How and why does light travel so fast?

How does light go at 3x10^8 m/s? and why does it go that fast?!

well the eplosions of photons are so big light is propelled at fast rate and seiing as it has no mass there is no friction :D nothing to slow it

It eats Wheaties every morning.

Because the square root of product of permittivity and permeability of free space is much less than 1. These two determine the speed.

because of atmosphere light travel so fast

N. David Mermin wrote a proof of Einstein's theory of special relativity that did not assume the speed of light was constant. Mermin's version, called "Relativity Without Light", assumed some basic properties of the universe (like the fact that it looks the same in every direction), and proved from that the same conclusions, that there is some maximum speed in the universe. Nothing with mass can go that speed because the faster anything with mass goes, the more energy it takes to accelerate just a little bit more. It would take infinite energy to accelerate to the maximum speed. The theory also shows that nothing without mass can go at any other speed. Light is one of very few massless particles out there. It travels at the maximum speed of the universe. Light travels so fast because it travels at the fastest possible speed.