Speed of Light

The speed of light is defined as the speed light travels in a vacuum. This is about 300,000 kilometers per second or 186,000 miles per second. In most equations it is expressed in meters per second (m/s) which is 300,000,000 m/s.

In the movies, traveling faster than the speed of light is common. However, according to Albert Einstein, it is impossible to travel at or even near the speed of light. His theory says that the faster you travel the heavier you become. At close to the speed of light you would become so heavy that you would need an infinite amount of fuel to continue to accelerate.

Some people think Einstein might be wrong, but so far no one has proved it. Until then, we will just have to accept the fact that we will not be traveling to the stars.

Source: The Cosmic Perspective