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.

This is a common atmospheric phenomenon - but it has led to rumors about the use of "the latest weapons." Due to the fact ...

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 ...

Ultra-luminous X-ray sources (ULXs) are point sources in the sky that are so bright in X-rays that each emits more radiation than 1 million suns emit at all wavelengths. Although they are less ...