Scientists have discovered areas with recently frozen water on Jupiter's moon Europa, supporting the theory of an existing subsurface ocean. The discovery is based on data from the James Webb Telescope. Most of the surface of the moon consists of amorphous ice; however, in the Tara and Pwyll regions, crystalline ice prevails, which breaks down under cosmic radiation within 15 Earth days. The presence of crystalline ice indicates that the water froze very recently, suggesting a constant seepage of water from the subsurface ocean to the surface. In these areas, frozen carbon dioxide with a rare carbon isotope was also found, not seen in other parts of Europa.