It is impossible to go faster than the speed of light, because there is a thing called time dilation, where the faster you go, the slower time travels (for you personally).
The equation is:
t = t
o/sqrt(1 - v^2/c^2)
where t is the slower time (i.e. the time that someone not moving would measure you going) and t
o is the speed that the person moving really fast experiences.
v is the speed you are going, and c is the speed of light.
if v is greater than c, then 1 - v^2/c^2 would equal a negative number, and
you can't square root a negative number, well, you can but you get infinity as the answer.
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