New discovery of ammonia on Europa hints at active geology

View larger. | Composite image showing location of some of the ammonia-bearing compounds on Jupiter’s moon Europa (red pixels). Scientists found them near large fractures in the icy surface crust. The discovery of ammonia on Europa supports the possibility that Europa’s subsurface ocean is habitable. Image via NASA/ JPL-Caltech.

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• Scientists have found ammonia compounds on the surface of Jupiter’s moon Europa.