Answer: Jupiter's moon
Notes: Researchers have found evidence of ozone on Jupiter’s moon Callisto, revealing insights into chemical processes on icy celestial bodies. The study focuses on the chemical evolution of "SO2 astrochemical ice," composed of sulfur dioxide under ultraviolet irradiation. Analysis of UV absorption spectra of irradiated ice samples unveiled a distinct ozone formation signature. Callisto's stable surface suggests it may harbor subsurface oceans or potential habitats, making it a potential candidate for extraterrestrial life.
