How much faster is the speed of light compared to earth speed?

Answer 1

The speed of light is not always fixed at 299792458 m/s. In earth's atmosphere, the speed of light slows, though this is negligible. In water, light travels at 75% of c, and in a diamond, light travels at .40 c. C is the speed of light, rounded to 300,000 km/s.

Answer 2

The speed of light decreases as it enters the Earth's atmosphere. This is because the atmosphere/air of Earth is more optically dense than space, a vacuum (i.e. there is no matter in outer space).

Answer 3

OK. That's going to heavily depend on what you mean by "Earth speed".

There. I said it.

I'll give it one shot, and take a wild guess that you mean the speed of

the Earth in its orbit around the sun.

That speed is almost exactly .0001 of the speed of light.

Answer 4

The speed of light in air depends on the temperature, pressure, and humidity

of the air, and to a small extent on the wavelength of the light.

If all of those numbers are something like 'average', then the refractive index

of air is about 1.00027, so the speed of that light in that air is

(speed of light in vacuum) divided by (1.00027)

Answer 5

The speed of light is about 670,616,629 mph, while Earth's average orbital speed around the Sun is about 67,000 mph. Therefore, the speed of light is approximately 10,000 times faster than the speed at which Earth orbits the Sun.