Visible light is a very narrow band within this spectrum. And, of course, if light could not move thru space, we could not see the stars in the night sky or the Sun in the day. They are part of the shape of the universe, caused by, and effecting the space time continuum, that is the basis of the shape of the universe. Darkness is NOT blackness. It is entirely possible that darkness may appear, to the understanding eye, as a brilliant white.
Color is a distinction of visible light only.
Black is the presence of visible light, where little or no visible light is reflected to the eye. White is the reflection of virtually all visible light. Red, orange, yellow, green, violet, and the rest of the many colors are the varying degrees of reflection and absorption of the visible part of light. ONLY the visible part of light. True light is not present without the feeling of peace and goodness.