Cosmic rays don't need to be ultra energetic to get velocities that are close to the speed of flight. This already occur for much less energetic ones.

You are right, I should have specified that the cosmic rays of less energy also travel at speeds close to that of light.

Do you know that cosmic rays are at the origins of the development of life on Earth?

It is to imagine that phenomena like the cosmic rays have originated for thousands of years, only that until now we have been able to begin to understand them.

Somewhere I come to read that many of the evolutionary phases of the human race have something to do with cosmic rays.

Thanks for the tips by the way.