What rays from space can be seen with closed eyes?

In space flights, astronauts saw points of light, lightning even when their eyes were closed. The reason for such phenomena is the excitation of the retina of the eyes by cosmic rays.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.