In this case, the fish doesn’t make the light itself. Instead, luminous bacteria, which live within the lure, do the glowing. It’s of mutual benefit: The bacteria get shelter, the fish gets light.

Imagine stepping outside at night and being greeted by softly glowing leaves and flowers, casting an ethereal light over your ...

The historic development of luminous efficacy for the most common white-light sources is shown in Fig. 3. Figure 3: Historic development of the most common white-light sources and improvements in ...

The Phobos Weather Center explained that what had happened was just an ordinary atmospheric phenomenon called a halo - a secondary glow around a light source. A sun pillar is one of the most ...

Luminous objects, like the Sun, can be seen because they produce their own light. The light travels in a straight line directly from the source to your eye. Non-luminous objects, like the Moon ...