Spectroscopy refers to the interactions between matter and light, or radiated energy, and the dispersion of an object’s light into its various wavelengths (i.e. colors). Dissecting an object’s light through spectroscopy helps modern astronomers determine the physical properties of stars. However, the study of light aids more than just astronomers in scientific battles today. New technology known as HINS-light (high-intensity narrow-spectrum) is utilizing nuances of spectroscopy to fight off highly resistant hospital bacteria that plague health systems nation wide. Developed at the University of Strathclyde in Glasgow, Scotland by a multidisciplinary team of experts, the HINS-light decontaminates the air and exposed surfaces with a light focused on a narrow band of visible-light at a 405 nm wavelength (violet). The new technology kills pathogens and is harmless to patients and staff, allowing for the continuous decontamination of hospital rooms. The HINS-light works by using its narrow spectrum of light to excite molecules within bacteria, which then release highly reactive chemicals that are lethal to the tiny prokaryotes. Clinical trials proved the current HINS-light system capable of reducing surface bacterial levels by 86%!