Light speed

[lucky45]

As we approach the speed of light and beyond, Wouldnt Light start to gain physical mass as we know,And if so wouldn;t we have to chart a course so we wouldn;t colided with light?

[Sisyphus]

It is impossible to go the speed of light or beyond, and light never has mass.

 

However, it does have energy in proportion to its frequency, and moving towards a light source will increase the frequency of light from that source. This is called "blue shifting," because colors shift towards the blue end of the spectrum. The opposite, when moving away, is called red shifting. (Blue and violet have the highest frequencies of visible light, and red has the lowest.) So, when moving faster and faster towards something, the light coming from it will be higher and higher energy, and that means more and more dangerous radiation.

 

So while it's not really possible to "dodge" light (there's too much of it, and you can't possibly see it coming anyway), the faster you go, the more you will need to shield yourself from the radiation coming from the forward direction.

[lucky45]

Your reply was very good thanks again