It's an electric discharge which occurs during thunderstorms and volcanic eruptions...
The speed of lightening is nearly 2,20,000 km/h and it's temperature can reach upto soaring 40,000°C
The fact is that lightening is struck nearly 24/7 in some place or the other on the planet. and it's
calculated that nearly 16 million lightnings are struck around the world in an year....
Camera used :- Canon E1000d
F-stop :- f/3
Exposure time :- 1/30sec
ISO Speed :- ISO-400
F-Length :- 7mm
Max aperture :- 3.15
Color Representation :- sRGB
Resolution :- 180dpi(horizontal) / 180dpi(vertical)
Lens Used :- 18-55 set to infinity
Bit depth :- 24
EXIF version :-0221
P.S :- Post posted under Nature 91