Why NOTHING Can Ever Outrun Light

There is a speed nothing in the universe can ever beat. Not now, not with any future technology.

Light crosses nearly 300,000 kilometres every second, enough to circle the entire Earth about seven times in just one second.

This limit is not about engineering. It is written into the structure of space and time. Anything with mass gets harder and harder to accelerate as it speeds up, because its energy itself adds resistance. To actually reach light speed, you would need infinite energy, which is impossible. Only massless things, like light itself, are allowed to travel at this speed. Everything else is permanently stuck just below it.

So light speed is really the speed of cause and effect, the fastest that any event can influence another. It is not just how fast light moves. It is the maximum speed of reality.

Follow The Cosmic Vault — the universe is stranger than you think.