[no caste]

I read somewhere (and I'll post the link when I find it), that light is not visible in space. The bit I read said it's a closely guarded secret by NASA, because they figure it will freak out earthlings.

The light we see in our heavens, from earth, is due to its atmosphere like a cornea or eyeglass lens. In space, there's energy (e.g. photons etc), frequencies, temp differences. That's it.

I haven't been in space to verify. Feel free to debunk.

Even in a spacesuit or with artificial atmosphere in a ship, the light will be visible to the human eye.