The night side of Europa, Jupiter's ocean moon, may glow green, blue, or white due to radiation from Jupiter energizing salts frozen into its surface. This phenomenon, known as radiation-induced luminescence, could provide a new clue to the composition of Europa's hidden ocean. The article explores the scientific significance of this discovery, emphasizing the importance of interpretation and caution in drawing conclusions about the moon's surface and ocean. The author highlights the potential for the glow to reveal surface salts and their connection to the ocean, but also acknowledges the complexities and uncertainties involved in the process. The article concludes by emphasizing the scientific value of the glow, even if it doesn't provide a direct analysis of the ocean, and the importance of further exploration and investigation of Europa's surface and interior.
