How fast is light in miles per second?

The Theory of general relativity suggests that if an object is faster than the speed of light, which is 299,792 km per second, and in a vacuum(no air). This also would mean that such objects would have an infinite mass and a zero-length, which is not possible.

The Large Hadron Collider (LHC) uses an array of 9,300 supercooled electromagnets to guide and accelerate particles – namely protons, around the 27km underground ring at CERN in Geneva, up to speeds extremely close to that of light. 

At their fastest, these particles travel...

Mercury's highly eccentric, egg-shaped orbit takes the planet as close as 29 million miles (47 million kilometers) and as far as 43 million miles (70 million kilometers) from the Sun. It speeds around the Sun every 88 days, traveling through space at nearly 29 miles (47 kilometers) per second, fa...