How about being able to see things normally completely outside the visual spectrum, like hydrogen combustion or electrical discharges? [David Prutchi] has just shared his incredible work on ...

When sunlight hits Earth’s atmosphere during a lunar eclipse, light frequencies toward the blue end of the visible spectrum ...

A rainbow contains all the colours of the visible spectrum. It is often possible to see a secondary bow, which is slightly larger and fainter than the first – and the colours are in the opposite ...