## Why the speed of light is slow?

In 2015, a team of Scottish scientists announced they had found a way to slow the speed of light. By sending photons through a special mask, the researchers altered their shape. In this malformed state, these infinitesimal particles of light traveled slower than normal photons.

### Is the speed of light actually slow?

Light-speed is the fastest that any material object can travel through space. The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second). Undoubtedly, this is incredibly fast, but, it is frustratingly slow while communicating with or reaching other planets (beyond our solar system).

Does light really go round the earth?

The speed of light in a vacuum is about 186,282 miles per second (299,792 kilometers per second). A scientist at NASA animated how long it takes light to travel around Earth, as well as between the planet, its moon, and Mars.

How fast does light travel to Mars?

At its farthest point from us, you would reach Mars traveling with the speed of light in just 22.4 minutes / 1,342 seconds. At its average distance away from us, the destination towards Mars at the speed of light would take you only 12.5 minutes / 751 seconds.

## Is it possible to slow light down?

For narrow frequency ranges, it is possible to slow light down to a few meters per second – if you let the light pass through that medium several times, it might be possible to get a delay of something like a few seconds. There is even stopped light, but that does not work for more than a second either.

### What if the speed of light was slower?

– The Einstein tensor would be greater with a slower speed of light, or smaller with a higher speed of light. This would affect the strength of gravity and feed into the rate at which stars burn, possibly triggering a positive feedback loop and blowing up every star as a pair-instability supernova if you did it right.