Organics in Enceladus’ plumesThe plumes on Enceladus break through the icy surface at the south pole of the moon. When Cassini flew through Enceladus’ plumes, it tasted them to see what they are composed of. Altogether, these findings support the scenario that Enceladus’ ocean is potentially habitable, by earthly standards. Bottom line: Scientists have thought the organics in Enceladus’ plumes originate in its ocean. Source: Water-Group Ion Irradiation Studies of Enceladus Surface AnaloguesVia EuroplanetRead more: Signs of life on Enceladus might remain hidden in its oceanRead more: Mystery dark spot on Enceladus intrigues scientists