Photographer Ken Scott captured these fireflies streaking through the night sky near Willis, Mich., with a series of photos taken over 40 minutes. The technique of merging multiple short exposures into one eliminates the possibility of overexposing the ambient light such as that coming from a nearby city, said Scott, a Suttons Bay professional photographer.
It also captured one of the beetles trundling across the ground and flashing its light. Scott said it wasn’t until he posted the image that he noted the insect’s ground trek from the lower right corner of the frame.
“Yeah, that bugger was a bonus!” he said.
The image appeared recently as NASA’s Earth Science Picture of the Day.