Seed Magazine posted an interesting photo series documenting scientific laboratories after dark. Describing the top photo above -
Much of the fundamental knowledge that underpins our search for extraterrestrial life and supports our understanding of our solar system’s history and evolution emerges from this small room in Theodor Kostiuk’s laboratory. On the rightmost table, infrared light from a powerful carbon dioxide laser excites various molecules to reveal their spectroscopic signatures. This and other lasers in the lab often operate overnight to increase the precision of their measurements.