'Tiger stripes' on Saturn's moon Enceladus could reveal if its oceans are habitable 

 A new model of Enceladus "tiger stripe" fractures and their connection with the moon of Saturn's ice geysers and subsurface oceans could have implications for its ability to support life.  

https://cdn.mos.cms.futurecdn.net/DjKJwzoufc5he2vb5xFRA8.jpg

https://www.space.com/enceladus-saturn-moon-tiger-stripes-habitability