I was up unusually late each night this past week week, because the heat and humidity didn't abate very much at night during the heatwave, making it difficult to sleep. During the hottest night I just lingered outside for a few hours, enjoying the slightly lower temperature. To occupy myself I experimented with some long exposures. The sun had just set several minutes before I took this photo, but the hazy night was still visible with the 30 second exposure. A few of the many fireflies lighting up the field, can be seen in the foreground as well (above).