A new study published in the journal Geophysical Research Letters suggests that even if Europa doesn't have hydrothermal volcanic activity beneath its icy crust, the moon's salty subsurface ocean may still be habitable, a possibility thought unlikely before **w.
NASA scientists compared Europa's ability to produce hydrogen and oxygen — two key elements for life as we k**w it — to Earth's and discovered that the moon might have more in common with our planet than expected.* Read more...