clip Type:
RF
Super High Res Size:
1920X1080
Duration:
00:00:33.000
Format:
QuickTime
Bit Rate:
30 fps
Available:
download
Comp:
200X112 (0.00 M)
Model Release:
NO
Property Release
No