Are we alone in the vast universe? One Japanese researcher is tackling this profound mystery: Dr. Norio Narita, a planetary scientist and an astrobiologist at the University of Tokyo's Komaba Institute for Science. Narita has developed a state-of-the-art spectroscopic camera that enables analysis of the atmospheric components of exoplanets. By detecting trace gases such as water vapor, carbon dioxide and methane, he hopes to identify planets that have the potential to sustain life. In this episode, we'll follow one of Japan's leading planet hunters in his quest for habitable worlds.