Methane on Enceladus: A possible sign of life?

Quantifying signs of life in the depths of Enceladus’ ocean. This work tries to quantify the probability that biological methanogenesis might explain the measurements made by Cassini of Enceladus’ plume.

Most volcanic eruptions on Earth involve liquid rock. In some places, including Enceladus, you get cryovolcanism — where slushy ices flow like lava. What about liquid metal? Ferrovolcanism is thought to be common in space but has never been seen, so volcanologists on Earth decided to make their own.

How Salty is Enceladus’ Ocean Under the ice?